Checkout of Instiki Trunk 1/21/2007.

vendor/rails/activerecord/MIT-LICENSE

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+Copyright (c) 2004 David Heinemeier Hansson
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/rails/activerecord/README

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+= Active Record -- Object-relation mapping put on rails
+
+Active Record connects business objects and database tables to create a persistable
+domain model where logic and data are presented in one wrapping. It's an implementation 
+of the object-relational mapping (ORM) pattern[http://www.martinfowler.com/eaaCatalog/activeRecord.html] 
+by the same name as described by Martin Fowler:
+
+  "An object that wraps a row in a database table or view, encapsulates 
+       the database access, and adds domain logic on that data."
+
+Active Record's main contribution to the pattern is to relieve the original of two stunting problems:
+lack of associations and inheritance. By adding a simple domain language-like set of macros to describe
+the former and integrating the Single Table Inheritance pattern for the latter, Active Record narrows the
+gap of functionality between the data mapper and active record approach.
+
+A short rundown of the major features:
+
+* Automated mapping between classes and tables, attributes and columns.
+
+   class Product < ActiveRecord::Base; end
+   
+   ...is automatically mapped to the table named "products", such as:
+   
+   CREATE TABLE products (
+     id int(11) NOT NULL auto_increment,
+     name varchar(255),
+     PRIMARY KEY  (id)
+   );
+
+   ...which again gives Product#name and Product#name=(new_name) 
+   
+  {Learn more}[link:classes/ActiveRecord/Base.html]
+
+
+* Associations between objects controlled by simple meta-programming macros. 
+
+   class Firm < ActiveRecord::Base
+     has_many   :clients
+     has_one    :account
+     belongs_to :conglomorate
+   end
+
+  {Learn more}[link:classes/ActiveRecord/Associations/ClassMethods.html]
+
+
+* Aggregations of value objects controlled by simple meta-programming macros. 
+
+   class Account < ActiveRecord::Base
+     composed_of :balance, :class_name => "Money",
+                 :mapping => %w(balance amount)
+     composed_of :address, 
+                 :mapping => [%w(address_street street), %w(address_city city)]
+   end
+
+  {Learn more}[link:classes/ActiveRecord/Aggregations/ClassMethods.html]
+
+
+* Validation rules that can differ for new or existing objects.
+
+    class Account < ActiveRecord::Base
+      validates_presence_of     :subdomain, :name, :email_address, :password
+      validates_uniqueness_of   :subdomain
+      validates_acceptance_of   :terms_of_service, :on => :create
+      validates_confirmation_of :password, :email_address, :on => :create
+    end
+
+  {Learn more}[link:classes/ActiveRecord/Validations.html]
+
+
+* Acts that can make records work as lists or trees:
+
+    class Item < ActiveRecord::Base
+      belongs_to   :list
+      acts_as_list :scope => :list
+    end
+    
+    item.move_higher
+    item.move_to_bottom
+
+  Learn about {acts_as_list}[link:classes/ActiveRecord/Acts/List/ClassMethods.html], {the instance methods acts_as_list provides}[link:classes/ActiveRecord/Acts/List/InstanceMethods.html], and
+  {acts_as_tree}[link:classes/ActiveRecord/Acts/Tree/ClassMethods.html]
+ 
+* Callbacks as methods or queues on the entire lifecycle (instantiation, saving, destroying, validating, etc).
+
+   class Person < ActiveRecord::Base
+     def before_destroy # is called just before Person#destroy
+       CreditCard.find(credit_card_id).destroy
+     end
+   end
+
+   class Account < ActiveRecord::Base
+     after_find :eager_load, 'self.class.announce(#{id})'
+   end
+
+  {Learn more}[link:classes/ActiveRecord/Callbacks.html]
+
+
+* Observers for the entire lifecycle
+
+   class CommentObserver < ActiveRecord::Observer
+     def after_create(comment) # is called just after Comment#save
+       Notifications.deliver_new_comment("david@loudthinking.com", comment)
+     end
+   end
+
+  {Learn more}[link:classes/ActiveRecord/Observer.html]
+
+
+* Inheritance hierarchies 
+
+   class Company < ActiveRecord::Base; end
+   class Firm < Company; end
+   class Client < Company; end
+   class PriorityClient < Client; end
+
+  {Learn more}[link:classes/ActiveRecord/Base.html]
+
+
+* Transaction support on both a database and object level. The latter is implemented 
+  by using Transaction::Simple[http://www.halostatue.ca/ruby/Transaction__Simple.html]
+
+    # Just database transaction
+    Account.transaction do
+      david.withdrawal(100)
+      mary.deposit(100)
+    end
+
+    # Database and object transaction
+    Account.transaction(david, mary) do
+      david.withdrawal(100)
+      mary.deposit(100)
+    end
+
+  {Learn more}[link:classes/ActiveRecord/Transactions/ClassMethods.html]
+
+
+* Reflections on columns, associations, and aggregations
+
+    reflection = Firm.reflect_on_association(:clients)
+    reflection.klass # => Client (class)
+    Firm.columns # Returns an array of column descriptors for the firms table
+
+  {Learn more}[link:classes/ActiveRecord/Reflection/ClassMethods.html]
+
+
+* Direct manipulation (instead of service invocation)
+
+  So instead of (Hibernate[http://www.hibernate.org/] example):
+
+     long pkId = 1234;
+     DomesticCat pk = (DomesticCat) sess.load( Cat.class, new Long(pkId) );
+     // something interesting involving a cat...
+     sess.save(cat);
+     sess.flush(); // force the SQL INSERT
+
+  Active Record lets you:
+
+     pkId = 1234
+     cat = Cat.find(pkId)
+     # something even more interesting involving the same cat...
+     cat.save
+
+  {Learn more}[link:classes/ActiveRecord/Base.html]
+
+
+* Database abstraction through simple adapters (~100 lines) with a shared connector
+
+   ActiveRecord::Base.establish_connection(:adapter => "sqlite", :database => "dbfile")
+
+   ActiveRecord::Base.establish_connection(
+     :adapter  => "mysql", 
+     :host     => "localhost", 
+     :username => "me", 
+     :password => "secret", 
+     :database => "activerecord"
+   )
+
+  {Learn more}[link:classes/ActiveRecord/Base.html#M000081] and read about the built-in support for
+  MySQL[link:classes/ActiveRecord/ConnectionAdapters/MysqlAdapter.html], PostgreSQL[link:classes/ActiveRecord/ConnectionAdapters/PostgreSQLAdapter.html], SQLite[link:classes/ActiveRecord/ConnectionAdapters/SQLiteAdapter.html], Oracle[link:classes/ActiveRecord/ConnectionAdapters/OCIAdapter.html], SQLServer[link:classes/ActiveRecord/ConnectionAdapters/SQLServerAdapter.html], and DB2[link:classes/ActiveRecord/ConnectionAdapters/DB2Adapter.html].
+
+
+* Logging support for Log4r[http://log4r.sourceforge.net] and Logger[http://www.ruby-doc.org/stdlib/libdoc/logger/rdoc]
+
+    ActiveRecord::Base.logger = Logger.new(STDOUT)
+    ActiveRecord::Base.logger = Log4r::Logger.new("Application Log")
+
+
+== Simple example (1/2): Defining tables and classes (using MySQL)
+
+Data definitions are specified only in the database. Active Record queries the database for 
+the column names (that then serves to determine which attributes are valid) on regular
+object instantiation through the new constructor and relies on the column names in the rows
+with the finders.
+ 
+   # CREATE TABLE companies (
+   #   id int(11) unsigned NOT NULL auto_increment,
+   #   client_of int(11),
+   #   name varchar(255),
+   #   type varchar(100),
+   #   PRIMARY KEY  (id)
+   # )
+
+Active Record automatically links the "Company" object to the "companies" table
+
+   class Company < ActiveRecord::Base
+     has_many :people, :class_name => "Person"
+   end
+
+   class Firm < Company
+     has_many :clients
+  
+     def people_with_all_clients
+      clients.inject([]) { |people, client| people + client.people }
+     end
+   end
+
+The foreign_key is only necessary because we didn't use "firm_id" in the data definition
+ 
+   class Client < Company
+     belongs_to :firm, :foreign_key => "client_of"
+   end
+
+   # CREATE TABLE people (
+   #   id int(11) unsigned NOT NULL auto_increment,
+   #   name text,
+   #   company_id text,
+   #   PRIMARY KEY  (id)
+   # )
+
+Active Record will also automatically link the "Person" object to the "people" table
+
+   class Person < ActiveRecord::Base
+     belongs_to :company
+   end
+
+== Simple example (2/2): Using the domain
+
+Picking a database connection for all the Active Records
+
+   ActiveRecord::Base.establish_connection(
+     :adapter  => "mysql", 
+     :host     => "localhost", 
+     :username => "me", 
+     :password => "secret", 
+     :database => "activerecord"
+   )
+
+Create some fixtures
+
+   firm = Firm.new("name" => "Next Angle")
+   # SQL: INSERT INTO companies (name, type) VALUES("Next Angle", "Firm")
+   firm.save
+
+   client = Client.new("name" => "37signals", "client_of" => firm.id)
+   # SQL: INSERT INTO companies (name, client_of, type) VALUES("37signals", 1, "Firm")
+   client.save
+
+Lots of different finders
+
+   # SQL: SELECT * FROM companies WHERE id = 1
+   next_angle = Company.find(1)
+
+   # SQL: SELECT * FROM companies WHERE id = 1 AND type = 'Firm'
+   next_angle = Firm.find(1)    
+
+   # SQL: SELECT * FROM companies WHERE id = 1 AND name = 'Next Angle'
+   next_angle = Company.find_first "name = 'Next Angle'"
+
+   next_angle = Firm.find_by_sql("SELECT * FROM companies WHERE id = 1").first
+
+The supertype, Company, will return subtype instances
+
+   Firm === next_angle
+
+All the dynamic methods added by the has_many macro
+
+  next_angle.clients.empty?  # true
+  next_angle.clients.size    # total number of clients
+  all_clients = next_angle.clients
+
+Constrained finds makes access security easier when ID comes from a web-app
+
+   # SQL: SELECT * FROM companies WHERE client_of = 1 AND type = 'Client' AND id = 2
+   thirty_seven_signals = next_angle.clients.find(2)
+
+Bi-directional associations thanks to the "belongs_to" macro
+
+   thirty_seven_signals.firm.nil? # true
+
+
+== Examples
+
+Active Record ships with a couple of examples that should give you a good feel for
+operating usage. Be sure to edit the <tt>examples/shared_setup.rb</tt> file for your
+own database before running the examples. Possibly also the table definition SQL in 
+the examples themselves.
+
+It's also highly recommended to have a look at the unit tests. Read more in link:files/RUNNING_UNIT_TESTS.html
+
+
+== Philosophy 
+
+Active Record attempts to provide a coherent wrapper as a solution for the inconvenience that is 
+object-relational mapping. The prime directive for this mapping has been to minimize
+the amount of code needed to build a real-world domain model. This is made possible
+by relying on a number of conventions that make it easy for Active Record to infer
+complex relations and structures from a minimal amount of explicit direction.
+
+Convention over Configuration:
+* No XML-files!
+* Lots of reflection and run-time extension
+* Magic is not inherently a bad word 
+
+Admit the Database:
+* Lets you drop down to SQL for odd cases and performance
+* Doesn't attempt to duplicate or replace data definitions
+
+
+== Download
+
+The latest version of Active Record can be found at
+
+* http://rubyforge.org/project/showfiles.php?group_id=182
+
+Documentation can be found at 
+
+* http://ar.rubyonrails.com
+
+
+== Installation
+
+The prefered method of installing Active Record is through its GEM file. You'll need to have
+RubyGems[http://rubygems.rubyforge.org/wiki/wiki.pl] installed for that, though. If you have,
+then use:
+
+  % [sudo] gem install activerecord-1.10.0.gem
+
+You can also install Active Record the old-fashion way with the following command:
+
+  % [sudo] ruby install.rb
+
+from its distribution directory.
+
+
+== License
+
+Active Record is released under the MIT license.
+
+
+== Support
+
+The Active Record homepage is http://www.rubyonrails.com. You can find the Active Record
+RubyForge page at http://rubyforge.org/projects/activerecord. And as Jim from Rake says:
+
+   Feel free to submit commits or feature requests.  If you send a patch,
+   remember to update the corresponding unit tests.  If fact, I prefer
+   new feature to be submitted in the form of new unit tests.
+
+For other information, feel free to ask on the ruby-talk mailing list
+(which is mirrored to comp.lang.ruby) or contact mailto:david@loudthinking.com.

vendor/rails/activerecord/RUNNING_UNIT_TESTS

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+== Creating the test database
+
+The default names for the test databases are "activerecord_unittest" and 
+"activerecord_unittest2". If you want to use another database name then be sure 
+to update the connection adapter setups you want to test with in 
+test/connections/<your database>/connection.rb. 
+When you have the database online, you can import the fixture tables with 
+the test/fixtures/db_definitions/*.sql files.
+
+Make sure that you create database objects with the same user that you specified in i
+connection.rb otherwise (on Postgres, at least) tests for default values will fail.
+
+== Running with Rake
+
+The easiest way to run the unit tests is through Rake. The default task runs
+the entire test suite for all the adapters. You can also run the suite on just
+one adapter by using the tasks test_mysql_ruby, test_ruby_mysql, test_sqlite, 
+or test_postgresql. For more information, checkout the full array of rake tasks with "rake -T"
+
+Rake can be found at http://rake.rubyforge.org
+
+== Running by hand
+
+Unit tests are located in test directory. If you only want to run a single test suite, 
+or don't want to bother with Rake, you can do so with something like:
+
+   cd test; ruby -I "connections/native_mysql" base_test.rb
+   
+That'll run the base suite using the MySQL-Ruby adapter. Change the adapter
+and test suite name as needed.
+
+You can also run all the suites on a specific adapter with:
+
+   cd test; all.sh "connections/native_mysql"
+
+== Faster tests
+
+If you are using a database that supports transactions, you can set the
+"AR_TX_FIXTURES" environment variable to "yes" to use transactional fixtures.
+This gives a very large speed boost. With rake:
+
+  rake AR_TX_FIXTURES=yes
+
+Or, by hand:
+
+  AR_TX_FIXTURES=yes ruby -I connections/native_sqlite3 base_test.rb

vendor/rails/activerecord/Rakefile

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+require 'rubygems'
+require 'rake'
+require 'rake/testtask'
+require 'rake/rdoctask'
+require 'rake/packagetask'
+require 'rake/gempackagetask'
+require 'rake/contrib/rubyforgepublisher'
+require File.join(File.dirname(__FILE__), 'lib', 'active_record', 'version')
+
+PKG_BUILD     = ENV['PKG_BUILD'] ? '.' + ENV['PKG_BUILD'] : ''
+PKG_NAME      = 'activerecord'
+PKG_VERSION   = ActiveRecord::VERSION::STRING + PKG_BUILD
+PKG_FILE_NAME = "#{PKG_NAME}-#{PKG_VERSION}"
+
+RELEASE_NAME  = "REL #{PKG_VERSION}"
+
+RUBY_FORGE_PROJECT = "activerecord"
+RUBY_FORGE_USER    = "webster132"
+
+PKG_FILES = FileList[
+    "lib/**/*", "test/**/*", "examples/**/*", "doc/**/*", "[A-Z]*", "install.rb", "Rakefile"
+].exclude(/\bCVS\b|~$/)
+
+
+desc "Default Task"
+task :default => [ :test_mysql, :test_sqlite, :test_postgresql ]
+
+# Run the unit tests
+
+for adapter in %w( mysql postgresql sqlite sqlite3 firebird sqlserver sqlserver_odbc db2 oracle sybase openbase )
+  Rake::TestTask.new("test_#{adapter}") { |t|
+    t.libs << "test" << "test/connections/native_#{adapter}"
+    t.pattern = "test/*_test{,_#{adapter}}.rb"
+    t.verbose = true
+  }
+end
+
+SCHEMA_PATH = File.join(File.dirname(__FILE__), *%w(test fixtures db_definitions))
+
+desc 'Build the MySQL test databases'
+task :build_mysql_databases do 
+  %x( mysqladmin  create activerecord_unittest )
+  %x( mysqladmin  create activerecord_unittest2 )
+  %x( mysql  activerecord_unittest < #{File.join(SCHEMA_PATH, 'mysql.sql')} )
+  %x( mysql  activerecord_unittest < #{File.join(SCHEMA_PATH, 'mysql2.sql')} )
+end
+
+desc 'Drop the MySQL test databases'
+task :drop_mysql_databases do 
+  %x( mysqladmin -f drop activerecord_unittest )
+  %x( mysqladmin -f drop activerecord_unittest2 )
+end
+
+desc 'Rebuild the MySQL test databases'
+task :rebuild_mysql_databases => [:drop_mysql_databases, :build_mysql_databases]
+
+desc 'Build the PostgreSQL test databases'
+task :build_postgresql_databases do 
+  %x( createdb activerecord_unittest )
+  %x( createdb activerecord_unittest2 )
+  %x( psql activerecord_unittest -f #{File.join(SCHEMA_PATH, 'postgresql.sql')} )
+  %x( psql activerecord_unittest2 -f #{File.join(SCHEMA_PATH, 'postgresql2.sql')} )
+end
+
+desc 'Drop the PostgreSQL test databases'
+task :drop_postgresql_databases do 
+  %x( dropdb   activerecord_unittest )
+  %x( dropdb   activerecord_unittest2 )
+end
+
+desc 'Rebuild the PostgreSQL test databases'
+task :rebuild_postgresql_databases => [:drop_postgresql_databases, :build_postgresql_databases]
+
+# Generate the RDoc documentation
+
+Rake::RDocTask.new { |rdoc|
+  rdoc.rdoc_dir = 'doc'
+  rdoc.title    = "Active Record -- Object-relation mapping put on rails"
+  rdoc.options << '--line-numbers' << '--inline-source' << '-A cattr_accessor=object'
+  rdoc.template = "#{ENV['template']}.rb" if ENV['template']
+  rdoc.rdoc_files.include('README', 'RUNNING_UNIT_TESTS', 'CHANGELOG')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+  rdoc.rdoc_files.exclude('lib/active_record/vendor/*')
+  rdoc.rdoc_files.include('dev-utils/*.rb')
+}
+
+# Enhance rdoc task to copy referenced images also
+task :rdoc do
+  FileUtils.mkdir_p "doc/files/examples/"
+  FileUtils.copy "examples/associations.png", "doc/files/examples/associations.png"
+end
+
+
+# Create compressed packages
+
+dist_dirs = [ "lib", "test", "examples", "dev-utils" ]
+
+spec = Gem::Specification.new do |s|
+  s.name = PKG_NAME
+  s.version = PKG_VERSION
+  s.summary = "Implements the ActiveRecord pattern for ORM."
+  s.description = %q{Implements the ActiveRecord pattern (Fowler, PoEAA) for ORM. It ties database tables and classes together for business objects, like Customer or Subscription, that can find, save, and destroy themselves without resorting to manual SQL.}
+
+  s.files = [ "Rakefile", "install.rb", "README", "RUNNING_UNIT_TESTS", "CHANGELOG" ]
+  dist_dirs.each do |dir|
+    s.files = s.files + Dir.glob( "#{dir}/**/*" ).delete_if { |item| item.include?( "\.svn" ) }
+  end
+  
+  s.add_dependency('activesupport', '= 1.3.1' + PKG_BUILD)
+
+  s.files.delete "test/fixtures/fixture_database.sqlite"
+  s.files.delete "test/fixtures/fixture_database_2.sqlite"
+  s.files.delete "test/fixtures/fixture_database.sqlite3"
+  s.files.delete "test/fixtures/fixture_database_2.sqlite3"
+  s.require_path = 'lib'
+  s.autorequire = 'active_record'
+
+  s.has_rdoc = true
+  s.extra_rdoc_files = %w( README )
+  s.rdoc_options.concat ['--main',  'README']
+  
+  s.author = "David Heinemeier Hansson"
+  s.email = "david@loudthinking.com"
+  s.homepage = "http://www.rubyonrails.org"
+  s.rubyforge_project = "activerecord"
+end
+  
+Rake::GemPackageTask.new(spec) do |p|
+  p.gem_spec = spec
+  p.need_tar = true
+  p.need_zip = true
+end
+
+task :lines do
+  lines, codelines, total_lines, total_codelines = 0, 0, 0, 0
+
+  for file_name in FileList["lib/active_record/**/*.rb"]
+    next if file_name =~ /vendor/
+    f = File.open(file_name)
+
+    while line = f.gets
+      lines += 1
+      next if line =~ /^\s*$/
+      next if line =~ /^\s*#/
+      codelines += 1
+    end
+    puts "L: #{sprintf("%4d", lines)}, LOC #{sprintf("%4d", codelines)} | #{file_name}"
+    
+    total_lines     += lines
+    total_codelines += codelines
+    
+    lines, codelines = 0, 0
+  end
+
+  puts "Total: Lines #{total_lines}, LOC #{total_codelines}"
+end
+
+
+# Publishing ------------------------------------------------------
+
+desc "Publish the beta gem"
+task :pgem => [:package] do 
+  Rake::SshFilePublisher.new("davidhh@wrath.rubyonrails.org", "public_html/gems/gems", "pkg", "#{PKG_FILE_NAME}.gem").upload
+  `ssh davidhh@wrath.rubyonrails.org './gemupdate.sh'`
+end
+
+desc "Publish the API documentation"
+task :pdoc => [:rdoc] do 
+  Rake::SshDirPublisher.new("davidhh@wrath.rubyonrails.org", "public_html/ar", "doc").upload
+end
+
+desc "Publish the release files to RubyForge."
+task :release => [ :package ] do
+  `rubyforge login`
+
+  for ext in %w( gem tgz zip )
+    release_command = "rubyforge add_release #{PKG_NAME} #{PKG_NAME} 'REL #{PKG_VERSION}' pkg/#{PKG_NAME}-#{PKG_VERSION}.#{ext}"
+    puts release_command
+    system(release_command)
+  end
+end

vendor/rails/activerecord/benchmarks/benchmark.rb

@@ -0,0 +1,26 @@
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+if ARGV[2]
+  require 'rubygems'
+  require_gem 'activerecord', ARGV[2]
+else
+  require 'active_record'
+end
+
+ActiveRecord::Base.establish_connection(:adapter => "mysql", :database => "basecamp")
+
+class Post < ActiveRecord::Base; end
+
+require 'benchmark'
+
+RUNS = ARGV[0].to_i
+if ARGV[1] == "profile" then require 'profile' end
+
+runtime = Benchmark::measure {
+  RUNS.times { 
+    Post.find_all(nil,nil,100).each { |p| p.title }
+  }
+}
+
+puts "Runs: #{RUNS}"
+puts "Avg. runtime: #{runtime.real / RUNS}"
+puts "Requests/second: #{RUNS / runtime.real}"

vendor/rails/activerecord/benchmarks/mysql_benchmark.rb

@@ -0,0 +1,19 @@
+require 'mysql'
+
+conn = Mysql::real_connect("localhost", "root", "", "basecamp")
+
+require 'benchmark'
+
+require 'profile' if ARGV[1] == "profile"
+RUNS = ARGV[0].to_i
+
+runtime = Benchmark::measure {
+  RUNS.times { 
+    result = conn.query("SELECT * FROM posts LIMIT 100")
+    result.each_hash { |p| p["title"] }
+  }
+}
+
+puts "Runs: #{RUNS}"
+puts "Avg. runtime: #{runtime.real / RUNS}"
+puts "Requests/second: #{RUNS / runtime.real}"

vendor/rails/activerecord/examples/associations.rb

@@ -0,0 +1,87 @@
+require File.dirname(__FILE__) + '/shared_setup'
+
+logger = Logger.new(STDOUT)
+
+# Database setup ---------------
+
+logger.info "\nCreate tables"
+
+[ "DROP TABLE companies", "DROP TABLE people", "DROP TABLE people_companies",
+  "CREATE TABLE companies (id int(11) auto_increment, client_of int(11), name varchar(255), type varchar(100), PRIMARY KEY (id))",
+  "CREATE TABLE people (id int(11) auto_increment, name varchar(100), PRIMARY KEY (id))",
+  "CREATE TABLE people_companies (person_id int(11), company_id int(11), PRIMARY KEY (person_id, company_id))",
+].each { |statement|
+  # Tables doesn't necessarily already exist
+  begin; ActiveRecord::Base.connection.execute(statement); rescue ActiveRecord::StatementInvalid; end
+}
+
+
+# Class setup ---------------
+
+class Company < ActiveRecord::Base
+  has_and_belongs_to_many :people, :class_name => "Person", :join_table => "people_companies", :table_name => "people"
+end
+
+class Firm < Company
+  has_many :clients, :foreign_key => "client_of"
+
+  def people_with_all_clients
+    clients.inject([]) { |people, client| people + client.people }
+  end
+end
+
+class Client < Company
+  belongs_to :firm, :foreign_key => "client_of"
+end
+
+class Person < ActiveRecord::Base
+  has_and_belongs_to_many :companies, :join_table => "people_companies"
+  def self.table_name() "people" end
+end
+
+
+# Usage ---------------
+
+logger.info "\nCreate fixtures"
+
+Firm.new("name" => "Next Angle").save
+Client.new("name" => "37signals", "client_of" => 1).save
+Person.new("name" => "David").save
+
+
+logger.info "\nUsing Finders"
+
+next_angle = Company.find(1)
+next_angle = Firm.find(1)    
+next_angle = Company.find_first "name = 'Next Angle'"
+next_angle = Firm.find_by_sql("SELECT * FROM companies WHERE id = 1").first
+
+Firm === next_angle
+
+
+logger.info "\nUsing has_many association"
+
+next_angle.has_clients?
+next_angle.clients_count
+all_clients = next_angle.clients
+
+thirty_seven_signals = next_angle.find_in_clients(2)
+
+
+logger.info "\nUsing belongs_to association"
+
+thirty_seven_signals.has_firm?
+thirty_seven_signals.firm?(next_angle)
+
+
+logger.info "\nUsing has_and_belongs_to_many association"
+
+david = Person.find(1)
+david.add_companies(thirty_seven_signals, next_angle)
+david.companies.include?(next_angle)
+david.companies_count == 2
+
+david.remove_companies(next_angle)
+david.companies_count == 1
+
+thirty_seven_signals.people.include?(david)

vendor/rails/activerecord/examples/shared_setup.rb

@@ -0,0 +1,15 @@
+# Be sure to change the mysql_connection details and create a database for the example
+
+$: << File.dirname(__FILE__) + '/../lib'
+
+require 'active_record'
+require 'logger'; class Logger; def format_message(severity, timestamp, msg, progname) "#{msg}\n" end; end
+
+ActiveRecord::Base.logger = Logger.new(STDOUT)
+ActiveRecord::Base.establish_connection(
+  :adapter  => "mysql", 
+  :host     => "localhost", 
+  :username => "root", 
+  :password => "", 
+  :database => "activerecord_examples"
+)

vendor/rails/activerecord/examples/validation.rb

@@ -0,0 +1,85 @@
+require File.dirname(__FILE__) + '/shared_setup'
+
+logger = Logger.new(STDOUT)
+
+# Database setup ---------------
+
+logger.info "\nCreate tables"
+
+[ "DROP TABLE people",
+  "CREATE TABLE people (id int(11) auto_increment, name varchar(100), pass varchar(100), email varchar(100), PRIMARY KEY (id))"
+].each { |statement|
+  begin; ActiveRecord::Base.connection.execute(statement); rescue ActiveRecord::StatementInvalid; end # Tables doesn't necessarily already exist
+}
+
+
+# Class setup ---------------
+
+class Person < ActiveRecord::Base
+  # Using 
+  def self.authenticate(name, pass)
+    # find_first "name = '#{name}' AND pass = '#{pass}'" would be open to sql-injection (in a web-app scenario)
+    find_first [ "name = '%s' AND pass = '%s'", name, pass ]
+  end
+
+  def self.name_exists?(name, id = nil)
+    if id.nil?
+      condition = [ "name = '%s'", name ]
+    else
+      # Check if anyone else than the person identified by person_id has that user_name
+      condition = [ "name = '%s' AND id <> %d", name, id ]
+    end
+
+    !find_first(condition).nil?
+  end
+
+  def email_address_with_name
+    "\"#{name}\" <#{email}>"
+  end
+        
+  protected
+    def validate
+      errors.add_on_empty(%w(name pass email))
+      errors.add("email", "must be valid") unless email_address_valid?
+    end
+
+    def validate_on_create
+      if attribute_present?("name") && Person.name_exists?(name)
+          errors.add("name", "is already taken by another person")
+      end
+    end
+
+    def validate_on_update
+      if attribute_present?("name") && Person.name_exists?(name, id)
+          errors.add("name", "is already taken by another person")
+      end
+    end
+  
+  private
+    def email_address_valid?() email =~ /\w[-.\w]*\@[-\w]+[-.\w]*\.\w+/ end
+end
+
+# Usage ---------------
+
+logger.info "\nCreate fixtures"
+david = Person.new("name" => "David Heinemeier Hansson", "pass" => "", "email" => "")
+unless david.save
+  puts "There was #{david.errors.count} error(s)"
+  david.errors.each_full { |error| puts error }
+end
+
+david.pass = "something"
+david.email = "invalid_address"
+unless david.save
+  puts "There was #{david.errors.count} error(s)"
+  puts "It was email with: " + david.errors.on("email")
+end
+
+david.email = "david@loudthinking.com"
+if david.save then puts "David finally made it!" end
+
+
+another_david = Person.new("name" => "David Heinemeier Hansson", "pass" => "xc", "email" => "david@loudthinking")
+unless another_david.save
+  puts "Error on name: " + another_david.errors.on("name")
+end

vendor/rails/activerecord/install.rb

@@ -0,0 +1,30 @@
+require 'rbconfig'
+require 'find'
+require 'ftools'
+
+include Config
+
+# this was adapted from rdoc's install.rb by ways of Log4r
+
+$sitedir = CONFIG["sitelibdir"]
+unless $sitedir
+  version = CONFIG["MAJOR"] + "." + CONFIG["MINOR"]
+  $libdir = File.join(CONFIG["libdir"], "ruby", version)
+  $sitedir = $:.find {|x| x =~ /site_ruby/ }
+  if !$sitedir
+    $sitedir = File.join($libdir, "site_ruby")
+  elsif $sitedir !~ Regexp.quote(version)
+    $sitedir = File.join($sitedir, version)
+  end
+end
+
+# the acual gruntwork
+Dir.chdir("lib")
+
+Find.find("active_record", "active_record.rb") { |f|
+  if f[-3..-1] == ".rb"
+    File::install(f, File.join($sitedir, *f.split(/\//)), 0644, true)
+  else
+    File::makedirs(File.join($sitedir, *f.split(/\//)))
+  end
+}

vendor/rails/activerecord/lib/active_record.rb

@@ -0,0 +1,79 @@
+#--
+# Copyright (c) 2004 David Heinemeier Hansson
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#++
+
+$:.unshift(File.dirname(__FILE__)) unless
+  $:.include?(File.dirname(__FILE__)) || $:.include?(File.expand_path(File.dirname(__FILE__)))
+
+unless defined?(ActiveSupport)
+  begin
+    $:.unshift(File.dirname(__FILE__) + "/../../activesupport/lib")  
+    require 'active_support'  
+  rescue LoadError
+    require 'rubygems'
+    require_gem 'activesupport'
+  end
+end
+
+require 'active_record/base'
+require 'active_record/observer'
+require 'active_record/validations'
+require 'active_record/callbacks'
+require 'active_record/reflection'
+require 'active_record/associations'
+require 'active_record/aggregations'
+require 'active_record/transactions'
+require 'active_record/timestamp'
+require 'active_record/acts/list'
+require 'active_record/acts/tree'
+require 'active_record/acts/nested_set'
+require 'active_record/locking'
+require 'active_record/migration'
+require 'active_record/schema'
+require 'active_record/calculations'
+
+ActiveRecord::Base.class_eval do
+  include ActiveRecord::Validations
+  include ActiveRecord::Locking
+  include ActiveRecord::Callbacks
+  include ActiveRecord::Observing
+  include ActiveRecord::Timestamp
+  include ActiveRecord::Associations
+  include ActiveRecord::Aggregations
+  include ActiveRecord::Transactions
+  include ActiveRecord::Reflection
+  include ActiveRecord::Acts::Tree
+  include ActiveRecord::Acts::List
+  include ActiveRecord::Acts::NestedSet
+  include ActiveRecord::Calculations
+end
+
+unless defined?(RAILS_CONNECTION_ADAPTERS)
+  RAILS_CONNECTION_ADAPTERS = %w( mysql postgresql sqlite firebird sqlserver db2 oracle sybase openbase )
+end
+
+RAILS_CONNECTION_ADAPTERS.each do |adapter|
+  require "active_record/connection_adapters/" + adapter + "_adapter"
+end
+
+require 'active_record/query_cache'
+require 'active_record/schema_dumper'

vendor/rails/activerecord/lib/active_record/acts/list.rb

@@ -0,0 +1,233 @@
+module ActiveRecord
+  module Acts #:nodoc:
+    module List #:nodoc:
+      def self.append_features(base)
+        super
+        base.extend(ClassMethods)
+      end
+      
+      # This act provides the capabilities for sorting and reordering a number of objects in a list.
+      # The class that has this specified needs to have a "position" column defined as an integer on
+      # the mapped database table.
+      #
+      # Todo list example:
+      #
+      #   class TodoList < ActiveRecord::Base
+      #     has_many :todo_items, :order => "position"
+      #   end
+      #
+      #   class TodoItem < ActiveRecord::Base
+      #     belongs_to :todo_list
+      #     acts_as_list :scope => :todo_list
+      #   end
+      #
+      #   todo_list.first.move_to_bottom
+      #   todo_list.last.move_higher
+      module ClassMethods
+        # Configuration options are:
+        #
+        # * +column+ - specifies the column name to use for keeping the position integer (default: position)
+        # * +scope+ - restricts what is to be considered a list. Given a symbol, it'll attach "_id" 
+        #   (if that hasn't been already) and use that as the foreign key restriction. It's also possible 
+        #   to give it an entire string that is interpolated if you need a tighter scope than just a foreign key.
+        #   Example: <tt>acts_as_list :scope => 'todo_list_id = #{todo_list_id} AND completed = 0'</tt>
+        def acts_as_list(options = {})
+          configuration = { :column => "position", :scope => "1 = 1" }
+          configuration.update(options) if options.is_a?(Hash)
+
+          configuration[:scope] = "#{configuration[:scope]}_id".intern if configuration[:scope].is_a?(Symbol) && configuration[:scope].to_s !~ /_id$/
+          
+          if configuration[:scope].is_a?(Symbol)
+            scope_condition_method = %(
+              def scope_condition
+                if #{configuration[:scope].to_s}.nil?
+                  "#{configuration[:scope].to_s} IS NULL"
+                else
+                  "#{configuration[:scope].to_s} = \#{#{configuration[:scope].to_s}}"
+                end
+              end
+            )
+          else
+            scope_condition_method = "def scope_condition() \"#{configuration[:scope]}\" end"
+          end
+          
+          class_eval <<-EOV
+            include ActiveRecord::Acts::List::InstanceMethods
+
+            def acts_as_list_class
+              ::#{self.name}
+            end
+            
+            def position_column
+              '#{configuration[:column]}'
+            end
+            
+            #{scope_condition_method}
+            
+            after_destroy  :remove_from_list
+            before_create  :add_to_list_bottom
+          EOV
+        end
+      end
+        
+      # All the methods available to a record that has had <tt>acts_as_list</tt> specified. Each method works
+      # by assuming the object to be the item in the list, so <tt>chapter.move_lower</tt> would move that chapter
+      # lower in the list of all chapters. Likewise, <tt>chapter.first?</tt> would return true if that chapter is
+      # the first in the list of all chapters.
+      module InstanceMethods
+        def insert_at(position = 1)
+          insert_at_position(position)
+        end
+
+        def move_lower
+          return unless lower_item
+
+          acts_as_list_class.transaction do
+            lower_item.decrement_position
+            increment_position
+          end
+        end
+        
+        def move_higher
+          return unless higher_item
+
+          acts_as_list_class.transaction do
+            higher_item.increment_position
+            decrement_position
+          end
+        end
+        
+        def move_to_bottom
+          return unless in_list?
+          acts_as_list_class.transaction do
+            decrement_positions_on_lower_items
+            assume_bottom_position
+          end
+        end
+        
+        def move_to_top
+          return unless in_list?
+          acts_as_list_class.transaction do
+            increment_positions_on_higher_items
+            assume_top_position
+          end
+        end
+  
+        def remove_from_list
+          decrement_positions_on_lower_items if in_list?
+        end
+
+        def increment_position
+          return unless in_list?
+          update_attribute position_column, self.send(position_column).to_i + 1
+        end
+  
+        def decrement_position
+          return unless in_list?
+          update_attribute position_column, self.send(position_column).to_i - 1
+        end
+  
+        def first?
+          return false unless in_list?
+          self.send(position_column) == 1
+        end
+        
+        def last?
+          return false unless in_list?
+          self.send(position_column) == bottom_position_in_list
+        end
+        
+        def higher_item
+          return nil unless in_list?
+          acts_as_list_class.find(:first, :conditions =>
+            "#{scope_condition} AND #{position_column} = #{(send(position_column).to_i - 1).to_s}"
+          )
+        end
+
+        def lower_item
+          return nil unless in_list?
+          acts_as_list_class.find(:first, :conditions =>
+            "#{scope_condition} AND #{position_column} = #{(send(position_column).to_i + 1).to_s}"
+          )
+        end
+
+        def in_list?
+          !send(position_column).nil?
+        end
+
+        private
+          def add_to_list_top
+            increment_positions_on_all_items
+          end
+
+          def add_to_list_bottom
+            self[position_column] = bottom_position_in_list.to_i + 1
+          end
+
+          # Overwrite this method to define the scope of the list changes
+          def scope_condition() "1" end
+
+          def bottom_position_in_list(except = nil)
+            item = bottom_item(except)
+            item ? item.send(position_column) : 0
+          end
+
+          def bottom_item(except = nil)
+            conditions = scope_condition
+            conditions = "#{conditions} AND #{self.class.primary_key} != #{except.id}" if except
+            acts_as_list_class.find(:first, :conditions => conditions, :order => "#{position_column} DESC")
+          end
+
+          def assume_bottom_position
+            update_attribute(position_column, bottom_position_in_list(self).to_i + 1)
+          end
+  
+          def assume_top_position
+            update_attribute(position_column, 1)
+          end
+
+          # This has the effect of moving all the higher items up one.
+          def decrement_positions_on_higher_items(position)
+            acts_as_list_class.update_all(
+              "#{position_column} = (#{position_column} - 1)", "#{scope_condition} AND #{position_column} <= #{position}"
+            )
+          end
+
+          # This has the effect of moving all the lower items up one.
+          def decrement_positions_on_lower_items
+            return unless in_list?
+            acts_as_list_class.update_all(
+              "#{position_column} = (#{position_column} - 1)", "#{scope_condition} AND #{position_column} > #{send(position_column).to_i}"
+            )
+          end
+
+          # This has the effect of moving all the higher items down one.
+          def increment_positions_on_higher_items
+            return unless in_list?
+            acts_as_list_class.update_all(
+              "#{position_column} = (#{position_column} + 1)", "#{scope_condition} AND #{position_column} < #{send(position_column).to_i}"
+            )
+          end
+
+          # This has the effect of moving all the lower items down one.
+          def increment_positions_on_lower_items(position)
+            acts_as_list_class.update_all(
+              "#{position_column} = (#{position_column} + 1)", "#{scope_condition} AND #{position_column} >= #{position}"
+           )
+          end
+
+          def increment_positions_on_all_items
+            acts_as_list_class.update_all(
+              "#{position_column} = (#{position_column} + 1)",  "#{scope_condition}"
+            )
+          end
+
+          def insert_at_position(position)
+            remove_from_list
+            increment_positions_on_lower_items(position)
+            self.update_attribute(position_column, position)
+          end
+      end     
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/acts/nested_set.rb

@@ -0,0 +1,212 @@
+module ActiveRecord
+  module Acts #:nodoc:
+    module NestedSet #:nodoc:
+      def self.append_features(base)
+        super        
+        base.extend(ClassMethods)              
+      end  
+
+      # This acts provides Nested Set functionality.  Nested Set is similiar to Tree, but with
+      # the added feature that you can select the children and all of their descendents with
+      # a single query.  A good use case for this is a threaded post system, where you want
+      # to display every reply to a comment without multiple selects.
+      #
+      # A google search for "Nested Set" should point you in the direction to explain the
+      # database theory.  I figured out a bunch of this from
+      # http://threebit.net/tutorials/nestedset/tutorial1.html
+      #
+      # Instead of picturing a leaf node structure with children pointing back to their parent,
+      # the best way to imagine how this works is to think of the parent entity surrounding all
+      # of its children, and its parent surrounding it, etc.  Assuming that they are lined up
+      # horizontally, we store the left and right boundries in the database.
+      #
+      # Imagine:
+      #   root
+      #     |_ Child 1
+      #       |_ Child 1.1
+      #       |_ Child 1.2
+      #     |_ Child 2
+      #       |_ Child 2.1
+      #       |_ Child 2.2
+      #
+      # If my cirlces in circles description didn't make sense, check out this sweet
+      # ASCII art:
+      #
+      #     ___________________________________________________________________
+      #    |  Root                                                             |
+      #    |    ____________________________    ____________________________   |
+      #    |   |  Child 1                  |   |  Child 2                  |   |
+      #    |   |   __________   _________  |   |   __________   _________  |   |
+      #    |   |  |  C 1.1  |  |  C 1.2 |  |   |  |  C 2.1  |  |  C 2.2 |  |   |
+      #    1   2  3_________4  5________6  7   8  9_________10 11_______12 13  14
+      #    |   |___________________________|   |___________________________|   |
+      #    |___________________________________________________________________| 
+      #
+      # The numbers represent the left and right boundries.  The table then might
+      # look like this:
+      #    ID | PARENT | LEFT | RIGHT | DATA
+      #     1 |      0 |    1 |    14 | root
+      #     2 |      1 |    2 |     7 | Child 1
+      #     3 |      2 |    3 |     4 | Child 1.1
+      #     4 |      2 |    5 |     6 | Child 1.2
+      #     5 |      1 |    8 |    13 | Child 2
+      #     6 |      5 |    9 |    10 | Child 2.1
+      #     7 |      5 |   11 |    12 | Child 2.2
+      #
+      # So, to get all children of an entry, you
+      #     SELECT * WHERE CHILD.LEFT IS BETWEEN PARENT.LEFT AND PARENT.RIGHT
+      #
+      # To get the count, it's (LEFT - RIGHT + 1)/2, etc.
+      #
+      # To get the direct parent, it falls back to using the PARENT_ID field.   
+      #
+      # There are instance methods for all of these.
+      #
+      # The structure is good if you need to group things together; the downside is that
+      # keeping data integrity is a pain, and both adding and removing an entry
+      # require a full table write.        
+      #
+      # This sets up a before_destroy trigger to prune the tree correctly if one of its
+      # elements gets deleted.
+      #
+      module ClassMethods                      
+        # Configuration options are:
+        #
+        # * +parent_column+ - specifies the column name to use for keeping the position integer (default: parent_id)
+        # * +left_column+ - column name for left boundry data, default "lft"
+        # * +right_column+ - column name for right boundry data, default "rgt"
+        # * +scope+ - restricts what is to be considered a list. Given a symbol, it'll attach "_id" 
+        #   (if that hasn't been already) and use that as the foreign key restriction. It's also possible 
+        #   to give it an entire string that is interpolated if you need a tighter scope than just a foreign key.
+        #   Example: <tt>acts_as_list :scope => 'todo_list_id = #{todo_list_id} AND completed = 0'</tt>
+        def acts_as_nested_set(options = {})
+          configuration = { :parent_column => "parent_id", :left_column => "lft", :right_column => "rgt", :scope => "1 = 1" }
+          
+          configuration.update(options) if options.is_a?(Hash)
+          
+          configuration[:scope] = "#{configuration[:scope]}_id".intern if configuration[:scope].is_a?(Symbol) && configuration[:scope].to_s !~ /_id$/
+          
+          if configuration[:scope].is_a?(Symbol)
+            scope_condition_method = %(
+              def scope_condition
+                if #{configuration[:scope].to_s}.nil?
+                  "#{configuration[:scope].to_s} IS NULL"
+                else
+                  "#{configuration[:scope].to_s} = \#{#{configuration[:scope].to_s}}"
+                end
+              end
+            )
+          else
+            scope_condition_method = "def scope_condition() \"#{configuration[:scope]}\" end"
+          end
+        
+          class_eval <<-EOV
+            include ActiveRecord::Acts::NestedSet::InstanceMethods
+
+            #{scope_condition_method}
+            
+            def left_col_name() "#{configuration[:left_column]}" end
+
+            def right_col_name() "#{configuration[:right_column]}" end
+              
+            def parent_column() "#{configuration[:parent_column]}" end
+
+          EOV
+        end
+      end
+      
+      module InstanceMethods
+        # Returns true is this is a root node.  
+        def root?
+          parent_id = self[parent_column]
+          (parent_id == 0 || parent_id.nil?) && (self[left_col_name] == 1) && (self[right_col_name] > self[left_col_name])
+        end                                                                                             
+                                    
+        # Returns true is this is a child node
+        def child?                          
+          parent_id = self[parent_column]
+          !(parent_id == 0 || parent_id.nil?) && (self[left_col_name] > 1) && (self[right_col_name] > self[left_col_name])
+        end     
+        
+        # Returns true if we have no idea what this is
+        def unknown?
+          !root? && !child?
+        end
+
+                     
+        # Adds a child to this object in the tree.  If this object hasn't been initialized,
+        # it gets set up as a root node.  Otherwise, this method will update all of the
+        # other elements in the tree and shift them to the right, keeping everything
+        # balanced. 
+        def add_child( child )     
+          self.reload
+          child.reload
+
+          if child.root?
+            raise "Adding sub-tree isn\'t currently supported"
+          else
+            if ( (self[left_col_name] == nil) || (self[right_col_name] == nil) )
+              # Looks like we're now the root node!  Woo
+              self[left_col_name] = 1
+              self[right_col_name] = 4
+              
+              # What do to do about validation?
+              return nil unless self.save
+              
+              child[parent_column] = self.id
+              child[left_col_name] = 2
+              child[right_col_name]= 3
+              return child.save
+            else
+              # OK, we need to add and shift everything else to the right
+              child[parent_column] = self.id
+              right_bound = self[right_col_name]
+              child[left_col_name] = right_bound
+              child[right_col_name] = right_bound + 1
+              self[right_col_name] += 2
+              self.class.transaction {
+                self.class.update_all( "#{left_col_name} = (#{left_col_name} + 2)",  "#{scope_condition} AND #{left_col_name} >= #{right_bound}" )
+                self.class.update_all( "#{right_col_name} = (#{right_col_name} + 2)",  "#{scope_condition} AND #{right_col_name} >= #{right_bound}" )
+                self.save
+                child.save
+              }
+            end
+          end                                   
+        end
+                                   
+        # Returns the number of nested children of this object.
+        def children_count
+          return (self[right_col_name] - self[left_col_name] - 1)/2
+        end
+                                                               
+        # Returns a set of itself and all of its nested children
+        def full_set
+          self.class.find(:all, :conditions => "#{scope_condition} AND (#{left_col_name} BETWEEN #{self[left_col_name]} and #{self[right_col_name]})" )
+        end
+                  
+        # Returns a set of all of its children and nested children
+        def all_children
+          self.class.find(:all, :conditions => "#{scope_condition} AND (#{left_col_name} > #{self[left_col_name]}) and (#{right_col_name} < #{self[right_col_name]})" )
+        end
+                                  
+        # Returns a set of only this entry's immediate children
+        def direct_children
+          self.class.find(:all, :conditions => "#{scope_condition} and #{parent_column} = #{self.id}")
+        end
+                                      
+        # Prunes a branch off of the tree, shifting all of the elements on the right
+        # back to the left so the counts still work.
+        def before_destroy
+          return if self[right_col_name].nil? || self[left_col_name].nil?
+          dif = self[right_col_name] - self[left_col_name] + 1
+
+          self.class.transaction {
+            self.class.delete_all( "#{scope_condition} and #{left_col_name} > #{self[left_col_name]} and #{right_col_name} < #{self[right_col_name]}" )
+            self.class.update_all( "#{left_col_name} = (#{left_col_name} - #{dif})",  "#{scope_condition} AND #{left_col_name} >= #{self[right_col_name]}" )
+            self.class.update_all( "#{right_col_name} = (#{right_col_name} - #{dif} )",  "#{scope_condition} AND #{right_col_name} >= #{self[right_col_name]}" )
+          }
+        end
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/acts/tree.rb

@@ -0,0 +1,90 @@
+module ActiveRecord
+  module Acts #:nodoc:
+    module Tree #:nodoc:
+      def self.append_features(base)
+        super        
+        base.extend(ClassMethods)              
+      end  
+
+      # Specify this act if you want to model a tree structure by providing a parent association and a children 
+      # association. This act requires that you have a foreign key column, which by default is called parent_id.
+      # 
+      #   class Category < ActiveRecord::Base
+      #     acts_as_tree :order => "name"
+      #   end
+      #   
+      #   Example : 
+      #   root
+      #    \_ child1 
+      #         \_ subchild1
+      #         \_ subchild2
+      #
+      #   root      = Category.create("name" => "root")
+      #   child1    = root.children.create("name" => "child1")
+      #   subchild1 = child1.children.create("name" => "subchild1")
+      #
+      #   root.parent   # => nil
+      #   child1.parent # => root
+      #   root.children # => [child1]
+      #   root.children.first.children.first # => subchild1
+      #
+      # In addition to the parent and children associations, the following instance methods are added to the class 
+      # after specifying the act:
+      # * siblings          : Returns all the children of the parent, excluding the current node ([ subchild2 ] when called from subchild1)
+      # * self_and_siblings : Returns all the children of the parent, including the current node ([ subchild1, subchild2 ] when called from subchild1)
+      # * ancestors         : Returns all the ancestors of the current node ([child1, root] when called from subchild2)
+      # * root              : Returns the root of the current node (root when called from subchild2)
+      module ClassMethods
+        # Configuration options are:
+        #
+        # * <tt>foreign_key</tt> - specifies the column name to use for tracking of the tree (default: parent_id)
+        # * <tt>order</tt> - makes it possible to sort the children according to this SQL snippet.
+        # * <tt>counter_cache</tt> - keeps a count in a children_count column if set to true (default: false).
+        def acts_as_tree(options = {})
+          configuration = { :foreign_key => "parent_id", :order => nil, :counter_cache => nil }
+          configuration.update(options) if options.is_a?(Hash)
+
+          belongs_to :parent, :class_name => name, :foreign_key => configuration[:foreign_key], :counter_cache => configuration[:counter_cache]
+          has_many :children, :class_name => name, :foreign_key => configuration[:foreign_key], :order => configuration[:order], :dependent => :destroy
+
+          class_eval <<-EOV
+            include ActiveRecord::Acts::Tree::InstanceMethods
+            
+            def self.roots
+              find(:all, :conditions => "#{configuration[:foreign_key]} IS NULL", :order => #{configuration[:order].nil? ? "nil" : %Q{"#{configuration[:order]}"}})
+            end
+
+            def self.root
+              find(:first, :conditions => "#{configuration[:foreign_key]} IS NULL", :order => #{configuration[:order].nil? ? "nil" : %Q{"#{configuration[:order]}"}})
+            end
+          EOV
+        end
+      end
+
+      module InstanceMethods
+        # Returns list of ancestors, starting from parent until root.
+        #
+        #   subchild1.ancestors # => [child1, root]
+        def ancestors
+          node, nodes = self, []
+          nodes << node = node.parent until not node.has_parent?
+          nodes
+        end
+
+        def root
+          node = self
+          node = node.parent until not node.has_parent?
+          node
+        end
+
+        def siblings
+          self_and_siblings - [self]
+        end
+
+        def self_and_siblings
+          has_parent? ? parent.children : self.class.roots
+        end
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/aggregations.rb

@@ -0,0 +1,167 @@
+module ActiveRecord
+  module Aggregations # :nodoc:
+    def self.included(base)
+      base.extend(ClassMethods)
+    end
+
+    def clear_aggregation_cache #:nodoc:
+      self.class.reflect_on_all_aggregations.to_a.each do |assoc|
+        instance_variable_set "@#{assoc.name}", nil
+      end unless self.new_record?
+    end
+
+    # Active Record implements aggregation through a macro-like class method called +composed_of+ for representing attributes 
+    # as value objects. It expresses relationships like "Account [is] composed of Money [among other things]" or "Person [is]
+    # composed of [an] address". Each call to the macro adds a description of how the value objects are created from the 
+    # attributes of the entity object (when the entity is initialized either as a new object or from finding an existing object) 
+    # and how it can be turned back into attributes (when the entity is saved to the database). Example:
+    #
+    #   class Customer < ActiveRecord::Base
+    #     composed_of :balance, :class_name => "Money", :mapping => %w(balance amount)
+    #     composed_of :address, :mapping => [ %w(address_street street), %w(address_city city) ]
+    #   end
+    #
+    # The customer class now has the following methods to manipulate the value objects:
+    # * <tt>Customer#balance, Customer#balance=(money)</tt>
+    # * <tt>Customer#address, Customer#address=(address)</tt>
+    #
+    # These methods will operate with value objects like the ones described below:
+    #
+    #  class Money
+    #    include Comparable
+    #    attr_reader :amount, :currency
+    #    EXCHANGE_RATES = { "USD_TO_DKK" => 6 }  
+    # 
+    #    def initialize(amount, currency = "USD") 
+    #      @amount, @currency = amount, currency 
+    #    end
+    #
+    #    def exchange_to(other_currency)
+    #      exchanged_amount = (amount * EXCHANGE_RATES["#{currency}_TO_#{other_currency}"]).floor
+    #      Money.new(exchanged_amount, other_currency)
+    #    end
+    #
+    #    def ==(other_money)
+    #      amount == other_money.amount && currency == other_money.currency
+    #    end
+    #
+    #    def <=>(other_money)
+    #      if currency == other_money.currency
+    #        amount <=> amount
+    #      else
+    #        amount <=> other_money.exchange_to(currency).amount
+    #      end
+    #    end
+    #  end
+    #
+    #  class Address
+    #    attr_reader :street, :city
+    #    def initialize(street, city) 
+    #      @street, @city = street, city 
+    #    end
+    #
+    #    def close_to?(other_address) 
+    #      city == other_address.city 
+    #    end
+    #
+    #    def ==(other_address)
+    #      city == other_address.city && street == other_address.street
+    #    end
+    #  end
+    #  
+    # Now it's possible to access attributes from the database through the value objects instead. If you choose to name the
+    # composition the same as the attributes name, it will be the only way to access that attribute. That's the case with our
+    # +balance+ attribute. You interact with the value objects just like you would any other attribute, though:
+    #
+    #   customer.balance = Money.new(20)     # sets the Money value object and the attribute
+    #   customer.balance                     # => Money value object
+    #   customer.balance.exchanged_to("DKK") # => Money.new(120, "DKK")
+    #   customer.balance > Money.new(10)     # => true
+    #   customer.balance == Money.new(20)    # => true
+    #   customer.balance < Money.new(5)      # => false
+    #
+    # Value objects can also be composed of multiple attributes, such as the case of Address. The order of the mappings will
+    # determine the order of the parameters. Example:
+    #
+    #   customer.address_street = "Hyancintvej"
+    #   customer.address_city   = "Copenhagen"
+    #   customer.address        # => Address.new("Hyancintvej", "Copenhagen")
+    #   customer.address = Address.new("May Street", "Chicago")
+    #   customer.address_street # => "May Street" 
+    #   customer.address_city   # => "Chicago" 
+    #
+    # == Writing value objects
+    #
+    # Value objects are immutable and interchangeable objects that represent a given value, such as a Money object representing
+    # $5. Two Money objects both representing $5 should be equal (through methods such as == and <=> from Comparable if ranking
+    # makes sense). This is unlike entity objects where equality is determined by identity. An entity class such as Customer can
+    # easily have two different objects that both have an address on Hyancintvej. Entity identity is determined by object or
+    # relational unique identifiers (such as primary keys). Normal ActiveRecord::Base classes are entity objects.
+    #
+    # It's also important to treat the value objects as immutable. Don't allow the Money object to have its amount changed after
+    # creation. Create a new money object with the new value instead. This is exemplified by the Money#exchanged_to method that
+    # returns a new value object instead of changing its own values. Active Record won't persist value objects that have been
+    # changed through other means than the writer method.
+    #
+    # The immutable requirement is enforced by Active Record by freezing any object assigned as a value object. Attempting to 
+    # change it afterwards will result in a TypeError.
+    # 
+    # Read more about value objects on http://c2.com/cgi/wiki?ValueObject and on the dangers of not keeping value objects
+    # immutable on http://c2.com/cgi/wiki?ValueObjectsShouldBeImmutable
+    module ClassMethods
+      # Adds the a reader and writer method for manipulating a value object, so
+      # <tt>composed_of :address</tt> would add <tt>address</tt> and <tt>address=(new_address)</tt>.
+      #
+      # Options are:
+      # * <tt>:class_name</tt>  - specify the class name of the association. Use it only if that name can't be inferred
+      #   from the part id. So <tt>composed_of :address</tt> will by default be linked to the +Address+ class, but
+      #   if the real class name is +CompanyAddress+, you'll have to specify it with this option.
+      # * <tt>:mapping</tt> - specifies a number of mapping arrays (attribute, parameter) that bind an attribute name
+      #   to a constructor parameter on the value class.
+      #
+      # Option examples:
+      #   composed_of :temperature, :mapping => %w(reading celsius)
+      #   composed_of :balance, :class_name => "Money", :mapping => %w(balance amount)
+      #   composed_of :address, :mapping => [ %w(address_street street), %w(address_city city) ]
+      #   composed_of :gps_location
+      def composed_of(part_id, options = {})
+        options.assert_valid_keys(:class_name, :mapping)
+
+        name        = part_id.id2name
+        class_name  = options[:class_name] || name_to_class_name(name)
+        mapping     = options[:mapping] || [ name, name ]
+
+        reader_method(name, class_name, mapping)
+        writer_method(name, class_name, mapping)
+        
+        create_reflection(:composed_of, part_id, options, self)
+      end
+
+      private
+        def name_to_class_name(name)
+          name.capitalize.gsub(/_(.)/) { |s| $1.capitalize }
+        end
+        
+        def reader_method(name, class_name, mapping)
+          module_eval <<-end_eval
+            def #{name}(force_reload = false)
+              if @#{name}.nil? || force_reload
+                @#{name} = #{class_name}.new(#{(Array === mapping.first ? mapping : [ mapping ]).collect{ |pair| "read_attribute(\"#{pair.first}\")"}.join(", ")})
+              end
+              
+              return @#{name}
+            end
+          end_eval
+        end        
+        
+        def writer_method(name, class_name, mapping)
+          module_eval <<-end_eval
+            def #{name}=(part)
+              @#{name} = part.freeze
+              #{(Array === mapping.first ? mapping : [ mapping ]).collect{ |pair| "@attributes[\"#{pair.first}\"] = part.#{pair.last}" }.join("\n")}
+            end
+          end_eval
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/association_collection.rb

@@ -0,0 +1,160 @@
+require 'set'
+
+module ActiveRecord
+  module Associations
+    class AssociationCollection < AssociationProxy #:nodoc:
+      def to_ary
+        load_target
+        @target.to_ary
+      end
+  
+      def reset
+        @target = []
+        @loaded = false
+      end
+
+      # Add +records+ to this association.  Returns +self+ so method calls may be chained.  
+      # Since << flattens its argument list and inserts each record, +push+ and +concat+ behave identically.
+      def <<(*records)
+        result = true
+        load_target
+
+        @owner.transaction do
+          flatten_deeper(records).each do |record|
+            raise_on_type_mismatch(record)
+            callback(:before_add, record)
+            result &&= insert_record(record) unless @owner.new_record?
+            @target << record
+            callback(:after_add, record)
+          end
+        end
+				
+        result && self
+      end
+
+      alias_method :push, :<<
+      alias_method :concat, :<<
+                      
+      # Remove all records from this association
+      def delete_all
+        load_target
+        delete(@target)
+        @target = []
+      end
+
+      # Remove +records+ from this association.  Does not destroy +records+.
+      def delete(*records)
+        records = flatten_deeper(records)
+        records.each { |record| raise_on_type_mismatch(record) }
+        records.reject! { |record| @target.delete(record) if record.new_record? }
+        return if records.empty?
+        
+        @owner.transaction do
+          records.each { |record| callback(:before_remove, record) }
+          delete_records(records)
+          records.each do |record|
+            @target.delete(record)
+            callback(:after_remove, record)
+          end
+        end
+      end
+
+      # Removes all records from this association.  Returns +self+ so method calls may be chained.
+      def clear
+        return self if length.zero? # forces load_target if hasn't happened already
+
+        if @reflection.options[:dependent] && @reflection.options[:dependent] == :delete_all
+          destroy_all
+        else          
+          delete_all
+        end
+
+        self
+      end
+      
+      def destroy_all
+        @owner.transaction do
+          each { |record| record.destroy }
+        end
+
+        @target = []
+      end
+      
+      def create(attributes = {})
+        # Can't use Base.create since the foreign key may be a protected attribute.
+        if attributes.is_a?(Array)
+          attributes.collect { |attr| create(attr) }
+        else
+          record = build(attributes)
+          record.save unless @owner.new_record?
+          record
+        end
+      end
+
+      # Returns the size of the collection by executing a SELECT COUNT(*) query if the collection hasn't been loaded and
+      # calling collection.size if it has. If it's more likely than not that the collection does have a size larger than zero
+      # and you need to fetch that collection afterwards, it'll take one less SELECT query if you use length.
+      def size
+        if loaded? then @target.size else count_records end
+      end
+      
+      # Returns the size of the collection by loading it and calling size on the array. If you want to use this method to check
+      # whether the collection is empty, use collection.length.zero? instead of collection.empty?
+      def length
+        load_target.size
+      end
+      
+      def empty?
+        size.zero?
+      end
+      
+      def uniq(collection = self)
+        collection.inject([]) { |uniq_records, record| uniq_records << record unless uniq_records.include?(record); uniq_records }
+      end
+
+      # Replace this collection with +other_array+
+      # This will perform a diff and delete/add only records that have changed.
+      def replace(other_array)
+        other_array.each { |val| raise_on_type_mismatch(val) }
+
+        load_target
+        other   = other_array.size < 100 ? other_array : other_array.to_set
+        current = @target.size < 100 ? @target : @target.to_set
+
+        @owner.transaction do
+          delete(@target.select { |v| !other.include?(v) })
+          concat(other_array.select { |v| !current.include?(v) })
+        end
+      end
+
+      private
+        # Array#flatten has problems with recursive arrays. Going one level deeper solves the majority of the problems.
+        def flatten_deeper(array)
+          array.collect { |element| element.respond_to?(:flatten) ? element.flatten : element }.flatten
+        end
+        
+        def callback(method, record)
+          callbacks_for(method).each do |callback|
+            case callback
+              when Symbol
+                @owner.send(callback, record)
+              when Proc, Method
+                callback.call(@owner, record)
+              else
+                if callback.respond_to?(method)
+                  callback.send(method, @owner, record)
+                else
+                  raise ActiveRecordError, "Callbacks must be a symbol denoting the method to call, a string to be evaluated, a block to be invoked, or an object responding to the callback method."
+                end
+            end
+          end
+        end
+        
+        def callbacks_for(callback_name)
+          full_callback_name = "#{callback_name}_for_#{@reflection.name}"
+          @owner.class.read_inheritable_attribute(full_callback_name.to_sym) || []
+        end
+        
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/association_proxy.rb

@@ -0,0 +1,139 @@
+module ActiveRecord
+  module Associations
+    class AssociationProxy #:nodoc:
+      attr_reader :reflection
+      alias_method :proxy_respond_to?, :respond_to?
+      alias_method :proxy_extend, :extend
+      instance_methods.each { |m| undef_method m unless m =~ /(^__|^nil\?|^proxy_respond_to\?|^proxy_extend|^send)/ }
+
+      def initialize(owner, reflection)
+        @owner, @reflection = owner, reflection
+        proxy_extend(reflection.options[:extend]) if reflection.options[:extend]
+        reset
+      end
+      
+      def respond_to?(symbol, include_priv = false)
+        proxy_respond_to?(symbol, include_priv) || (load_target && @target.respond_to?(symbol, include_priv))
+      end
+      
+      # Explicitly proxy === because the instance method removal above
+      # doesn't catch it.
+      def ===(other)
+        load_target
+        other === @target
+      end
+      
+      def aliased_table_name
+        @reflection.klass.table_name
+      end
+      
+      def conditions
+        @conditions ||= eval("%(#{@reflection.active_record.send :sanitize_sql, @reflection.options[:conditions]})") if @reflection.options[:conditions]
+      end
+      alias :sql_conditions :conditions
+      
+      def reset
+        @target = nil
+        @loaded = false
+      end
+
+      def reload
+        reset
+        load_target
+      end
+
+      def loaded?
+        @loaded
+      end
+      
+      def loaded
+        @loaded = true
+      end
+      
+      def target
+        @target
+      end
+      
+      def target=(target)
+        @target = target
+        loaded
+      end
+      
+      protected
+        def dependent?
+          @reflection.options[:dependent] || false
+        end
+        
+        def quoted_record_ids(records)
+          records.map { |record| record.quoted_id }.join(',')
+        end
+
+        def interpolate_sql_options!(options, *keys)
+          keys.each { |key| options[key] &&= interpolate_sql(options[key]) }
+        end
+
+        def interpolate_sql(sql, record = nil)
+          @owner.send(:interpolate_sql, sql, record)
+        end
+
+        def sanitize_sql(sql)
+          @reflection.klass.send(:sanitize_sql, sql)
+        end
+
+        def extract_options_from_args!(args)
+          @owner.send(:extract_options_from_args!, args)
+        end
+
+        def set_belongs_to_association_for(record)
+          if @reflection.options[:as]
+            record["#{@reflection.options[:as]}_id"]   = @owner.id unless @owner.new_record?
+            record["#{@reflection.options[:as]}_type"] = @owner.class.base_class.name.to_s
+          else
+            record[@reflection.primary_key_name] = @owner.id unless @owner.new_record?
+          end
+        end
+
+        def merge_options_from_reflection!(options)
+          options.reverse_merge!(
+            :group   => @reflection.options[:group],
+            :limit   => @reflection.options[:limit],
+            :offset  => @reflection.options[:offset],
+            :joins   => @reflection.options[:joins],
+            :include => @reflection.options[:include],
+            :select  => @reflection.options[:select]
+          )
+        end
+        
+      private
+        def method_missing(method, *args, &block)
+          load_target
+          @target.send(method, *args, &block)
+        end
+
+        def load_target
+          if !@owner.new_record? || foreign_key_present
+            begin
+              @target = find_target if !loaded?
+            rescue ActiveRecord::RecordNotFound
+              reset
+            end
+          end
+
+          loaded if target
+          target
+        end
+
+        # Can be overwritten by associations that might have the foreign key available for an association without
+        # having the object itself (and still being a new record). Currently, only belongs_to present this scenario.
+        def foreign_key_present
+          false
+        end
+
+        def raise_on_type_mismatch(record)
+          unless record.is_a?(@reflection.klass)
+            raise ActiveRecord::AssociationTypeMismatch, "#{@reflection.class_name} expected, got #{record.class}"
+          end
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/belongs_to_association.rb

@@ -0,0 +1,56 @@
+module ActiveRecord
+  module Associations
+    class BelongsToAssociation < AssociationProxy #:nodoc:
+      def create(attributes = {})
+        replace(@reflection.klass.create(attributes))
+      end
+
+      def build(attributes = {})
+        replace(@reflection.klass.new(attributes))
+      end
+
+      def replace(record)
+        counter_cache_name = @reflection.counter_cache_column
+
+        if record.nil?
+          if counter_cache_name && @owner[counter_cache_name] && !@owner.new_record?
+            @reflection.klass.decrement_counter(counter_cache_name, @owner[@reflection.primary_key_name]) if @owner[@reflection.primary_key_name]
+          end
+
+          @target = @owner[@reflection.primary_key_name] = nil
+        else
+          raise_on_type_mismatch(record)
+
+          if counter_cache_name && !@owner.new_record?
+            @reflection.klass.increment_counter(counter_cache_name, record.id)
+            @reflection.klass.decrement_counter(counter_cache_name, @owner[@reflection.primary_key_name]) if @owner[@reflection.primary_key_name]
+          end
+
+          @target = (AssociationProxy === record ? record.target : record)
+          @owner[@reflection.primary_key_name] = record.id unless record.new_record?
+          @updated = true
+        end
+
+        loaded
+        record
+      end
+      
+      def updated?
+        @updated
+      end
+      
+      private
+        def find_target
+          @reflection.klass.find(
+            @owner[@reflection.primary_key_name], 
+            :conditions => conditions,
+            :include    => @reflection.options[:include]
+          )
+        end
+
+        def foreign_key_present
+          !@owner[@reflection.primary_key_name].nil?
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb

@@ -0,0 +1,50 @@
+module ActiveRecord
+  module Associations
+    class BelongsToPolymorphicAssociation < AssociationProxy #:nodoc:
+      def replace(record)
+        if record.nil?
+          @target = @owner[@reflection.primary_key_name] = @owner[@reflection.options[:foreign_type]] = nil
+        else
+          @target = (AssociationProxy === record ? record.target : record)
+
+          unless record.new_record?
+            @owner[@reflection.primary_key_name] = record.id
+            @owner[@reflection.options[:foreign_type]] = record.class.base_class.name.to_s
+          end
+
+          @updated = true
+        end
+
+        loaded
+        record
+      end
+
+      def updated?
+        @updated
+      end
+
+      private
+        def find_target
+          return nil if association_class.nil?
+
+          if @reflection.options[:conditions]
+            association_class.find(
+              @owner[@reflection.primary_key_name], 
+              :conditions => conditions,
+              :include    => @reflection.options[:include]
+            )
+          else
+            association_class.find(@owner[@reflection.primary_key_name], :include => @reflection.options[:include])
+          end
+        end
+
+        def foreign_key_present
+          !@owner[@reflection.primary_key_name].nil?
+        end
+
+        def association_class
+          @owner[@reflection.options[:foreign_type]] ? @owner[@reflection.options[:foreign_type]].constantize : nil
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/has_and_belongs_to_many_association.rb

@@ -0,0 +1,169 @@
+module ActiveRecord
+  module Associations
+    class HasAndBelongsToManyAssociation < AssociationCollection #:nodoc:
+      def initialize(owner, reflection)
+        super
+        construct_sql
+      end
+ 
+      def build(attributes = {})
+        load_target
+        record = @reflection.klass.new(attributes)
+        @target << record
+        record
+      end
+
+      def find_first
+        load_target.first
+      end
+      
+      def find(*args)
+        options = Base.send(:extract_options_from_args!, args)
+
+        # If using a custom finder_sql, scan the entire collection.
+        if @reflection.options[:finder_sql]
+          expects_array = args.first.kind_of?(Array)
+          ids = args.flatten.compact.uniq
+
+          if ids.size == 1
+            id = ids.first.to_i
+            record = load_target.detect { |record| id == record.id }
+            expects_array ? [record] : record
+          else
+            load_target.select { |record| ids.include?(record.id) }
+          end
+        else
+          conditions = "#{@finder_sql}"
+
+          if sanitized_conditions = sanitize_sql(options[:conditions])
+            conditions << " AND (#{sanitized_conditions})"
+          end
+
+          options[:conditions] = conditions
+          options[:joins]      = @join_sql
+          options[:readonly]   = finding_with_ambigious_select?(options[:select])
+
+          if options[:order] && @reflection.options[:order]
+            options[:order] = "#{options[:order]}, #{@reflection.options[:order]}"
+          elsif @reflection.options[:order]
+            options[:order] = @reflection.options[:order]
+          end
+
+          merge_options_from_reflection!(options)
+
+          # Pass through args exactly as we received them.
+          args << options
+          @reflection.klass.find(*args)
+        end
+      end      
+
+      def push_with_attributes(record, join_attributes = {})
+        raise_on_type_mismatch(record)
+        join_attributes.each { |key, value| record[key.to_s] = value }
+
+        callback(:before_add, record)
+        insert_record(record) unless @owner.new_record?
+        @target << record
+        callback(:after_add, record)
+
+        self
+      end
+      
+      alias :concat_with_attributes :push_with_attributes
+
+      def size
+        @reflection.options[:uniq] ? count_records : super
+      end
+      
+      protected
+        def method_missing(method, *args, &block)
+          if @target.respond_to?(method) || (!@reflection.klass.respond_to?(method) && Class.respond_to?(method))
+            super
+          else
+            @reflection.klass.with_scope(:find => { :conditions => @finder_sql, :joins => @join_sql, :readonly => false }) do
+              @reflection.klass.send(method, *args, &block)
+            end
+          end
+        end
+            
+        def find_target
+          if @reflection.options[:finder_sql]
+            records = @reflection.klass.find_by_sql(@finder_sql)
+          else
+            records = find(:all)
+          end
+          
+          @reflection.options[:uniq] ? uniq(records) : records
+        end
+        
+        def count_records
+          load_target.size
+        end
+
+        def insert_record(record)
+          if record.new_record?
+            return false unless record.save
+          end
+
+          if @reflection.options[:insert_sql]
+            @owner.connection.execute(interpolate_sql(@reflection.options[:insert_sql], record))
+          else
+            columns = @owner.connection.columns(@reflection.options[:join_table], "#{@reflection.options[:join_table]} Columns")
+
+            attributes = columns.inject({}) do |attributes, column|
+              case column.name
+                when @reflection.primary_key_name
+                  attributes[column.name] = @owner.quoted_id
+                when @reflection.association_foreign_key
+                  attributes[column.name] = record.quoted_id
+                else
+                  if record.attributes.has_key?(column.name)
+                    value = @owner.send(:quote, record[column.name], column)
+                    attributes[column.name] = value unless value.nil?
+                  end
+              end
+              attributes
+            end
+
+            sql =
+              "INSERT INTO #{@reflection.options[:join_table]} (#{@owner.send(:quoted_column_names, attributes).join(', ')}) " +
+              "VALUES (#{attributes.values.join(', ')})"
+
+            @owner.connection.execute(sql)
+          end
+          
+          return true
+        end
+        
+        def delete_records(records)
+          if sql = @reflection.options[:delete_sql]
+            records.each { |record| @owner.connection.execute(interpolate_sql(sql, record)) }
+          else
+            ids = quoted_record_ids(records)
+            sql = "DELETE FROM #{@reflection.options[:join_table]} WHERE #{@reflection.primary_key_name} = #{@owner.quoted_id} AND #{@reflection.association_foreign_key} IN (#{ids})"
+            @owner.connection.execute(sql)
+          end
+        end
+        
+        def construct_sql
+          interpolate_sql_options!(@reflection.options, :finder_sql)
+
+          if @reflection.options[:finder_sql]
+            @finder_sql = @reflection.options[:finder_sql]
+          else
+            @finder_sql = "#{@reflection.options[:join_table]}.#{@reflection.primary_key_name} = #{@owner.quoted_id} "
+            @finder_sql << " AND (#{conditions})" if conditions
+          end
+
+          @join_sql = "INNER JOIN #{@reflection.options[:join_table]} ON #{@reflection.klass.table_name}.#{@reflection.klass.primary_key} = #{@reflection.options[:join_table]}.#{@reflection.association_foreign_key}"
+        end
+
+        # Join tables with additional columns on top of the two foreign keys must be considered ambigious unless a select
+        # clause has been explicitly defined. Otherwise you can get broken records back, if, say, the join column also has
+        # and id column, which will then overwrite the id column of the records coming back.
+        def finding_with_ambigious_select?(select_clause)
+          !select_clause && @owner.connection.columns(@reflection.options[:join_table], "Join Table Columns").size != 2
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/has_many_association.rb

@@ -0,0 +1,190 @@
+module ActiveRecord
+  module Associations
+    class HasManyAssociation < AssociationCollection #:nodoc:
+      def initialize(owner, reflection)
+        super
+        construct_sql
+      end
+
+      def build(attributes = {})
+        if attributes.is_a?(Array)
+          attributes.collect { |attr| build(attr) }
+        else
+          load_target
+          record = @reflection.klass.new(attributes)
+          set_belongs_to_association_for(record)
+          @target << record
+          record
+        end
+      end
+
+      # DEPRECATED.
+      def find_all(runtime_conditions = nil, orderings = nil, limit = nil, joins = nil)
+        if @reflection.options[:finder_sql]
+          @reflection.klass.find_by_sql(@finder_sql)
+        else
+          conditions = @finder_sql
+          conditions += " AND (#{sanitize_sql(runtime_conditions)})" if runtime_conditions
+          orderings ||= @reflection.options[:order]
+          @reflection.klass.find_all(conditions, orderings, limit, joins)
+        end
+      end
+
+      # DEPRECATED. Find the first associated record.  All arguments are optional.
+      def find_first(conditions = nil, orderings = nil)
+        find_all(conditions, orderings, 1).first
+      end
+
+      # Count the number of associated records. All arguments are optional.
+      def count(runtime_conditions = nil)
+        if @reflection.options[:counter_sql]
+          @reflection.klass.count_by_sql(@counter_sql)
+        elsif @reflection.options[:finder_sql]
+          @reflection.klass.count_by_sql(@finder_sql)
+        else
+          sql = @finder_sql
+          sql += " AND (#{sanitize_sql(runtime_conditions)})" if runtime_conditions
+          @reflection.klass.count(sql)
+        end
+      end
+
+      def find(*args)
+        options = Base.send(:extract_options_from_args!, args)
+
+        # If using a custom finder_sql, scan the entire collection.
+        if @reflection.options[:finder_sql]
+          expects_array = args.first.kind_of?(Array)
+          ids = args.flatten.compact.uniq
+
+          if ids.size == 1
+            id = ids.first
+            record = load_target.detect { |record| id == record.id }
+            expects_array ? [ record ] : record
+          else
+            load_target.select { |record| ids.include?(record.id) }
+          end
+        else
+          conditions = "#{@finder_sql}"
+          if sanitized_conditions = sanitize_sql(options[:conditions])
+            conditions << " AND (#{sanitized_conditions})"
+          end
+          options[:conditions] = conditions
+
+          if options[:order] && @reflection.options[:order]
+            options[:order] = "#{options[:order]}, #{@reflection.options[:order]}"
+          elsif @reflection.options[:order]
+            options[:order] = @reflection.options[:order]
+          end
+
+          merge_options_from_reflection!(options)
+
+          # Pass through args exactly as we received them.
+          args << options
+          @reflection.klass.find(*args)
+        end
+      end
+      
+      protected
+        def method_missing(method, *args, &block)
+          if @target.respond_to?(method) || (!@reflection.klass.respond_to?(method) && Class.respond_to?(method))
+            super
+          else
+            @reflection.klass.with_scope(
+              :find => {
+                :conditions => @finder_sql, 
+                :joins      => @join_sql, 
+                :readonly   => false
+              },
+              :create => {
+                @reflection.primary_key_name => @owner.id
+              }
+            ) do
+              @reflection.klass.send(method, *args, &block)
+            end
+          end
+        end
+            
+        def find_target
+          if @reflection.options[:finder_sql]
+            @reflection.klass.find_by_sql(@finder_sql)
+          else
+            find(:all)
+          end
+        end
+
+        def count_records
+          count = if has_cached_counter?
+            @owner.send(:read_attribute, cached_counter_attribute_name)
+          elsif @reflection.options[:counter_sql]
+            @reflection.klass.count_by_sql(@counter_sql)
+          else
+            @reflection.klass.count(@counter_sql)
+          end
+          
+          @target = [] and loaded if count == 0
+          
+          if @reflection.options[:limit]
+            count = [ @reflection.options[:limit], count ].min
+          end
+          
+          return count
+        end
+
+        def has_cached_counter?
+          @owner.attribute_present?(cached_counter_attribute_name)
+        end
+
+        def cached_counter_attribute_name
+          "#{@reflection.name}_count"
+        end
+
+        def insert_record(record)
+          set_belongs_to_association_for(record)
+          record.save
+        end
+
+        def delete_records(records)
+          if @reflection.options[:dependent]
+            records.each { |r| r.destroy }
+          else
+            ids = quoted_record_ids(records)
+            @reflection.klass.update_all(
+              "#{@reflection.primary_key_name} = NULL", 
+              "#{@reflection.primary_key_name} = #{@owner.quoted_id} AND #{@reflection.klass.primary_key} IN (#{ids})"
+            )
+          end
+        end
+
+        def target_obsolete?
+          false
+        end
+
+        def construct_sql
+          case
+            when @reflection.options[:finder_sql]
+              @finder_sql = interpolate_sql(@reflection.options[:finder_sql])
+
+            when @reflection.options[:as]
+              @finder_sql = 
+                "#{@reflection.klass.table_name}.#{@reflection.options[:as]}_id = #{@owner.quoted_id} AND " + 
+                "#{@reflection.klass.table_name}.#{@reflection.options[:as]}_type = #{@owner.class.quote @owner.class.base_class.name.to_s}"
+              @finder_sql << " AND (#{conditions})" if conditions
+            
+            else
+              @finder_sql = "#{@reflection.klass.table_name}.#{@reflection.primary_key_name} = #{@owner.quoted_id}"
+              @finder_sql << " AND (#{conditions})" if conditions
+          end
+
+          if @reflection.options[:counter_sql]
+            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
+          elsif @reflection.options[:finder_sql]
+            # replace the SELECT clause with COUNT(*), preserving any hints within /* ... */
+            @reflection.options[:counter_sql] = @reflection.options[:finder_sql].sub(/SELECT (\/\*.*?\*\/ )?(.*)\bFROM\b/im) { "SELECT #{$1}COUNT(*) FROM" }
+            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
+          else
+            @counter_sql = @finder_sql
+          end
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/has_many_through_association.rb

@@ -0,0 +1,147 @@
+module ActiveRecord
+  module Associations
+    class HasManyThroughAssociation < AssociationProxy #:nodoc:
+      def initialize(owner, reflection)
+        super
+        reflection.check_validity!
+        @finder_sql = construct_conditions
+        construct_sql
+      end
+
+
+      def find(*args)
+        options = Base.send(:extract_options_from_args!, args)
+
+        conditions = "#{@finder_sql}"
+        if sanitized_conditions = sanitize_sql(options[:conditions])
+          conditions << " AND (#{sanitized_conditions})"
+        end
+        options[:conditions] = conditions
+
+        if options[:order] && @reflection.options[:order]
+          options[:order] = "#{options[:order]}, #{@reflection.options[:order]}"
+        elsif @reflection.options[:order]
+          options[:order] = @reflection.options[:order]
+        end
+        
+        options[:select]  = construct_select(options[:select])
+        options[:from]  ||= construct_from
+        options[:joins]   = construct_joins(options[:joins])
+        options[:include] = @reflection.source_reflection.options[:include] if options[:include].nil?
+        
+        merge_options_from_reflection!(options)
+
+        # Pass through args exactly as we received them.
+        args << options
+        @reflection.klass.find(*args)
+      end
+
+      def reset
+        @target = []
+        @loaded = false
+      end
+
+      protected
+        def method_missing(method, *args, &block)
+          if @target.respond_to?(method) || (!@reflection.klass.respond_to?(method) && Class.respond_to?(method))
+            super
+          else
+            @reflection.klass.with_scope(construct_scope) { @reflection.klass.send(method, *args, &block) }
+          end
+        end
+            
+        def find_target
+          @reflection.klass.find(:all, 
+            :select     => construct_select,
+            :conditions => construct_conditions,
+            :from       => construct_from,
+            :joins      => construct_joins,
+            :order      => @reflection.options[:order], 
+            :limit      => @reflection.options[:limit],
+            :group      => @reflection.options[:group],
+            :include    => @reflection.options[:include] || @reflection.source_reflection.options[:include]
+          )
+        end
+
+        def construct_conditions
+          conditions = if @reflection.through_reflection.options[:as]
+              "#{@reflection.through_reflection.table_name}.#{@reflection.through_reflection.options[:as]}_id = #{@owner.quoted_id} " + 
+              "AND #{@reflection.through_reflection.table_name}.#{@reflection.through_reflection.options[:as]}_type = #{@owner.class.quote @owner.class.base_class.name.to_s}"
+          else
+            "#{@reflection.through_reflection.table_name}.#{@reflection.through_reflection.primary_key_name} = #{@owner.quoted_id}"
+          end
+          conditions << " AND (#{sql_conditions})" if sql_conditions
+          
+          return conditions
+        end
+
+        def construct_from
+          @reflection.table_name
+        end
+        
+        def construct_select(custom_select = nil)
+          selected = custom_select || @reflection.options[:select] || "#{@reflection.table_name}.*"          
+        end
+        
+        def construct_joins(custom_joins = nil)          
+          polymorphic_join = nil
+          if @reflection.through_reflection.options[:as] || @reflection.source_reflection.macro == :belongs_to
+            reflection_primary_key = @reflection.klass.primary_key
+            source_primary_key     = @reflection.source_reflection.primary_key_name
+          else
+            reflection_primary_key = @reflection.source_reflection.primary_key_name
+            source_primary_key     = @reflection.klass.primary_key
+            if @reflection.source_reflection.options[:as]
+              polymorphic_join = "AND %s.%s = %s" % [
+                @reflection.table_name, "#{@reflection.source_reflection.options[:as]}_type",
+                @owner.class.quote(@reflection.through_reflection.klass.name)
+              ]
+            end
+          end
+
+          "INNER JOIN %s ON %s.%s = %s.%s %s #{@reflection.options[:joins]} #{custom_joins}" % [
+            @reflection.through_reflection.table_name,
+            @reflection.table_name, reflection_primary_key,
+            @reflection.through_reflection.table_name, source_primary_key,
+            polymorphic_join
+          ]
+        end
+        
+        def construct_scope
+          {
+            :find   => { :from => construct_from, :conditions => construct_conditions, :joins => construct_joins, :select => construct_select },
+            :create => { @reflection.primary_key_name => @owner.id }
+          }
+        end
+        
+        def construct_sql
+          case
+            when @reflection.options[:finder_sql]
+              @finder_sql = interpolate_sql(@reflection.options[:finder_sql])
+
+              @finder_sql = "#{@reflection.klass.table_name}.#{@reflection.primary_key_name} = #{@owner.quoted_id}"
+              @finder_sql << " AND (#{conditions})" if conditions
+          end
+
+          if @reflection.options[:counter_sql]
+            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
+          elsif @reflection.options[:finder_sql]
+            # replace the SELECT clause with COUNT(*), preserving any hints within /* ... */
+            @reflection.options[:counter_sql] = @reflection.options[:finder_sql].sub(/SELECT (\/\*.*?\*\/ )?(.*)\bFROM\b/im) { "SELECT #{$1}COUNT(*) FROM" }
+            @counter_sql = interpolate_sql(@reflection.options[:counter_sql])
+          else
+            @counter_sql = @finder_sql
+          end
+        end
+        
+        def conditions
+          @conditions ||= [
+            (interpolate_sql(@reflection.active_record.send(:sanitize_sql, @reflection.options[:conditions])) if @reflection.options[:conditions]),
+            (interpolate_sql(@reflection.active_record.send(:sanitize_sql, @reflection.through_reflection.options[:conditions])) if @reflection.through_reflection.options[:conditions])
+          ].compact.collect { |condition| "(#{condition})" }.join(' AND ') unless (!@reflection.options[:conditions] && !@reflection.through_reflection.options[:conditions])
+        end
+        
+        alias_method :sql_conditions, :conditions
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/associations/has_one_association.rb

@@ -0,0 +1,80 @@
+module ActiveRecord
+  module Associations
+    class HasOneAssociation < BelongsToAssociation #:nodoc:
+      def initialize(owner, reflection)
+        super
+        construct_sql
+      end
+
+      def create(attributes = {}, replace_existing = true)
+        record = build(attributes, replace_existing)
+        record.save
+        record
+      end
+
+      def build(attributes = {}, replace_existing = true)
+        record = @reflection.klass.new(attributes)
+
+        if replace_existing
+          replace(record, true) 
+        else
+          record[@reflection.primary_key_name] = @owner.id unless @owner.new_record?
+          self.target = record
+        end
+
+        record
+      end
+
+      def replace(obj, dont_save = false)
+        load_target
+
+        unless @target.nil?
+          if dependent? && !dont_save && @target != obj
+            @target.destroy unless @target.new_record?
+            @owner.clear_association_cache
+          else
+            @target[@reflection.primary_key_name] = nil
+            @target.save unless @owner.new_record? || @target.new_record?
+          end
+        end
+
+        if obj.nil?
+          @target = nil
+        else
+          raise_on_type_mismatch(obj)
+          set_belongs_to_association_for(obj)
+          @target = (AssociationProxy === obj ? obj.target : obj)
+        end
+
+        @loaded = true
+
+        unless @owner.new_record? or obj.nil? or dont_save
+          return (obj.save ? self : false)
+        else
+          return (obj.nil? ? nil : self)
+        end
+      end
+            
+      private
+        def find_target
+          @reflection.klass.find(:first, 
+            :conditions => @finder_sql, 
+            :order      => @reflection.options[:order], 
+            :include    => @reflection.options[:include]
+          )
+        end
+
+        def construct_sql
+          case
+            when @reflection.options[:as]
+              @finder_sql = 
+                "#{@reflection.klass.table_name}.#{@reflection.options[:as]}_id = #{@owner.quoted_id} AND " + 
+                "#{@reflection.klass.table_name}.#{@reflection.options[:as]}_type = #{@owner.class.quote @owner.class.base_class.name.to_s}"          
+            else
+              @finder_sql = "#{@reflection.table_name}.#{@reflection.primary_key_name} = #{@owner.quoted_id}"
+          end
+          @finder_sql << " AND (#{conditions})" if conditions
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/calculations.rb

@@ -0,0 +1,229 @@
+module ActiveRecord
+  module Calculations #:nodoc:
+    CALCULATIONS_OPTIONS = [:conditions, :joins, :order, :select, :group, :having, :distinct, :limit, :offset]
+    def self.included(base)
+      base.extend(ClassMethods)
+    end
+
+    module ClassMethods
+      # Count operates using three different approaches. 
+      #
+      # * Count all: By not passing any parameters to count, it will return a count of all the rows for the model.
+      # * Count by conditions or joins: For backwards compatibility, you can pass in +conditions+ and +joins+ as individual parameters.
+      # * Count using options will find the row count matched by the options used.
+      #
+      # The last approach, count using options, accepts an option hash as the only parameter. The options are:
+      #
+      # * <tt>:conditions</tt>: An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro.
+      # * <tt>:joins</tt>: An SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id". (Rarely needed).
+      #   The records will be returned read-only since they will have attributes that do not correspond to the table's columns.
+      # * <tt>:include</tt>: Named associations that should be loaded alongside using LEFT OUTER JOINs. The symbols named refer
+      #   to already defined associations. When using named associations count returns the number DISTINCT items for the model you're counting.
+      #   See eager loading under Associations.
+      # * <tt>:order</tt>: An SQL fragment like "created_at DESC, name" (really only used with GROUP BY calculations).
+      # * <tt>:group</tt>: An attribute name by which the result should be grouped. Uses the GROUP BY SQL-clause.
+      # * <tt>:select</tt>: By default, this is * as in SELECT * FROM, but can be changed if you for example want to do a join, but not
+      #   include the joined columns.
+      # * <tt>:distinct</tt>: Set this to true to make this a distinct calculation, such as SELECT COUNT(DISTINCT posts.id) ...
+      #
+      # Examples for counting all:
+      #   Person.count         # returns the total count of all people
+      #
+      # Examples for count by +conditions+ and +joins+ (for backwards compatibility):
+      #   Person.count("age > 26")  # returns the number of people older than 26
+      #   Person.find("age > 26 AND job.salary > 60000", "LEFT JOIN jobs on jobs.person_id = person.id") # returns the total number of rows matching the conditions and joins fetched by SELECT COUNT(*).
+      #
+      # Examples for count with options:
+      #   Person.count(:conditions => "age > 26")
+      #   Person.count(:conditions => "age > 26 AND job.salary > 60000", :include => :job) # because of the named association, it finds the DISTINCT count using LEFT OUTER JOIN.
+      #   Person.count(:conditions => "age > 26 AND job.salary > 60000", :joins => "LEFT JOIN jobs on jobs.person_id = person.id") # finds the number of rows matching the conditions and joins. 
+      #   Person.count('id', :conditions => "age > 26") # Performs a COUNT(id)
+      #   Person.count(:all, :conditions => "age > 26") # Performs a COUNT(*) (:all is an alias for '*')
+      #
+      # Note: Person.count(:all) will not work because it will use :all as the condition.  Use Person.count instead.
+      def count(*args)
+        options     = {}
+        column_name = :all
+        # For backwards compatibility, we need to handle both count(conditions=nil, joins=nil) or count(options={}) or count(column_name=:all, options={}).
+        if args.size >= 0 && args.size <= 2
+          if args.first.is_a?(Hash)
+            options     = args.first
+          elsif args[1].is_a?(Hash)
+            options     = args[1]
+            column_name = args.first
+          else
+            # Handle legacy paramter options: def count(conditions=nil, joins=nil)
+            options.merge!(:conditions => args[0]) if args.length > 0
+            options.merge!(:joins => args[1])      if args.length > 1
+          end
+        else
+          raise(ArgumentError, "Unexpected parameters passed to count(*args): expected either count(conditions=nil, joins=nil) or count(options={})")
+        end
+
+        if options[:include] || scope(:find, :include)
+          count_with_associations(options)
+        else
+          calculate(:count, column_name, options)
+        end
+      end
+
+      # Calculates average value on a given column.  The value is returned as a float.  See #calculate for examples with options.
+      #
+      #   Person.average('age')
+      def average(column_name, options = {})
+        calculate(:avg, column_name, options)
+      end
+
+      # Calculates the minimum value on a given column.  The value is returned with the same data type of the column..  See #calculate for examples with options.
+      #
+      #   Person.minimum('age')
+      def minimum(column_name, options = {})
+        calculate(:min, column_name, options)
+      end
+
+      # Calculates the maximum value on a given column.  The value is returned with the same data type of the column..  See #calculate for examples with options.
+      #
+      #   Person.maximum('age')
+      def maximum(column_name, options = {})
+        calculate(:max, column_name, options)
+      end
+
+      # Calculates the sum value on a given column.  The value is returned with the same data type of the column..  See #calculate for examples with options.
+      #
+      #   Person.sum('age')
+      def sum(column_name, options = {})
+        calculate(:sum, column_name, options)
+      end
+
+      # This calculates aggregate values in the given column:  Methods for count, sum, average, minimum, and maximum have been added as shortcuts.
+      # Options such as :conditions, :order, :group, :having, and :joins can be passed to customize the query.  
+      #
+      # There are two basic forms of output:
+      #   * Single aggregate value: The single value is type cast to Fixnum for COUNT, Float for AVG, and the given column's type for everything else.
+      #   * Grouped values: This returns an ordered hash of the values and groups them by the :group option.  It takes either a column name, or the name 
+      #     of a belongs_to association.
+      #
+      #       values = Person.maximum(:age, :group => 'last_name')
+      #       puts values["Drake"]
+      #       => 43
+      #
+      #       drake  = Family.find_by_last_name('Drake')
+      #       values = Person.maximum(:age, :group => :family) # Person belongs_to :family
+      #       puts values[drake]
+      #       => 43
+      #
+      #       values.each do |family, max_age|
+      #       ...
+      #       end
+      #
+      # Options:
+      # * <tt>:conditions</tt>: An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro.
+      # * <tt>:joins</tt>: An SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id". (Rarely needed).
+      #   The records will be returned read-only since they will have attributes that do not correspond to the table's columns.
+      # * <tt>:order</tt>: An SQL fragment like "created_at DESC, name" (really only used with GROUP BY calculations).
+      # * <tt>:group</tt>: An attribute name by which the result should be grouped. Uses the GROUP BY SQL-clause.
+      # * <tt>:select</tt>: By default, this is * as in SELECT * FROM, but can be changed if you for example want to do a join, but not
+      #   include the joined columns.
+      # * <tt>:distinct</tt>: Set this to true to make this a distinct calculation, such as SELECT COUNT(DISTINCT posts.id) ...
+      #
+      # Examples:
+      #   Person.calculate(:count, :all) # The same as Person.count
+      #   Person.average(:age) # SELECT AVG(age) FROM people...
+      #   Person.minimum(:age, :conditions => ['last_name != ?', 'Drake']) # Selects the minimum age for everyone with a last name other than 'Drake'
+      #   Person.minimum(:age, :having => 'min(age) > 17', :group => :last_name) # Selects the minimum age for any family without any minors
+      def calculate(operation, column_name, options = {})
+        validate_calculation_options(operation, options)
+        column_name     = options[:select] if options[:select]
+        column_name     = '*' if column_name == :all
+        column          = column_for column_name
+        aggregate       = select_aggregate(operation, column_name, options)
+        aggregate_alias = column_alias_for(operation, column_name)
+        if options[:group]
+          execute_grouped_calculation(operation, column_name, column, aggregate, aggregate_alias, options)
+        else
+          execute_simple_calculation(operation, column_name, column, aggregate, aggregate_alias, options)
+        end
+      end
+
+      protected
+        def construct_calculation_sql(aggregate, aggregate_alias, options) #:nodoc:
+          scope = scope(:find)
+          sql  = "SELECT #{aggregate} AS #{aggregate_alias}"
+          sql << ", #{options[:group_field]} AS #{options[:group_alias]}" if options[:group]
+          sql << " FROM #{table_name} "
+          add_joins!(sql, options, scope)
+          add_conditions!(sql, options[:conditions], scope)
+          sql << " GROUP BY #{options[:group_field]}" if options[:group]
+          sql << " HAVING #{options[:having]}" if options[:group] && options[:having]
+          sql << " ORDER BY #{options[:order]}" if options[:order]
+          add_limit!(sql, options)
+          sql
+        end
+
+        def execute_simple_calculation(operation, column_name, column, aggregate, aggregate_alias, options) #:nodoc:
+          value     = connection.select_value(construct_calculation_sql(aggregate, aggregate_alias, options))
+          type_cast_calculated_value(value, column, operation)
+        end
+
+        def execute_grouped_calculation(operation, column_name, column, aggregate, aggregate_alias, options) #:nodoc:
+          group_attr      = options[:group].to_s
+          association     = reflect_on_association(group_attr.to_sym)
+          associated      = association && association.macro == :belongs_to # only count belongs_to associations
+          group_field     = (associated ? "#{options[:group]}_id" : options[:group]).to_s
+          group_alias     = column_alias_for(group_field)
+          group_column    = column_for group_field
+          sql             = construct_calculation_sql(aggregate, aggregate_alias, options.merge(:group_field => group_field, :group_alias => group_alias))
+          calculated_data = connection.select_all(sql)
+
+          if association
+            key_ids     = calculated_data.collect { |row| row[group_alias] }
+            key_records = association.klass.base_class.find(key_ids)
+            key_records = key_records.inject({}) { |hsh, r| hsh.merge(r.id => r) }
+          end
+
+          calculated_data.inject(OrderedHash.new) do |all, row|
+            key   = associated ? key_records[row[group_alias].to_i] : type_cast_calculated_value(row[group_alias], group_column)
+            value = row[aggregate_alias]
+            all << [key, type_cast_calculated_value(value, column, operation)]
+          end
+        end
+
+      private
+        def validate_calculation_options(operation, options = {})
+          if operation.to_s == 'count'
+            options.assert_valid_keys(CALCULATIONS_OPTIONS + [:include])
+          else
+            options.assert_valid_keys(CALCULATIONS_OPTIONS)
+          end
+        end
+
+        def select_aggregate(operation, column_name, options)
+          "#{operation}(#{'DISTINCT ' if options[:distinct]}#{column_name})"
+        end
+
+        # converts a given key to the value that the database adapter returns as
+        #
+        #   users.id #=> users_id
+        #   sum(id) #=> sum_id
+        #   count(distinct users.id) #=> count_distinct_users_id
+        #   count(*) #=> count_all
+        def column_alias_for(*keys)
+          keys.join(' ').downcase.gsub(/\*/, 'all').gsub(/\W+/, ' ').strip.gsub(/ +/, '_')
+        end
+
+        def column_for(field)
+          field_name = field.to_s.split('.').last
+          columns.detect { |c| c.name.to_s == field_name }
+        end
+
+        def type_cast_calculated_value(value, column, operation = nil)
+          operation = operation.to_s.downcase
+          case operation
+            when 'count' then value.to_i
+            when 'avg'   then value.to_f
+            else column ? column.type_cast(value) : value
+          end
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/callbacks.rb

@@ -0,0 +1,378 @@
+require 'observer'
+
+module ActiveRecord
+  # Callbacks are hooks into the lifecycle of an Active Record object that allows you to trigger logic
+  # before or after an alteration of the object state. This can be used to make sure that associated and
+  # dependent objects are deleted when destroy is called (by overwriting before_destroy) or to massage attributes
+  # before they're validated (by overwriting before_validation). As an example of the callbacks initiated, consider
+  # the Base#save call:
+  #
+  # * (-) save
+  # * (-) valid?
+  # * (1) before_validation
+  # * (2) before_validation_on_create
+  # * (-) validate
+  # * (-) validate_on_create
+  # * (3) after_validation
+  # * (4) after_validation_on_create
+  # * (5) before_save
+  # * (6) before_create
+  # * (-) create
+  # * (7) after_create
+  # * (8) after_save
+  #
+  # That's a total of eight callbacks, which gives you immense power to react and prepare for each state in the
+  # Active Record lifecycle.
+  #
+  # Examples:
+  #   class CreditCard < ActiveRecord::Base
+  #     # Strip everything but digits, so the user can specify "555 234 34" or
+  #     # "5552-3434" or both will mean "55523434"
+  #     def before_validation_on_create
+  #       self.number = number.gsub(/[^0-9]/, "") if attribute_present?("number")
+  #     end
+  #   end
+  #
+  #   class Subscription < ActiveRecord::Base
+  #     before_create :record_signup
+  #
+  #     private
+  #       def record_signup
+  #         self.signed_up_on = Date.today
+  #       end
+  #   end
+  #
+  #   class Firm < ActiveRecord::Base
+  #     # Destroys the associated clients and people when the firm is destroyed
+  #     before_destroy { |record| Person.destroy_all "firm_id = #{record.id}"   }
+  #     before_destroy { |record| Client.destroy_all "client_of = #{record.id}" }
+  #   end
+  #
+  # == Inheritable callback queues
+  #
+  # Besides the overwriteable callback methods, it's also possible to register callbacks through the use of the callback macros.
+  # Their main advantage is that the macros add behavior into a callback queue that is kept intact down through an inheritance
+  # hierarchy. Example:
+  #
+  #   class Topic < ActiveRecord::Base
+  #     before_destroy :destroy_author
+  #   end
+  #
+  #   class Reply < Topic
+  #     before_destroy :destroy_readers
+  #   end
+  #
+  # Now, when Topic#destroy is run only +destroy_author+ is called. When Reply#destroy is run both +destroy_author+ and
+  # +destroy_readers+ is called. Contrast this to the situation where we've implemented the save behavior through overwriteable
+  # methods:
+  #
+  #   class Topic < ActiveRecord::Base
+  #     def before_destroy() destroy_author end
+  #   end
+  #
+  #   class Reply < Topic
+  #     def before_destroy() destroy_readers end
+  #   end
+  #
+  # In that case, Reply#destroy would only run +destroy_readers+ and _not_ +destroy_author+. So use the callback macros when
+  # you want to ensure that a certain callback is called for the entire hierarchy and the regular overwriteable methods when you
+  # want to leave it up to each descendent to decide whether they want to call +super+ and trigger the inherited callbacks.
+  #
+  # *IMPORTANT:* In order for inheritance to work for the callback queues, you must specify the callbacks before specifying the
+  # associations. Otherwise, you might trigger the loading of a child before the parent has registered the callbacks and they won't
+  # be inherited.
+  #
+  # == Types of callbacks
+  #
+  # There are four types of callbacks accepted by the callback macros: Method references (symbol), callback objects,
+  # inline methods (using a proc), and inline eval methods (using a string). Method references and callback objects are the
+  # recommended approaches, inline methods using a proc are sometimes appropriate (such as for creating mix-ins), and inline
+  # eval methods are deprecated.
+  #
+  # The method reference callbacks work by specifying a protected or private method available in the object, like this:
+  #
+  #   class Topic < ActiveRecord::Base
+  #     before_destroy :delete_parents
+  #
+  #     private
+  #       def delete_parents
+  #         self.class.delete_all "parent_id = #{id}"
+  #       end
+  #   end
+  #
+  # The callback objects have methods named after the callback called with the record as the only parameter, such as:
+  #
+  #   class BankAccount < ActiveRecord::Base
+  #     before_save      EncryptionWrapper.new("credit_card_number")
+  #     after_save       EncryptionWrapper.new("credit_card_number")
+  #     after_initialize EncryptionWrapper.new("credit_card_number")
+  #   end
+  #
+  #   class EncryptionWrapper
+  #     def initialize(attribute)
+  #       @attribute = attribute
+  #     end
+  #
+  #     def before_save(record)
+  #       record.credit_card_number = encrypt(record.credit_card_number)
+  #     end
+  #
+  #     def after_save(record)
+  #       record.credit_card_number = decrypt(record.credit_card_number)
+  #     end
+  #
+  #     alias_method :after_find, :after_save
+  #
+  #     private
+  #       def encrypt(value)
+  #         # Secrecy is committed
+  #       end
+  #
+  #       def decrypt(value)
+  #         # Secrecy is unveiled
+  #       end
+  #   end
+  #
+  # So you specify the object you want messaged on a given callback. When that callback is triggered, the object has
+  # a method by the name of the callback messaged.
+  #
+  # The callback macros usually accept a symbol for the method they're supposed to run, but you can also pass a "method string",
+  # which will then be evaluated within the binding of the callback. Example:
+  #
+  #   class Topic < ActiveRecord::Base
+  #     before_destroy 'self.class.delete_all "parent_id = #{id}"'
+  #   end
+  #
+  # Notice that single plings (') are used so the #{id} part isn't evaluated until the callback is triggered. Also note that these
+  # inline callbacks can be stacked just like the regular ones:
+  #
+  #   class Topic < ActiveRecord::Base
+  #     before_destroy 'self.class.delete_all "parent_id = #{id}"',
+  #                    'puts "Evaluated after parents are destroyed"'
+  #   end
+  #
+  # == The after_find and after_initialize exceptions
+  #
+  # Because after_find and after_initialize are called for each object found and instantiated by a finder, such as Base.find(:all), we've had
+  # to implement a simple performance constraint (50% more speed on a simple test case). Unlike all the other callbacks, after_find and
+  # after_initialize will only be run if an explicit implementation is defined (<tt>def after_find</tt>). In that case, all of the
+  # callback types will be called.
+  #
+  # == Cancelling callbacks
+  #
+  # If a before_* callback returns false, all the later callbacks and the associated action are cancelled. If an after_* callback returns
+  # false, all the later callbacks are cancelled. Callbacks are generally run in the order they are defined, with the exception of callbacks
+  # defined as methods on the model, which are called last.
+  module Callbacks
+    CALLBACKS = %w(
+      after_find after_initialize before_save after_save before_create after_create before_update after_update before_validation
+      after_validation before_validation_on_create after_validation_on_create before_validation_on_update
+      after_validation_on_update before_destroy after_destroy
+    )
+
+    def self.append_features(base) #:nodoc:
+      super
+
+      base.extend(ClassMethods)
+      base.class_eval do
+        class << self
+          include Observable
+          alias_method :instantiate_without_callbacks, :instantiate
+          alias_method :instantiate, :instantiate_with_callbacks
+        end
+
+        alias_method :initialize_without_callbacks, :initialize
+        alias_method :initialize, :initialize_with_callbacks
+
+        alias_method :create_or_update_without_callbacks, :create_or_update
+        alias_method :create_or_update, :create_or_update_with_callbacks
+
+        alias_method :valid_without_callbacks, :valid?
+        alias_method :valid?, :valid_with_callbacks
+
+        alias_method :create_without_callbacks, :create
+        alias_method :create, :create_with_callbacks
+
+        alias_method :update_without_callbacks, :update
+        alias_method :update, :update_with_callbacks
+
+        alias_method :destroy_without_callbacks, :destroy
+        alias_method :destroy, :destroy_with_callbacks
+      end
+
+      CALLBACKS.each do |method|
+        base.class_eval <<-"end_eval"
+          def self.#{method}(*callbacks, &block)
+            callbacks << block if block_given?
+            write_inheritable_array(#{method.to_sym.inspect}, callbacks)
+          end
+        end_eval
+      end
+    end
+
+    module ClassMethods #:nodoc:
+      def instantiate_with_callbacks(record)
+        object = instantiate_without_callbacks(record)
+
+        if object.respond_to_without_attributes?(:after_find)
+          object.send(:callback, :after_find)
+        end
+
+        if object.respond_to_without_attributes?(:after_initialize)
+          object.send(:callback, :after_initialize)
+        end
+
+        object
+      end
+    end
+
+    # Is called when the object was instantiated by one of the finders, like Base.find.
+    #def after_find() end
+
+    # Is called after the object has been instantiated by a call to Base.new.
+    #def after_initialize() end
+
+    def initialize_with_callbacks(attributes = nil) #:nodoc:
+      initialize_without_callbacks(attributes)
+      result = yield self if block_given?
+      callback(:after_initialize) if respond_to_without_attributes?(:after_initialize)
+      result
+    end
+
+    # Is called _before_ Base.save (regardless of whether it's a create or update save).
+    def before_save() end
+
+    # Is called _after_ Base.save (regardless of whether it's a create or update save).
+    #
+    #  class Contact < ActiveRecord::Base
+    #    after_save { logger.info( 'New contact saved!' ) }
+    #  end
+    def after_save()  end
+    def create_or_update_with_callbacks #:nodoc:
+      return false if callback(:before_save) == false
+      result = create_or_update_without_callbacks
+      callback(:after_save)
+      result
+    end
+
+    # Is called _before_ Base.save on new objects that haven't been saved yet (no record exists).
+    def before_create() end
+
+    # Is called _after_ Base.save on new objects that haven't been saved yet (no record exists).
+    def after_create() end
+    def create_with_callbacks #:nodoc:
+      return false if callback(:before_create) == false
+      result = create_without_callbacks
+      callback(:after_create)
+      result
+    end
+
+    # Is called _before_ Base.save on existing objects that have a record.
+    def before_update() end
+
+    # Is called _after_ Base.save on existing objects that have a record.
+    def after_update() end
+
+    def update_with_callbacks #:nodoc:
+      return false if callback(:before_update) == false
+      result = update_without_callbacks
+      callback(:after_update)
+      result
+    end
+
+    # Is called _before_ Validations.validate (which is part of the Base.save call).
+    def before_validation() end
+
+    # Is called _after_ Validations.validate (which is part of the Base.save call).
+    def after_validation() end
+
+    # Is called _before_ Validations.validate (which is part of the Base.save call) on new objects
+    # that haven't been saved yet (no record exists).
+    def before_validation_on_create() end
+
+    # Is called _after_ Validations.validate (which is part of the Base.save call) on new objects
+    # that haven't been saved yet (no record exists).
+    def after_validation_on_create()  end
+
+    # Is called _before_ Validations.validate (which is part of the Base.save call) on
+    # existing objects that have a record.
+    def before_validation_on_update() end
+
+    # Is called _after_ Validations.validate (which is part of the Base.save call) on
+    # existing objects that have a record.
+    def after_validation_on_update()  end
+
+    def valid_with_callbacks #:nodoc:
+      return false if callback(:before_validation) == false
+      if new_record? then result = callback(:before_validation_on_create) else result = callback(:before_validation_on_update) end
+      return false if result == false
+
+      result = valid_without_callbacks
+
+      callback(:after_validation)
+      if new_record? then callback(:after_validation_on_create) else callback(:after_validation_on_update) end
+
+      return result
+    end
+
+    # Is called _before_ Base.destroy.
+    #
+    # Note: If you need to _destroy_ or _nullify_ associated records first,
+    # use the _:dependent_ option on your associations.
+    def before_destroy() end
+
+    # Is called _after_ Base.destroy (and all the attributes have been frozen).
+    #
+    #  class Contact < ActiveRecord::Base
+    #    after_destroy { |record| logger.info( "Contact #{record.id} was destroyed." ) }
+    #  end
+    def after_destroy()  end
+    def destroy_with_callbacks #:nodoc:
+      return false if callback(:before_destroy) == false
+      result = destroy_without_callbacks
+      callback(:after_destroy)
+      result
+    end
+
+    private
+      def callback(method)
+        notify(method)
+
+        callbacks_for(method).each do |callback|
+          result = case callback
+            when Symbol
+              self.send(callback)
+            when String
+              eval(callback, binding)
+            when Proc, Method
+              callback.call(self)
+            else
+              if callback.respond_to?(method)
+                callback.send(method, self)
+              else
+                raise ActiveRecordError, "Callbacks must be a symbol denoting the method to call, a string to be evaluated, a block to be invoked, or an object responding to the callback method."
+              end
+          end
+          return false if result == false
+        end
+
+        result = send(method) if respond_to_without_attributes?(method)
+
+        return result
+      end
+
+      def callbacks_for(method)
+        self.class.read_inheritable_attribute(method.to_sym) or []
+      end
+
+      def invoke_and_notify(method)
+        notify(method)
+        send(method) if respond_to_without_attributes?(method)
+      end
+
+      def notify(method) #:nodoc:
+        self.class.changed
+        self.class.notify_observers(method, self)
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb

@@ -0,0 +1,268 @@
+require 'set'
+
+module ActiveRecord
+  class Base
+    class ConnectionSpecification #:nodoc:
+      attr_reader :config, :adapter_method
+      def initialize (config, adapter_method)
+        @config, @adapter_method = config, adapter_method
+      end
+    end
+
+    # Check for activity after at least +verification_timeout+ seconds.
+    # Defaults to 0 (always check.)
+    cattr_accessor :verification_timeout
+    @@verification_timeout = 0
+
+    # The class -> [adapter_method, config] map
+    @@defined_connections = {}
+
+    # The class -> thread id -> adapter cache. (class -> adapter if not allow_concurrency)
+    @@active_connections = {}
+
+    class << self
+      # Retrieve the connection cache.
+      def thread_safe_active_connections #:nodoc:
+        @@active_connections[Thread.current.object_id] ||= {}
+      end
+     
+      def single_threaded_active_connections #:nodoc:
+        @@active_connections
+      end
+     
+      # pick up the right active_connection method from @@allow_concurrency
+      if @@allow_concurrency
+        alias_method :active_connections, :thread_safe_active_connections
+      else
+        alias_method :active_connections, :single_threaded_active_connections
+      end
+     
+      # set concurrency support flag (not thread safe, like most of the methods in this file)
+      def allow_concurrency=(threaded) #:nodoc:
+        logger.debug "allow_concurrency=#{threaded}" if logger
+        return if @@allow_concurrency == threaded
+        clear_all_cached_connections!
+        @@allow_concurrency = threaded
+        method_prefix = threaded ? "thread_safe" : "single_threaded"
+        sing = (class << self; self; end)
+        [:active_connections, :scoped_methods].each do |method|
+          sing.send(:alias_method, method, "#{method_prefix}_#{method}")
+        end
+        log_connections if logger
+      end
+      
+      def active_connection_name #:nodoc:
+        @active_connection_name ||=
+           if active_connections[name] || @@defined_connections[name]
+             name
+           elsif self == ActiveRecord::Base
+             nil
+           else
+             superclass.active_connection_name
+           end
+      end
+
+      def clear_active_connection_name #:nodoc:
+        @active_connection_name = nil
+        subclasses.each { |klass| klass.clear_active_connection_name }
+      end
+
+      # Returns the connection currently associated with the class. This can
+      # also be used to "borrow" the connection to do database work unrelated
+      # to any of the specific Active Records.
+      def connection
+        if @active_connection_name && (conn = active_connections[@active_connection_name])
+          conn
+        else
+          # retrieve_connection sets the cache key.
+          conn = retrieve_connection
+          active_connections[@active_connection_name] = conn
+        end
+      end
+
+      # Clears the cache which maps classes to connections.
+      def clear_active_connections!
+        clear_cache!(@@active_connections) do |name, conn|
+          conn.disconnect!
+        end
+      end
+
+      # Verify active connections.
+      def verify_active_connections! #:nodoc:
+        if @@allow_concurrency
+          remove_stale_cached_threads!(@@active_connections) do |name, conn|
+            conn.disconnect!
+          end
+        end
+        
+        active_connections.each_value do |connection|
+          connection.verify!(@@verification_timeout)
+        end
+      end
+
+      private
+        def clear_cache!(cache, thread_id = nil, &block)
+          if cache
+            if @@allow_concurrency
+              thread_id ||= Thread.current.object_id
+              thread_cache, cache = cache, cache[thread_id]
+              return unless cache
+            end
+
+            cache.each(&block) if block_given?
+            cache.clear
+          end
+        ensure
+          if thread_cache && @@allow_concurrency
+            thread_cache.delete(thread_id)
+          end
+        end
+
+        # Remove stale threads from the cache.
+        def remove_stale_cached_threads!(cache, &block)
+          stale = Set.new(cache.keys)
+
+          Thread.list.each do |thread|
+            stale.delete(thread.object_id) if thread.alive?
+          end
+
+          stale.each do |thread_id|
+            clear_cache!(cache, thread_id, &block)
+          end
+        end
+        
+        def clear_all_cached_connections!
+          if @@allow_concurrency
+            @@active_connections.each_value do |connection_hash_for_thread|
+              connection_hash_for_thread.each_value {|conn| conn.disconnect! }
+              connection_hash_for_thread.clear
+            end
+          else
+            @@active_connections.each_value {|conn| conn.disconnect! }
+          end
+          @@active_connections.clear          
+        end
+    end
+
+    # Returns the connection currently associated with the class. This can
+    # also be used to "borrow" the connection to do database work that isn't
+    # easily done without going straight to SQL.
+    def connection
+      self.class.connection
+    end
+
+    # Establishes the connection to the database. Accepts a hash as input where
+    # the :adapter key must be specified with the name of a database adapter (in lower-case)
+    # example for regular databases (MySQL, Postgresql, etc):
+    #
+    #   ActiveRecord::Base.establish_connection(
+    #     :adapter  => "mysql",
+    #     :host     => "localhost",
+    #     :username => "myuser",
+    #     :password => "mypass",
+    #     :database => "somedatabase"
+    #   )
+    #
+    # Example for SQLite database:
+    #
+    #   ActiveRecord::Base.establish_connection(
+    #     :adapter => "sqlite",
+    #     :database  => "path/to/dbfile"
+    #   )
+    #
+    # Also accepts keys as strings (for parsing from yaml for example):
+    #   ActiveRecord::Base.establish_connection(
+    #     "adapter" => "sqlite",
+    #     "database"  => "path/to/dbfile"
+    #   )
+    #
+    # The exceptions AdapterNotSpecified, AdapterNotFound and ArgumentError
+    # may be returned on an error.
+    def self.establish_connection(spec = nil)
+      case spec
+        when nil
+          raise AdapterNotSpecified unless defined? RAILS_ENV
+          establish_connection(RAILS_ENV)
+        when ConnectionSpecification
+          clear_active_connection_name
+          @active_connection_name = name
+          @@defined_connections[name] = spec
+        when Symbol, String
+          if configuration = configurations[spec.to_s]
+            establish_connection(configuration)
+          else
+            raise AdapterNotSpecified, "#{spec} database is not configured"
+          end
+        else
+          spec = spec.symbolize_keys
+          unless spec.key?(:adapter) then raise AdapterNotSpecified, "database configuration does not specify adapter" end
+          adapter_method = "#{spec[:adapter]}_connection"
+          unless respond_to?(adapter_method) then raise AdapterNotFound, "database configuration specifies nonexistent #{spec[:adapter]} adapter" end
+          remove_connection
+          establish_connection(ConnectionSpecification.new(spec, adapter_method))
+      end
+    end
+
+    # Locate the connection of the nearest super class. This can be an
+    # active or defined connections: if it is the latter, it will be
+    # opened and set as the active connection for the class it was defined
+    # for (not necessarily the current class).
+    def self.retrieve_connection #:nodoc:
+      # Name is nil if establish_connection hasn't been called for
+      # some class along the inheritance chain up to AR::Base yet.
+      if name = active_connection_name
+        if conn = active_connections[name]
+          # Verify the connection.
+          conn.verify!(@@verification_timeout)
+        elsif spec = @@defined_connections[name]
+          # Activate this connection specification.
+          klass = name.constantize
+          klass.connection = spec
+          conn = active_connections[name]
+        end
+      end
+
+      conn or raise ConnectionNotEstablished
+    end
+
+    # Returns true if a connection that's accessible to this class have already been opened.
+    def self.connected?
+      active_connections[active_connection_name] ? true : false
+    end
+
+    # Remove the connection for this class. This will close the active
+    # connection and the defined connection (if they exist). The result
+    # can be used as argument for establish_connection, for easy
+    # re-establishing of the connection.
+    def self.remove_connection(klass=self)
+      spec = @@defined_connections[klass.name]
+      konn = active_connections[klass.name]
+      @@defined_connections.delete_if { |key, value| value == spec }
+      active_connections.delete_if { |key, value| value == konn }
+      konn.disconnect! if konn
+      spec.config if spec
+    end
+
+    # Set the connection for the class.
+    def self.connection=(spec) #:nodoc:
+      if spec.kind_of?(ActiveRecord::ConnectionAdapters::AbstractAdapter)
+        active_connections[name] = spec
+      elsif spec.kind_of?(ConnectionSpecification)
+        self.connection = self.send(spec.adapter_method, spec.config)
+      elsif spec.nil?
+        raise ConnectionNotEstablished
+      else
+        establish_connection spec
+      end
+    end
+
+    # connection state logging
+    def self.log_connections #:nodoc:
+      if logger
+        logger.info "Defined connections: #{@@defined_connections.inspect}"
+        logger.info "Active connections: #{active_connections.inspect}"
+        logger.info "Active connection name: #{@active_connection_name}"
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb

@@ -0,0 +1,104 @@
+module ActiveRecord
+  module ConnectionAdapters # :nodoc:
+    module DatabaseStatements
+      # Returns an array of record hashes with the column names as keys and
+      # column values as values.
+      def select_all(sql, name = nil)
+      end
+
+      # Returns a record hash with the column names as keys and column values
+      # as values.
+      def select_one(sql, name = nil)
+      end
+
+      # Returns a single value from a record
+      def select_value(sql, name = nil)
+        result = select_one(sql, name)
+        result.nil? ? nil : result.values.first
+      end
+
+      # Returns an array of the values of the first column in a select:
+      #   select_values("SELECT id FROM companies LIMIT 3") => [1,2,3]
+      def select_values(sql, name = nil)
+        result = select_all(sql, name)
+        result.map{ |v| v.values.first }
+      end
+
+      # Executes the SQL statement in the context of this connection.
+      # This abstract method raises a NotImplementedError.
+      def execute(sql, name = nil)
+        raise NotImplementedError, "execute is an abstract method"
+      end
+
+      # Returns the last auto-generated ID from the affected table.
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) end
+
+      # Executes the update statement and returns the number of rows affected.
+      def update(sql, name = nil) end
+
+      # Executes the delete statement and returns the number of rows affected.
+      def delete(sql, name = nil) end
+
+      # Wrap a block in a transaction.  Returns result of block.
+      def transaction(start_db_transaction = true)
+        transaction_open = false
+        begin
+          if block_given?
+            if start_db_transaction
+              begin_db_transaction 
+              transaction_open = true
+            end
+            yield
+          end
+        rescue Exception => database_transaction_rollback
+          if transaction_open
+            transaction_open = false
+            rollback_db_transaction
+          end
+          raise
+        end
+      ensure
+        commit_db_transaction if transaction_open
+      end
+
+      # Begins the transaction (and turns off auto-committing).
+      def begin_db_transaction()    end
+
+      # Commits the transaction (and turns on auto-committing).
+      def commit_db_transaction()   end
+
+      # Rolls back the transaction (and turns on auto-committing). Must be
+      # done if the transaction block raises an exception or returns false.
+      def rollback_db_transaction() end
+
+      # Alias for #add_limit_offset!.
+      def add_limit!(sql, options)
+        add_limit_offset!(sql, options) if options
+      end
+
+      # Appends +LIMIT+ and +OFFSET+ options to a SQL statement.
+      # This method *modifies* the +sql+ parameter.
+      # ===== Examples
+      #  add_limit_offset!('SELECT * FROM suppliers', {:limit => 10, :offset => 50})
+      # generates
+      #  SELECT * FROM suppliers LIMIT 10 OFFSET 50
+      def add_limit_offset!(sql, options)
+        if limit = options[:limit]
+          sql << " LIMIT #{limit}"
+          if offset = options[:offset]
+            sql << " OFFSET #{offset}"
+          end
+        end
+      end
+
+      def default_sequence_name(table, column)
+        nil
+      end
+
+      # Set the sequence to the max value of the table's column.
+      def reset_sequence!(table, column, sequence = nil)
+        # Do nothing by default.  Implement for PostgreSQL, Oracle, ...
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb

@@ -0,0 +1,51 @@
+module ActiveRecord
+  module ConnectionAdapters # :nodoc:
+    module Quoting
+      # Quotes the column value to help prevent
+      # {SQL injection attacks}[http://en.wikipedia.org/wiki/SQL_injection].
+      def quote(value, column = nil)
+        case value
+          when String
+            if column && column.type == :binary && column.class.respond_to?(:string_to_binary)
+              "'#{quote_string(column.class.string_to_binary(value))}'" # ' (for ruby-mode)
+            elsif column && [:integer, :float].include?(column.type) 
+              value.to_s
+            else
+              "'#{quote_string(value)}'" # ' (for ruby-mode)
+            end
+          when NilClass              then "NULL"
+          when TrueClass             then (column && column.type == :integer ? '1' : quoted_true)
+          when FalseClass            then (column && column.type == :integer ? '0' : quoted_false)
+          when Float, Fixnum, Bignum then value.to_s
+          when Date                  then "'#{value.to_s}'"
+          when Time, DateTime        then "'#{quoted_date(value)}'"
+          else                            "'#{quote_string(value.to_yaml)}'"
+        end
+      end
+
+      # Quotes a string, escaping any ' (single quote) and \ (backslash)
+      # characters.
+      def quote_string(s)
+        s.gsub(/\\/, '\&\&').gsub(/'/, "''") # ' (for ruby-mode)
+      end
+
+      # Returns a quoted form of the column name.  This is highly adapter
+      # specific.
+      def quote_column_name(name)
+        name
+      end
+
+      def quoted_true
+        "'t'"
+      end
+      
+      def quoted_false
+        "'f'"
+      end
+      
+      def quoted_date(value)
+        value.strftime("%Y-%m-%d %H:%M:%S")
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb

@@ -0,0 +1,259 @@
+require 'parsedate'
+
+module ActiveRecord
+  module ConnectionAdapters #:nodoc:
+    # An abstract definition of a column in a table.
+    class Column
+      attr_reader :name, :default, :type, :limit, :null, :sql_type
+      attr_accessor :primary
+
+      # Instantiates a new column in the table.
+      #
+      # +name+ is the column's name, as in <tt><b>supplier_id</b> int(11)</tt>.
+      # +default+ is the type-casted default value, such as <tt>sales_stage varchar(20) default <b>'new'</b></tt>.
+      # +sql_type+ is only used to extract the column's length, if necessary.  For example, <tt>company_name varchar(<b>60</b>)</tt>.
+      # +null+ determines if this column allows +NULL+ values.
+      def initialize(name, default, sql_type = nil, null = true)
+        @name, @type, @null = name, simplified_type(sql_type), null
+        @sql_type = sql_type
+        # have to do this one separately because type_cast depends on #type
+        @default = type_cast(default)
+        @limit   = extract_limit(sql_type) unless sql_type.nil?
+        @primary = nil
+        @text    = [:string, :text].include? @type
+        @number  = [:float, :integer].include? @type
+      end
+
+      def text?
+        @text
+      end
+
+      def number?
+        @number
+      end
+
+      # Returns the Ruby class that corresponds to the abstract data type.
+      def klass
+        case type
+          when :integer       then Fixnum
+          when :float         then Float
+          when :datetime      then Time
+          when :date          then Date
+          when :timestamp     then Time
+          when :time          then Time
+          when :text, :string then String
+          when :binary        then String
+          when :boolean       then Object
+        end
+      end
+
+      # Casts value (which is a String) to an appropriate instance.
+      def type_cast(value)
+        return nil if value.nil?
+        case type
+          when :string    then value
+          when :text      then value
+          when :integer   then value.to_i rescue value ? 1 : 0
+          when :float     then value.to_f
+          when :datetime  then self.class.string_to_time(value)
+          when :timestamp then self.class.string_to_time(value)
+          when :time      then self.class.string_to_dummy_time(value)
+          when :date      then self.class.string_to_date(value)
+          when :binary    then self.class.binary_to_string(value)
+          when :boolean   then self.class.value_to_boolean(value)
+          else value
+        end
+      end
+
+      def type_cast_code(var_name)
+        case type
+          when :string    then nil
+          when :text      then nil
+          when :integer   then "(#{var_name}.to_i rescue #{var_name} ? 1 : 0)"
+          when :float     then "#{var_name}.to_f"
+          when :datetime  then "#{self.class.name}.string_to_time(#{var_name})"
+          when :timestamp then "#{self.class.name}.string_to_time(#{var_name})"
+          when :time      then "#{self.class.name}.string_to_dummy_time(#{var_name})"
+          when :date      then "#{self.class.name}.string_to_date(#{var_name})"
+          when :binary    then "#{self.class.name}.binary_to_string(#{var_name})"
+          when :boolean   then "#{self.class.name}.value_to_boolean(#{var_name})"
+          else nil
+        end
+      end
+
+      # Returns the human name of the column name.
+      #
+      # ===== Examples
+      #  Column.new('sales_stage', ...).human_name #=> 'Sales stage'
+      def human_name
+        Base.human_attribute_name(@name)
+      end
+
+      # Used to convert from Strings to BLOBs
+      def self.string_to_binary(value)
+        value
+      end
+
+      # Used to convert from BLOBs to Strings
+      def self.binary_to_string(value)
+        value
+      end
+
+      def self.string_to_date(string)
+        return string unless string.is_a?(String)
+        date_array = ParseDate.parsedate(string)
+        # treat 0000-00-00 as nil
+        Date.new(date_array[0], date_array[1], date_array[2]) rescue nil
+      end
+
+      def self.string_to_time(string)
+        return string unless string.is_a?(String)
+        time_array = ParseDate.parsedate(string)[0..5]
+        # treat 0000-00-00 00:00:00 as nil
+        Time.send(Base.default_timezone, *time_array) rescue nil
+      end
+
+      def self.string_to_dummy_time(string)
+        return string unless string.is_a?(String)
+        time_array = ParseDate.parsedate(string)
+        # pad the resulting array with dummy date information
+        time_array[0] = 2000; time_array[1] = 1; time_array[2] = 1;
+        Time.send(Base.default_timezone, *time_array) rescue nil
+      end
+
+      # convert something to a boolean
+      def self.value_to_boolean(value)
+        return value if value==true || value==false
+        case value.to_s.downcase
+        when "true", "t", "1" then true
+        else false
+        end
+      end
+
+    private
+        def extract_limit(sql_type)
+          $1.to_i if sql_type =~ /\((.*)\)/
+        end
+
+        def simplified_type(field_type)
+          case field_type
+            when /int/i
+              :integer
+            when /float|double|decimal|numeric/i
+              :float
+            when /datetime/i
+              :datetime
+            when /timestamp/i
+              :timestamp
+            when /time/i
+              :time
+            when /date/i
+              :date
+            when /clob/i, /text/i
+              :text
+            when /blob/i, /binary/i
+              :binary
+            when /char/i, /string/i
+              :string
+            when /boolean/i
+              :boolean
+          end
+        end
+    end
+
+    class IndexDefinition < Struct.new(:table, :name, :unique, :columns) #:nodoc:
+    end
+
+    class ColumnDefinition < Struct.new(:base, :name, :type, :limit, :default, :null) #:nodoc:
+      def to_sql
+        column_sql = "#{base.quote_column_name(name)} #{type_to_sql(type.to_sym, limit)}"
+        add_column_options!(column_sql, :null => null, :default => default)
+        column_sql
+      end
+      alias to_s :to_sql
+
+      private
+        def type_to_sql(name, limit)
+          base.type_to_sql(name, limit) rescue name
+        end   
+
+        def add_column_options!(sql, options)
+          base.add_column_options!(sql, options.merge(:column => self))
+        end
+    end
+
+    # Represents a SQL table in an abstract way.
+    # Columns are stored as ColumnDefinition in the #columns attribute.
+    class TableDefinition
+      attr_accessor :columns
+
+      def initialize(base)
+        @columns = []
+        @base = base
+      end
+
+      # Appends a primary key definition to the table definition.
+      # Can be called multiple times, but this is probably not a good idea.
+      def primary_key(name)
+        column(name, native[:primary_key])
+      end
+
+      # Returns a ColumnDefinition for the column with name +name+.
+      def [](name)
+        @columns.find {|column| column.name.to_s == name.to_s}
+      end
+
+      # Instantiates a new column for the table.
+      # The +type+ parameter must be one of the following values:
+      # <tt>:primary_key</tt>, <tt>:string</tt>, <tt>:text</tt>,
+      # <tt>:integer</tt>, <tt>:float</tt>, <tt>:datetime</tt>,
+      # <tt>:timestamp</tt>, <tt>:time</tt>, <tt>:date</tt>,
+      # <tt>:binary</tt>, <tt>:boolean</tt>.
+      #
+      # Available options are (none of these exists by default):
+      # * <tt>:limit</tt>:
+      #   Requests a maximum column length (<tt>:string</tt>, <tt>:text</tt>,
+      #   <tt>:binary</tt> or <tt>:integer</tt> columns only)
+      # * <tt>:default</tt>:
+      #   The column's default value.  You cannot explicitely set the default
+      #   value to +NULL+.  Simply leave off this option if you want a +NULL+
+      #   default value.
+      # * <tt>:null</tt>:
+      #   Allows or disallows +NULL+ values in the column.  This option could
+      #   have been named <tt>:null_allowed</tt>.
+      #
+      # This method returns <tt>self</tt>.
+      #
+      # ===== Examples
+      #  # Assuming def is an instance of TableDefinition
+      #  def.column(:granted, :boolean)
+      #    #=> granted BOOLEAN
+      #
+      #  def.column(:picture, :binary, :limit => 2.megabytes)
+      #    #=> picture BLOB(2097152)
+      #
+      #  def.column(:sales_stage, :string, :limit => 20, :default => 'new', :null => false)
+      #    #=> sales_stage VARCHAR(20) DEFAULT 'new' NOT NULL
+      def column(name, type, options = {})
+        column = self[name] || ColumnDefinition.new(@base, name, type)
+        column.limit = options[:limit] || native[type.to_sym][:limit] if options[:limit] or native[type.to_sym]
+        column.default = options[:default]
+        column.null = options[:null]
+        @columns << column unless @columns.include? column
+        self
+      end
+
+      # Returns a String whose contents are the column definitions
+      # concatenated together.  This string can then be pre and appended to
+      # to generate the final SQL to create the table.
+      def to_sql
+        @columns * ', '
+      end
+
+      private
+        def native
+          @base.native_database_types
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb

@@ -0,0 +1,271 @@
+module ActiveRecord
+  module ConnectionAdapters # :nodoc:
+    module SchemaStatements
+      # Returns a Hash of mappings from the abstract data types to the native
+      # database types.  See TableDefinition#column for details on the recognized
+      # abstract data types.
+      def native_database_types
+        {}
+      end
+
+      # This is the maximum length a table alias can be
+      def table_alias_length
+        255
+      end
+
+      # Truncates a table alias according to the limits of the current adapter.  
+      def table_alias_for(table_name)
+        table_name[0..table_alias_length-1].gsub(/\./, '_')
+      end
+
+      # def tables(name = nil) end
+
+      # Returns an array of indexes for the given table.
+      # def indexes(table_name, name = nil) end
+
+      # Returns an array of Column objects for the table specified by +table_name+.
+      # See the concrete implementation for details on the expected parameter values.
+      def columns(table_name, name = nil) end
+
+      # Creates a new table
+      # There are two ways to work with #create_table.  You can use the block
+      # form or the regular form, like this:
+      #
+      # === Block form
+      #  # create_table() yields a TableDefinition instance
+      #  create_table(:suppliers) do |t|
+      #    t.column :name, :string, :limit => 60
+      #    # Other fields here
+      #  end
+      #
+      # === Regular form
+      #  create_table(:suppliers)
+      #  add_column(:suppliers, :name, :string, {:limit => 60})
+      #
+      # The +options+ hash can include the following keys:
+      # [<tt>:id</tt>]
+      #   Set to true or false to add/not add a primary key column
+      #   automatically.  Defaults to true.
+      # [<tt>:primary_key</tt>]
+      #   The name of the primary key, if one is to be added automatically.
+      #   Defaults to +id+.
+      # [<tt>:options</tt>]
+      #   Any extra options you want appended to the table definition.
+      # [<tt>:temporary</tt>]
+      #   Make a temporary table.
+      # [<tt>:force</tt>]
+      #   Set to true or false to drop the table before creating it.
+      #   Defaults to false.
+      #
+      # ===== Examples
+      # ====== Add a backend specific option to the generated SQL (MySQL)
+      #  create_table(:suppliers, :options => 'ENGINE=InnoDB DEFAULT CHARSET=utf8')
+      # generates:
+      #  CREATE TABLE suppliers (
+      #    id int(11) DEFAULT NULL auto_increment PRIMARY KEY
+      #  ) ENGINE=InnoDB DEFAULT CHARSET=utf8
+      #
+      # ====== Rename the primary key column
+      #  create_table(:objects, :primary_key => 'guid') do |t|
+      #    t.column :name, :string, :limit => 80
+      #  end
+      # generates:
+      #  CREATE TABLE objects (
+      #    guid int(11) DEFAULT NULL auto_increment PRIMARY KEY,
+      #    name varchar(80)
+      #  )
+      #
+      # ====== Do not add a primary key column
+      #  create_table(:categories_suppliers, :id => false) do |t|
+      #    t.column :category_id, :integer
+      #    t.column :supplier_id, :integer
+      #  end
+      # generates:
+      #  CREATE TABLE categories_suppliers_join (
+      #    category_id int,
+      #    supplier_id int
+      #  )
+      #
+      # See also TableDefinition#column for details on how to create columns.
+      def create_table(name, options = {})
+        table_definition = TableDefinition.new(self)
+        table_definition.primary_key(options[:primary_key] || "id") unless options[:id] == false
+
+        yield table_definition
+
+        if options[:force]
+          drop_table(name) rescue nil
+        end
+
+        create_sql = "CREATE#{' TEMPORARY' if options[:temporary]} TABLE "
+        create_sql << "#{name} ("
+        create_sql << table_definition.to_sql
+        create_sql << ") #{options[:options]}"
+        execute create_sql
+      end
+      
+      # Renames a table.
+      # ===== Example
+      #  rename_table('octopuses', 'octopi')
+      def rename_table(name, new_name)
+        raise NotImplementedError, "rename_table is not implemented"
+      end
+
+      # Drops a table from the database.
+      def drop_table(name)
+        execute "DROP TABLE #{name}"
+      end
+
+      # Adds a new column to the named table.
+      # See TableDefinition#column for details of the options you can use.
+      def add_column(table_name, column_name, type, options = {})
+        add_column_sql = "ALTER TABLE #{table_name} ADD #{quote_column_name(column_name)} #{type_to_sql(type, options[:limit])}"
+        add_column_options!(add_column_sql, options)
+        execute(add_column_sql)
+      end
+
+      # Removes the column from the table definition.
+      # ===== Examples
+      #  remove_column(:suppliers, :qualification)
+      def remove_column(table_name, column_name)
+        execute "ALTER TABLE #{table_name} DROP #{quote_column_name(column_name)}"
+      end
+
+      # Changes the column's definition according to the new options.
+      # See TableDefinition#column for details of the options you can use.
+      # ===== Examples
+      #  change_column(:suppliers, :name, :string, :limit => 80)
+      #  change_column(:accounts, :description, :text)
+      def change_column(table_name, column_name, type, options = {})
+        raise NotImplementedError, "change_column is not implemented"
+      end
+
+      # Sets a new default value for a column.  If you want to set the default
+      # value to +NULL+, you are out of luck.  You need to
+      # DatabaseStatements#execute the apppropriate SQL statement yourself.
+      # ===== Examples
+      #  change_column_default(:suppliers, :qualification, 'new')
+      #  change_column_default(:accounts, :authorized, 1)
+      def change_column_default(table_name, column_name, default)
+        raise NotImplementedError, "change_column_default is not implemented"
+      end
+
+      # Renames a column.
+      # ===== Example
+      #  rename_column(:suppliers, :description, :name)
+      def rename_column(table_name, column_name, new_column_name)
+        raise NotImplementedError, "rename_column is not implemented"
+      end
+
+      # Adds a new index to the table.  +column_name+ can be a single Symbol, or
+      # an Array of Symbols.
+      #
+      # The index will be named after the table and the first column names,
+      # unless you pass +:name+ as an option.
+      #
+      # When creating an index on multiple columns, the first column is used as a name
+      # for the index. For example, when you specify an index on two columns
+      # [+:first+, +:last+], the DBMS creates an index for both columns as well as an
+      # index for the first colum +:first+. Using just the first name for this index
+      # makes sense, because you will never have to create a singular index with this
+      # name.
+      #
+      # ===== Examples
+      # ====== Creating a simple index
+      #  add_index(:suppliers, :name)
+      # generates
+      #  CREATE INDEX suppliers_name_index ON suppliers(name)
+      # ====== Creating a unique index
+      #  add_index(:accounts, [:branch_id, :party_id], :unique => true)
+      # generates
+      #  CREATE UNIQUE INDEX accounts_branch_id_index ON accounts(branch_id, party_id)
+      # ====== Creating a named index
+      #  add_index(:accounts, [:branch_id, :party_id], :unique => true, :name => 'by_branch_party')
+      # generates
+      #  CREATE UNIQUE INDEX by_branch_party ON accounts(branch_id, party_id)
+      def add_index(table_name, column_name, options = {})
+        column_names = Array(column_name)
+        index_name   = index_name(table_name, :column => column_names.first)
+
+        if Hash === options # legacy support, since this param was a string
+          index_type = options[:unique] ? "UNIQUE" : ""
+          index_name = options[:name] || index_name
+        else
+          index_type = options
+        end
+        quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
+        execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{table_name} (#{quoted_column_names})"
+      end
+
+      # Remove the given index from the table.
+      #
+      # Remove the suppliers_name_index in the suppliers table (legacy support, use the second or third forms).
+      #   remove_index :suppliers, :name
+      # Remove the index named accounts_branch_id in the accounts table.
+      #   remove_index :accounts, :column => :branch_id
+      # Remove the index named by_branch_party in the accounts table.
+      #   remove_index :accounts, :name => :by_branch_party
+      #
+      # You can remove an index on multiple columns by specifying the first column.
+      #   add_index :accounts, [:username, :password]
+      #   remove_index :accounts, :username
+      def remove_index(table_name, options = {})
+        execute "DROP INDEX #{quote_column_name(index_name(table_name, options))} ON #{table_name}"
+      end
+
+      def index_name(table_name, options) #:nodoc:
+        if Hash === options # legacy support
+          if options[:column]
+            "#{table_name}_#{options[:column]}_index"
+          elsif options[:name]
+            options[:name]
+          else
+            raise ArgumentError, "You must specify the index name"
+          end
+        else
+          "#{table_name}_#{options}_index"
+        end
+      end
+
+      # Returns a string of <tt>CREATE TABLE</tt> SQL statement(s) for recreating the
+      # entire structure of the database.
+      def structure_dump
+      end
+
+      # Should not be called normally, but this operation is non-destructive.
+      # The migrations module handles this automatically.
+      def initialize_schema_information
+        begin
+          execute "CREATE TABLE #{ActiveRecord::Migrator.schema_info_table_name} (version #{type_to_sql(:integer)})"
+          execute "INSERT INTO #{ActiveRecord::Migrator.schema_info_table_name} (version) VALUES(0)"
+        rescue ActiveRecord::StatementInvalid
+          # Schema has been intialized
+        end
+      end
+
+      def dump_schema_information #:nodoc:
+        begin
+          if (current_schema = ActiveRecord::Migrator.current_version) > 0
+            return "INSERT INTO #{ActiveRecord::Migrator.schema_info_table_name} (version) VALUES (#{current_schema})" 
+          end
+        rescue ActiveRecord::StatementInvalid 
+          # No Schema Info
+        end
+      end
+
+
+      def type_to_sql(type, limit = nil) #:nodoc:
+        native = native_database_types[type]
+        limit ||= native[:limit]
+        column_type_sql = native[:name]
+        column_type_sql << "(#{limit})" if limit
+        column_type_sql
+      end            
+    
+      def add_column_options!(sql, options) #:nodoc:
+        sql << " DEFAULT #{quote(options[:default], options[:column])}" unless options[:default].nil?
+        sql << " NOT NULL" if options[:null] == false
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb

@@ -0,0 +1,153 @@
+require 'benchmark'
+require 'date'
+
+require 'active_record/connection_adapters/abstract/schema_definitions'
+require 'active_record/connection_adapters/abstract/schema_statements'
+require 'active_record/connection_adapters/abstract/database_statements'
+require 'active_record/connection_adapters/abstract/quoting'
+require 'active_record/connection_adapters/abstract/connection_specification'
+
+module ActiveRecord
+  module ConnectionAdapters # :nodoc:
+    # All the concrete database adapters follow the interface laid down in this class.
+    # You can use this interface directly by borrowing the database connection from the Base with
+    # Base.connection.
+    #
+    # Most of the methods in the adapter are useful during migrations.  Most
+    # notably, SchemaStatements#create_table, SchemaStatements#drop_table,
+    # SchemaStatements#add_index, SchemaStatements#remove_index,
+    # SchemaStatements#add_column, SchemaStatements#change_column and
+    # SchemaStatements#remove_column are very useful.
+    class AbstractAdapter
+      include Quoting, DatabaseStatements, SchemaStatements
+      @@row_even = true
+      
+      def initialize(connection, logger = nil) #:nodoc:
+        @connection, @logger = connection, logger
+        @runtime = 0
+        @last_verification = 0
+      end
+
+      # Returns the human-readable name of the adapter.  Use mixed case - one
+      # can always use downcase if needed.
+      def adapter_name
+        'Abstract'
+      end
+
+      # Does this adapter support migrations?  Backend specific, as the
+      # abstract adapter always returns +false+.
+      def supports_migrations?
+        false
+      end
+      
+      # Does this adapter support using DISTINCT within COUNT?  This is +true+
+      # for all adapters except sqlite.
+      def supports_count_distinct?
+        true
+      end
+
+      # Should primary key values be selected from their corresponding
+      # sequence before the insert statement?  If true, next_sequence_value
+      # is called before each insert to set the record's primary key.
+      # This is false for all adapters but Firebird.
+      def prefetch_primary_key?(table_name = nil)
+        false
+      end
+
+      def reset_runtime #:nodoc:
+        rt, @runtime = @runtime, 0
+        rt
+      end
+
+
+      # CONNECTION MANAGEMENT ====================================
+
+      # Is this connection active and ready to perform queries?
+      def active?
+        @active != false
+      end
+
+      # Close this connection and open a new one in its place.
+      def reconnect!
+        @active = true
+      end
+
+      # Close this connection
+      def disconnect!
+        @active = false
+      end
+
+      # Lazily verify this connection, calling +active?+ only if it hasn't
+      # been called for +timeout+ seconds.       
+      def verify!(timeout)
+        now = Time.now.to_i
+        if (now - @last_verification) > timeout
+          reconnect! unless active?
+          @last_verification = now
+        end
+      end
+      
+      # Provides access to the underlying database connection. Useful for
+      # when you need to call a proprietary method such as postgresql's lo_*
+      # methods
+      def raw_connection
+        @connection
+      end
+
+      protected
+        def log(sql, name)
+          if block_given?
+            if @logger and @logger.level <= Logger::INFO
+              result = nil
+              seconds = Benchmark.realtime { result = yield }
+              @runtime += seconds
+              log_info(sql, name, seconds)
+              result
+            else
+              yield
+            end
+          else
+            log_info(sql, name, 0)
+            nil
+          end
+        rescue Exception => e
+          # Log message and raise exception.
+          # Set last_verfication to 0, so that connection gets verified
+          # upon reentering the request loop
+          @last_verification = 0
+          message = "#{e.class.name}: #{e.message}: #{sql}"
+          log_info(message, name, 0)
+          raise ActiveRecord::StatementInvalid, message
+        end
+
+        def log_info(sql, name, runtime)
+          return unless @logger
+
+          @logger.debug(
+            format_log_entry(
+              "#{name.nil? ? "SQL" : name} (#{sprintf("%f", runtime)})",
+              sql.gsub(/ +/, " ")
+            )
+          )
+        end
+
+        def format_log_entry(message, dump = nil)
+          if ActiveRecord::Base.colorize_logging
+            if @@row_even
+              @@row_even = false
+              message_color, dump_color = "4;36;1", "0;1"
+            else
+              @@row_even = true
+              message_color, dump_color = "4;35;1", "0"
+            end
+
+            log_entry = "  \e[#{message_color}m#{message}\e[0m   "
+            log_entry << "\e[#{dump_color}m%#{String === dump ? 's' : 'p'}\e[0m" % dump if dump
+            log_entry
+          else
+            "%s  %s" % [message, dump]
+          end
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/db2_adapter.rb

@@ -0,0 +1,238 @@
+# Author/Maintainer: Maik Schmidt <contact@maik-schmidt.de>
+
+require 'active_record/connection_adapters/abstract_adapter'
+
+begin
+  require 'db2/db2cli' unless self.class.const_defined?(:DB2CLI)
+  require 'active_record/vendor/db2'
+
+  module ActiveRecord
+    class Base
+      # Establishes a connection to the database that's used by
+      # all Active Record objects
+      def self.db2_connection(config) # :nodoc:
+        config = config.symbolize_keys
+        usr = config[:username]
+        pwd = config[:password]
+        schema = config[:schema]
+
+        if config.has_key?(:database)
+          database = config[:database]
+        else
+          raise ArgumentError, 'No database specified. Missing argument: database.'
+        end
+
+        connection = DB2::Connection.new(DB2::Environment.new)
+        connection.connect(database, usr, pwd)
+        ConnectionAdapters::DB2Adapter.new(connection, logger, :schema => schema)
+      end
+    end
+
+    module ConnectionAdapters
+      # The DB2 adapter works with the C-based CLI driver (http://rubyforge.org/projects/ruby-dbi/)
+      #
+      # Options:
+      #
+      # * <tt>:username</tt> -- Defaults to nothing
+      # * <tt>:password</tt> -- Defaults to nothing
+      # * <tt>:database</tt> -- The name of the database. No default, must be provided.
+      # * <tt>:schema</tt> -- Database schema to be set initially.
+      class DB2Adapter < AbstractAdapter
+        def initialize(connection, logger, connection_options)
+          super(connection, logger)
+          @connection_options = connection_options
+          if schema = @connection_options[:schema]
+            with_statement do |stmt|
+              stmt.exec_direct("SET SCHEMA=#{schema}")
+            end
+          end
+        end
+        
+        def select_all(sql, name = nil)
+          select(sql, name)
+        end
+
+        def select_one(sql, name = nil)
+          select(sql, name).first
+        end
+
+        def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
+          execute(sql, name = nil)
+          id_value || last_insert_id
+        end
+
+        def execute(sql, name = nil)
+          rows_affected = 0
+          with_statement do |stmt|
+            log(sql, name) do
+              stmt.exec_direct(sql)
+              rows_affected = stmt.row_count
+            end
+          end
+          rows_affected
+        end
+
+        alias_method :update, :execute
+        alias_method :delete, :execute
+
+        def begin_db_transaction
+          @connection.set_auto_commit_off
+        end
+
+        def commit_db_transaction
+          @connection.commit
+          @connection.set_auto_commit_on
+        end
+        
+        def rollback_db_transaction
+          @connection.rollback
+          @connection.set_auto_commit_on
+        end
+
+        def quote_column_name(column_name)
+          column_name
+        end
+
+        def adapter_name()
+          'DB2'
+        end
+
+        def quote_string(string)
+          string.gsub(/'/, "''") # ' (for ruby-mode)
+        end
+
+        def add_limit_offset!(sql, options)
+          if limit = options[:limit]
+            offset = options[:offset] || 0
+            # The following trick was added by andrea+rails@webcom.it.
+            sql.gsub!(/SELECT/i, 'SELECT B.* FROM (SELECT A.*, row_number() over () AS internal$rownum FROM (SELECT')
+            sql << ") A ) B WHERE B.internal$rownum > #{offset} AND B.internal$rownum <= #{limit + offset}"
+          end
+        end
+
+        def tables(name = nil)
+          result = []
+          schema = @connection_options[:schema] || '%'
+          with_statement do |stmt|
+            stmt.tables(schema).each { |t| result << t[2].downcase }
+          end
+          result
+        end
+
+        def indexes(table_name, name = nil)
+          tmp = {}
+          schema = @connection_options[:schema] || ''
+          with_statement do |stmt|
+            stmt.indexes(table_name, schema).each do |t|
+              next unless t[5]
+              next if t[4] == 'SYSIBM' # Skip system indexes.
+              idx_name = t[5].downcase
+              col_name = t[8].downcase
+              if tmp.has_key?(idx_name)
+                tmp[idx_name].columns << col_name
+              else
+                is_unique = t[3] == 0
+                tmp[idx_name] = IndexDefinition.new(table_name, idx_name, is_unique, [col_name])
+              end
+            end
+          end
+          tmp.values
+        end
+
+        def columns(table_name, name = nil)
+          result = []
+          schema = @connection_options[:schema] || '%'
+          with_statement do |stmt|
+            stmt.columns(table_name, schema).each do |c| 
+              c_name = c[3].downcase
+              c_default = c[12] == 'NULL' ? nil : c[12]
+              c_default.gsub!(/^'(.*)'$/, '\1') if !c_default.nil?
+              c_type = c[5].downcase
+              c_type += "(#{c[6]})" if !c[6].nil? && c[6] != ''
+              result << Column.new(c_name, c_default, c_type, c[17] == 'YES')
+            end 
+          end
+          result
+        end
+
+        def native_database_types
+          {
+            :primary_key => 'int generated by default as identity (start with 42) primary key',
+            :string      => { :name => 'varchar', :limit => 255 },
+            :text        => { :name => 'clob', :limit => 32768 },
+            :integer     => { :name => 'int' },
+            :float       => { :name => 'float' },
+            :datetime    => { :name => 'timestamp' },
+            :timestamp   => { :name => 'timestamp' },
+            :time        => { :name => 'time' },
+            :date        => { :name => 'date' },
+            :binary      => { :name => 'blob', :limit => 32768 },
+            :boolean     => { :name => 'decimal', :limit => 1 }
+          }
+        end
+
+        def quoted_true
+          '1'
+        end
+
+        def quoted_false
+          '0'
+        end
+
+        def active?
+          @connection.select_one 'select 1 from ibm.sysdummy1'
+          true
+        rescue Exception
+          false
+        end
+
+        def reconnect!
+        end
+
+        def table_alias_length
+          128
+        end
+
+        private
+
+        def with_statement
+          stmt = DB2::Statement.new(@connection)
+          yield stmt
+          stmt.free
+        end
+
+        def last_insert_id
+          row = select_one(<<-GETID.strip)
+          with temp(id) as (values (identity_val_local())) select * from temp
+          GETID
+          row['id'].to_i
+        end
+
+        def select(sql, name = nil)
+          rows = []
+          with_statement do |stmt|
+            log(sql, name) do
+              stmt.exec_direct("#{sql.gsub(/=\s*null/i, 'IS NULL')} with ur")
+            end
+
+            while row = stmt.fetch_as_hash
+              row.delete('internal$rownum')
+              rows << row
+            end
+          end
+          rows
+        end
+      end
+    end
+  end
+rescue LoadError
+  # DB2 driver is unavailable.
+  module ActiveRecord # :nodoc:
+    class Base
+      def self.db2_connection(config) # :nodoc:
+        # Set up a reasonable error message
+        raise LoadError, "DB2 Libraries could not be loaded."
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/firebird_adapter.rb

@@ -0,0 +1,414 @@
+# Author: Ken Kunz <kennethkunz@gmail.com>
+
+require 'active_record/connection_adapters/abstract_adapter'
+
+module FireRuby # :nodoc: all
+  class Database
+    def self.new_from_params(database, host, port, service)
+      db_string = ""
+      if host
+        db_string << host
+        db_string << "/#{service || port}" if service || port
+        db_string << ":"
+      end
+      db_string << database
+      new(db_string)
+    end
+  end
+end
+
+module ActiveRecord
+  class << Base
+    def firebird_connection(config) # :nodoc:
+      require_library_or_gem 'fireruby'
+      unless defined? FireRuby::SQLType
+        raise AdapterNotFound,
+          'The Firebird adapter requires FireRuby version 0.4.0 or greater; you appear ' <<
+          'to be running an older version -- please update FireRuby (gem install fireruby).'
+      end
+      config = config.symbolize_keys
+      unless config.has_key?(:database)
+        raise ArgumentError, "No database specified. Missing argument: database."
+      end
+      options = config[:charset] ? { CHARACTER_SET => config[:charset] } : {}
+      connection_params = [config[:username], config[:password], options]
+      db = FireRuby::Database.new_from_params(*config.values_at(:database, :host, :port, :service))
+      connection = db.connect(*connection_params)
+      ConnectionAdapters::FirebirdAdapter.new(connection, logger, connection_params)
+    end
+  end
+
+  module ConnectionAdapters
+    class FirebirdColumn < Column # :nodoc:
+      VARCHAR_MAX_LENGTH = 32_765
+      BLOB_MAX_LENGTH    = 32_767
+
+      def initialize(name, domain, type, sub_type, length, precision, scale, default_source, null_flag)
+        @firebird_type = FireRuby::SQLType.to_base_type(type, sub_type).to_s
+        super(name.downcase, nil, @firebird_type, !null_flag)
+        @default = parse_default(default_source) if default_source
+        @limit = type == 'BLOB' ? BLOB_MAX_LENGTH : length
+        @domain, @sub_type, @precision, @scale = domain, sub_type, precision, scale
+      end
+
+      def type
+        if @domain =~ /BOOLEAN/
+          :boolean
+        elsif @type == :binary and @sub_type == 1
+          :text
+        else
+          @type
+        end
+      end
+
+      # Submits a _CAST_ query to the database, casting the default value to the specified SQL type.
+      # This enables Firebird to provide an actual value when context variables are used as column
+      # defaults (such as CURRENT_TIMESTAMP).
+      def default
+        if @default
+          sql = "SELECT CAST(#{@default} AS #{column_def}) FROM RDB$DATABASE"
+          connection = ActiveRecord::Base.active_connections.values.detect { |conn| conn && conn.adapter_name == 'Firebird' }
+          if connection
+            type_cast connection.execute(sql).to_a.first['CAST']
+          else
+            raise ConnectionNotEstablished, "No Firebird connections established."
+          end
+        end
+      end
+
+      def type_cast(value)
+        if type == :boolean
+          value == true or value == ActiveRecord::ConnectionAdapters::FirebirdAdapter.boolean_domain[:true]
+        else
+          super
+        end
+      end
+
+      private
+        def parse_default(default_source)
+          default_source =~ /^\s*DEFAULT\s+(.*)\s*$/i
+          return $1 unless $1.upcase == "NULL"
+        end
+
+        def column_def
+          case @firebird_type
+            when 'BLOB'               then "VARCHAR(#{VARCHAR_MAX_LENGTH})"
+            when 'CHAR', 'VARCHAR'    then "#{@firebird_type}(#{@limit})"
+            when 'NUMERIC', 'DECIMAL' then "#{@firebird_type}(#{@precision},#{@scale.abs})"
+            when 'DOUBLE'             then "DOUBLE PRECISION"
+            else @firebird_type
+          end
+        end
+
+        def simplified_type(field_type)
+          if field_type == 'TIMESTAMP'
+            :datetime
+          else
+            super
+          end
+        end
+    end
+
+    # The Firebird adapter relies on the FireRuby[http://rubyforge.org/projects/fireruby/]
+    # extension, version 0.4.0 or later (available as a gem or from
+    # RubyForge[http://rubyforge.org/projects/fireruby/]). FireRuby works with
+    # Firebird 1.5.x on Linux, OS X and Win32 platforms.
+    #
+    # == Usage Notes
+    #
+    # === Sequence (Generator) Names
+    # The Firebird adapter supports the same approach adopted for the Oracle
+    # adapter. See ActiveRecord::Base#set_sequence_name for more details.
+    #
+    # Note that in general there is no need to create a <tt>BEFORE INSERT</tt>
+    # trigger corresponding to a Firebird sequence generator when using
+    # ActiveRecord. In other words, you don't have to try to make Firebird
+    # simulate an <tt>AUTO_INCREMENT</tt> or +IDENTITY+ column. When saving a
+    # new record, ActiveRecord pre-fetches the next sequence value for the table
+    # and explicitly includes it in the +INSERT+ statement. (Pre-fetching the
+    # next primary key value is the only reliable method for the Firebird
+    # adapter to report back the +id+ after a successful insert.)
+    #
+    # === BOOLEAN Domain
+    # Firebird 1.5 does not provide a native +BOOLEAN+ type. But you can easily
+    # define a +BOOLEAN+ _domain_ for this purpose, e.g.:
+    #
+    #  CREATE DOMAIN D_BOOLEAN AS SMALLINT CHECK (VALUE IN (0, 1));
+    #
+    # When the Firebird adapter encounters a column that is based on a domain
+    # that includes "BOOLEAN" in the domain name, it will attempt to treat
+    # the column as a +BOOLEAN+.
+    #
+    # By default, the Firebird adapter will assume that the BOOLEAN domain is
+    # defined as above.  This can be modified if needed.  For example, if you
+    # have a legacy schema with the following +BOOLEAN+ domain defined:
+    #
+    #  CREATE DOMAIN BOOLEAN AS CHAR(1) CHECK (VALUE IN ('T', 'F'));
+    #
+    # ...you can add the following line to your <tt>environment.rb</tt> file:
+    #
+    #  ActiveRecord::ConnectionAdapters::FirebirdAdapter.boolean_domain = { :true => 'T', :false => 'F' }
+    #
+    # === BLOB Elements
+    # The Firebird adapter currently provides only limited support for +BLOB+
+    # columns. You cannot currently retrieve or insert a +BLOB+ as an IO stream.
+    # When selecting a +BLOB+, the entire element is converted into a String.
+    # When inserting or updating a +BLOB+, the entire value is included in-line
+    # in the SQL statement, limiting you to values <= 32KB in size.
+    #
+    # === Column Name Case Semantics
+    # Firebird and ActiveRecord have somewhat conflicting case semantics for
+    # column names.
+    #
+    # [*Firebird*]
+    #   The standard practice is to use unquoted column names, which can be
+    #   thought of as case-insensitive. (In fact, Firebird converts them to
+    #   uppercase.) Quoted column names (not typically used) are case-sensitive.
+    # [*ActiveRecord*]
+    #   Attribute accessors corresponding to column names are case-sensitive.
+    #   The defaults for primary key and inheritance columns are lowercase, and
+    #   in general, people use lowercase attribute names.
+    #
+    # In order to map between the differing semantics in a way that conforms
+    # to common usage for both Firebird and ActiveRecord, uppercase column names
+    # in Firebird are converted to lowercase attribute names in ActiveRecord,
+    # and vice-versa. Mixed-case column names retain their case in both
+    # directions. Lowercase (quoted) Firebird column names are not supported.
+    # This is similar to the solutions adopted by other adapters.
+    #
+    # In general, the best approach is to use unqouted (case-insensitive) column
+    # names in your Firebird DDL (or if you must quote, use uppercase column
+    # names). These will correspond to lowercase attributes in ActiveRecord.
+    #
+    # For example, a Firebird table based on the following DDL:
+    #
+    #  CREATE TABLE products (
+    #    id BIGINT NOT NULL PRIMARY KEY,
+    #    "TYPE" VARCHAR(50),
+    #    name VARCHAR(255) );
+    #
+    # ...will correspond to an ActiveRecord model class called +Product+ with
+    # the following attributes: +id+, +type+, +name+.
+    #
+    # ==== Quoting <tt>"TYPE"</tt> and other Firebird reserved words:
+    # In ActiveRecord, the default inheritance column name is +type+. The word
+    # _type_ is a Firebird reserved word, so it must be quoted in any Firebird
+    # SQL statements. Because of the case mapping described above, you should
+    # always reference this column using quoted-uppercase syntax
+    # (<tt>"TYPE"</tt>) within Firebird DDL or other SQL statements (as in the
+    # example above). This holds true for any other Firebird reserved words used
+    # as column names as well.
+    #
+    # === Migrations
+    # The Firebird adapter does not currently support Migrations.  I hope to
+    # add this feature in the near future.
+    #
+    # == Connection Options
+    # The following options are supported by the Firebird adapter. None of the
+    # options have default values.
+    #
+    # <tt>:database</tt>::
+    #   <i>Required option.</i> Specifies one of: (i) a Firebird database alias;
+    #   (ii) the full path of a database file; _or_ (iii) a full Firebird
+    #   connection string. <i>Do not specify <tt>:host</tt>, <tt>:service</tt>
+    #   or <tt>:port</tt> as separate options when using a full connection
+    #   string.</i>
+    # <tt>:host</tt>::
+    #   Set to <tt>"remote.host.name"</tt> for remote database connections.
+    #   May be omitted for local connections if a full database path is
+    #   specified for <tt>:database</tt>. Some platforms require a value of
+    #   <tt>"localhost"</tt> for local connections when using a Firebird
+    #   database _alias_.
+    # <tt>:service</tt>::
+    #   Specifies a service name for the connection. Only used if <tt>:host</tt>
+    #   is provided. Required when connecting to a non-standard service.
+    # <tt>:port</tt>::
+    #   Specifies the connection port. Only used if <tt>:host</tt> is provided
+    #   and <tt>:service</tt> is not. Required when connecting to a non-standard
+    #   port and <tt>:service</tt> is not defined.
+    # <tt>:username</tt>::
+    #   Specifies the database user. May be omitted or set to +nil+ (together
+    #   with <tt>:password</tt>) to use the underlying operating system user
+    #   credentials on supported platforms.
+    # <tt>:password</tt>::
+    #   Specifies the database password. Must be provided if <tt>:username</tt>
+    #   is explicitly specified; should be omitted if OS user credentials are
+    #   are being used.
+    # <tt>:charset</tt>::
+    #   Specifies the character set to be used by the connection. Refer to
+    #   Firebird documentation for valid options.
+    class FirebirdAdapter < AbstractAdapter
+      @@boolean_domain = { :true => 1, :false => 0 }
+      cattr_accessor :boolean_domain
+
+      def initialize(connection, logger, connection_params=nil)
+        super(connection, logger)
+        @connection_params = connection_params
+      end
+
+      def adapter_name # :nodoc:
+        'Firebird'
+      end
+
+      # Returns true for Firebird adapter (since Firebird requires primary key
+      # values to be pre-fetched before insert). See also #next_sequence_value.
+      def prefetch_primary_key?(table_name = nil)
+        true
+      end
+
+      def default_sequence_name(table_name, primary_key) # :nodoc:
+        "#{table_name}_seq"
+      end
+
+
+      # QUOTING ==================================================
+
+      def quote(value, column = nil) # :nodoc:
+        if [Time, DateTime].include?(value.class)
+          "CAST('#{value.strftime("%Y-%m-%d %H:%M:%S")}' AS TIMESTAMP)"
+        else
+          super
+        end
+      end
+
+      def quote_string(string) # :nodoc:
+        string.gsub(/'/, "''")
+      end
+
+      def quote_column_name(column_name) # :nodoc:
+        %Q("#{ar_to_fb_case(column_name)}")
+      end
+
+      def quoted_true # :nodoc:
+        quote(boolean_domain[:true])
+      end
+
+      def quoted_false # :nodoc:
+        quote(boolean_domain[:false])
+      end
+
+
+      # CONNECTION MANAGEMENT ====================================
+
+      def active?
+        not @connection.closed?
+      end
+
+      def reconnect!
+        @connection.close
+        @connection = @connection.database.connect(*@connection_params)
+      end
+
+
+      # DATABASE STATEMENTS ======================================
+
+      def select_all(sql, name = nil) # :nodoc:
+        select(sql, name)
+      end
+
+      def select_one(sql, name = nil) # :nodoc:
+        result = select(sql, name)
+        result.nil? ? nil : result.first
+      end
+
+      def execute(sql, name = nil, &block) # :nodoc:
+        log(sql, name) do
+          if @transaction
+            @connection.execute(sql, @transaction, &block)
+          else
+            @connection.execute_immediate(sql, &block)
+          end
+        end
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) # :nodoc:
+        execute(sql, name)
+        id_value
+      end
+
+      alias_method :update, :execute
+      alias_method :delete, :execute
+
+      def begin_db_transaction() # :nodoc:
+        @transaction = @connection.start_transaction
+      end
+
+      def commit_db_transaction() # :nodoc:
+        @transaction.commit
+      ensure
+        @transaction = nil
+      end
+
+      def rollback_db_transaction() # :nodoc:
+        @transaction.rollback
+      ensure
+        @transaction = nil
+      end
+
+      def add_limit_offset!(sql, options) # :nodoc:
+        if options[:limit]
+          limit_string = "FIRST #{options[:limit]}"
+          limit_string << " SKIP #{options[:offset]}" if options[:offset]
+          sql.sub!(/\A(\s*SELECT\s)/i, '\&' + limit_string + ' ')
+        end
+      end
+
+      # Returns the next sequence value from a sequence generator. Not generally
+      # called directly; used by ActiveRecord to get the next primary key value
+      # when inserting a new database record (see #prefetch_primary_key?).
+      def next_sequence_value(sequence_name)
+        FireRuby::Generator.new(sequence_name, @connection).next(1)
+      end
+
+
+      # SCHEMA STATEMENTS ========================================
+
+      def columns(table_name, name = nil) # :nodoc:
+        sql = <<-END_SQL
+          SELECT r.rdb$field_name, r.rdb$field_source, f.rdb$field_type, f.rdb$field_sub_type,
+                 f.rdb$field_length, f.rdb$field_precision, f.rdb$field_scale,
+                 COALESCE(r.rdb$default_source, f.rdb$default_source) rdb$default_source,
+                 COALESCE(r.rdb$null_flag, f.rdb$null_flag) rdb$null_flag
+          FROM rdb$relation_fields r
+          JOIN rdb$fields f ON r.rdb$field_source = f.rdb$field_name
+          WHERE r.rdb$relation_name = '#{table_name.to_s.upcase}'
+          ORDER BY r.rdb$field_position
+        END_SQL
+        execute(sql, name).collect do |field|
+          field_values = field.values.collect do |value|
+            case value
+              when String         then value.rstrip
+              when FireRuby::Blob then value.to_s
+              else value
+            end
+          end
+          FirebirdColumn.new(*field_values)
+        end
+      end
+
+      private
+        def select(sql, name = nil)
+          execute(sql, name).collect do |row|
+            hashed_row = {}
+            row.each do |column, value|
+              value = value.to_s if FireRuby::Blob === value
+              hashed_row[fb_to_ar_case(column)] = value
+            end
+            hashed_row
+          end
+        end
+
+        # Maps uppercase Firebird column names to lowercase for ActiveRecord;
+        # mixed-case columns retain their original case.
+        def fb_to_ar_case(column_name)
+          column_name =~ /[[:lower:]]/ ? column_name : column_name.downcase
+        end
+
+        # Maps lowercase ActiveRecord column names to uppercase for Fierbird;
+        # mixed-case columns retain their original case.
+        def ar_to_fb_case(column_name)
+          column_name =~ /[[:upper:]]/ ? column_name : column_name.upcase
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb

@@ -0,0 +1,357 @@
+require 'active_record/connection_adapters/abstract_adapter'
+
+module ActiveRecord
+  class Base
+    # Establishes a connection to the database that's used by all Active Record objects.
+    def self.mysql_connection(config) # :nodoc:
+      # Only include the MySQL driver if one hasn't already been loaded
+      unless defined? Mysql
+        begin
+          require_library_or_gem 'mysql'
+        rescue LoadError => cannot_require_mysql
+          # Only use the supplied backup Ruby/MySQL driver if no driver is already in place
+          begin
+            require 'active_record/vendor/mysql'
+          rescue LoadError
+            raise cannot_require_mysql
+          end
+        end
+      end
+
+      config = config.symbolize_keys
+      host     = config[:host]
+      port     = config[:port]
+      socket   = config[:socket]
+      username = config[:username] ? config[:username].to_s : 'root'
+      password = config[:password].to_s
+
+      if config.has_key?(:database)
+        database = config[:database]
+      else
+        raise ArgumentError, "No database specified. Missing argument: database."
+      end
+
+      mysql = Mysql.init
+      mysql.ssl_set(config[:sslkey], config[:sslcert], config[:sslca], config[:sslcapath], config[:sslcipher]) if config[:sslkey]
+      ConnectionAdapters::MysqlAdapter.new(mysql, logger, [host, username, password, database, port, socket], config)
+    end
+  end
+
+  module ConnectionAdapters
+    class MysqlColumn < Column #:nodoc:
+      private
+        def simplified_type(field_type)
+          return :boolean if MysqlAdapter.emulate_booleans && field_type.downcase.index("tinyint(1)")
+          return :string  if field_type =~ /enum/i
+          super
+        end
+    end
+
+    # The MySQL adapter will work with both Ruby/MySQL, which is a Ruby-based MySQL adapter that comes bundled with Active Record, and with
+    # the faster C-based MySQL/Ruby adapter (available both as a gem and from http://www.tmtm.org/en/mysql/ruby/).
+    #
+    # Options:
+    #
+    # * <tt>:host</tt> -- Defaults to localhost
+    # * <tt>:port</tt> -- Defaults to 3306
+    # * <tt>:socket</tt> -- Defaults to /tmp/mysql.sock
+    # * <tt>:username</tt> -- Defaults to root
+    # * <tt>:password</tt> -- Defaults to nothing
+    # * <tt>:database</tt> -- The name of the database. No default, must be provided.
+    # * <tt>:sslkey</tt> -- Necessary to use MySQL with an SSL connection
+    # * <tt>:sslcert</tt> -- Necessary to use MySQL with an SSL connection
+    # * <tt>:sslcapath</tt> -- Necessary to use MySQL with an SSL connection
+    # * <tt>:sslcipher</tt> -- Necessary to use MySQL with an SSL connection
+    #
+    # By default, the MysqlAdapter will consider all columns of type tinyint(1)
+    # as boolean. If you wish to disable this emulation (which was the default
+    # behavior in versions 0.13.1 and earlier) you can add the following line
+    # to your environment.rb file:
+    #
+    #   ActiveRecord::ConnectionAdapters::MysqlAdapter.emulate_booleans = false
+    class MysqlAdapter < AbstractAdapter
+      @@emulate_booleans = true
+      cattr_accessor :emulate_booleans
+
+      LOST_CONNECTION_ERROR_MESSAGES = [
+        "Server shutdown in progress",
+        "Broken pipe",
+        "Lost connection to MySQL server during query",
+        "MySQL server has gone away"
+      ]
+
+      def initialize(connection, logger, connection_options, config)
+        super(connection, logger)
+        @connection_options, @config = connection_options, config
+        @null_values_in_each_hash = Mysql.const_defined?(:VERSION)
+        connect
+      end
+
+      def adapter_name #:nodoc:
+        'MySQL'
+      end
+
+      def supports_migrations? #:nodoc:
+        true
+      end
+
+      def native_database_types #:nodoc
+        {
+          :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY",
+          :string      => { :name => "varchar", :limit => 255 },
+          :text        => { :name => "text" },
+          :integer     => { :name => "int", :limit => 11 },
+          :float       => { :name => "float" },
+          :datetime    => { :name => "datetime" },
+          :timestamp   => { :name => "datetime" },
+          :time        => { :name => "time" },
+          :date        => { :name => "date" },
+          :binary      => { :name => "blob" },
+          :boolean     => { :name => "tinyint", :limit => 1 }
+        }
+      end
+
+
+      # QUOTING ==================================================
+
+      def quote(value, column = nil)
+        if value.kind_of?(String) && column && column.type == :binary && column.class.respond_to?(:string_to_binary)
+          s = column.class.string_to_binary(value).unpack("H*")[0]
+          "x'#{s}'"
+        else
+          super
+        end
+      end
+
+      def quote_column_name(name) #:nodoc:
+        "`#{name}`"
+      end
+
+      def quote_string(string) #:nodoc:
+        @connection.quote(string)
+      end
+
+      def quoted_true
+        "1"
+      end
+      
+      def quoted_false
+        "0"
+      end
+
+
+      # CONNECTION MANAGEMENT ====================================
+
+      def active?
+        if @connection.respond_to?(:stat)
+          @connection.stat
+        else
+          @connection.query 'select 1'
+        end
+
+        # mysql-ruby doesn't raise an exception when stat fails.
+        if @connection.respond_to?(:errno)
+          @connection.errno.zero?
+        else
+          true
+        end
+      rescue Mysql::Error
+        false
+      end
+
+      def reconnect!
+        disconnect!
+        connect
+      end
+      
+      def disconnect!
+        @connection.close rescue nil
+      end
+
+
+      # DATABASE STATEMENTS ======================================
+
+      def select_all(sql, name = nil) #:nodoc:
+        select(sql, name)
+      end
+
+      def select_one(sql, name = nil) #:nodoc:
+        result = select(sql, name)
+        result.nil? ? nil : result.first
+      end
+
+      def execute(sql, name = nil, retries = 2) #:nodoc:
+        log(sql, name) { @connection.query(sql) }
+      rescue ActiveRecord::StatementInvalid => exception
+        if exception.message.split(":").first =~ /Packets out of order/
+          raise ActiveRecord::StatementInvalid, "'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information.  If you're on Windows, use the Instant Rails installer to get the updated mysql bindings."
+        else
+          raise
+        end
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
+        execute(sql, name = nil)
+        id_value || @connection.insert_id
+      end
+
+      def update(sql, name = nil) #:nodoc:
+        execute(sql, name)
+        @connection.affected_rows
+      end
+
+      alias_method :delete, :update #:nodoc:
+
+
+      def begin_db_transaction #:nodoc:
+        execute "BEGIN"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def commit_db_transaction #:nodoc:
+        execute "COMMIT"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def rollback_db_transaction #:nodoc:
+        execute "ROLLBACK"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+
+      def add_limit_offset!(sql, options) #:nodoc
+        if limit = options[:limit]
+          unless offset = options[:offset]
+            sql << " LIMIT #{limit}"
+          else
+            sql << " LIMIT #{offset}, #{limit}"
+          end
+        end
+      end
+
+
+      # SCHEMA STATEMENTS ========================================
+
+      def structure_dump #:nodoc:
+        if supports_views?
+          sql = "SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'"
+        else
+          sql = "SHOW TABLES"
+        end
+        
+        select_all(sql).inject("") do |structure, table|
+          table.delete('Table_type')
+          structure += select_one("SHOW CREATE TABLE #{table.to_a.first.last}")["Create Table"] + ";\n\n"
+        end
+      end
+
+      def recreate_database(name) #:nodoc:
+        drop_database(name)
+        create_database(name)
+      end
+
+      def create_database(name) #:nodoc:
+        execute "CREATE DATABASE `#{name}`"
+      end
+      
+      def drop_database(name) #:nodoc:
+        execute "DROP DATABASE IF EXISTS `#{name}`"
+      end
+
+      def current_database
+        select_one("SELECT DATABASE() as db")["db"]
+      end
+
+      def tables(name = nil) #:nodoc:
+        tables = []
+        execute("SHOW TABLES", name).each { |field| tables << field[0] }
+        tables
+      end
+
+      def indexes(table_name, name = nil)#:nodoc:
+        indexes = []
+        current_index = nil
+        execute("SHOW KEYS FROM #{table_name}", name).each do |row|
+          if current_index != row[2]
+            next if row[2] == "PRIMARY" # skip the primary key
+            current_index = row[2]
+            indexes << IndexDefinition.new(row[0], row[2], row[1] == "0", [])
+          end
+
+          indexes.last.columns << row[4]
+        end
+        indexes
+      end
+
+      def columns(table_name, name = nil)#:nodoc:
+        sql = "SHOW FIELDS FROM #{table_name}"
+        columns = []
+        execute(sql, name).each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
+        columns
+      end
+
+      def create_table(name, options = {}) #:nodoc:
+        super(name, {:options => "ENGINE=InnoDB"}.merge(options))
+      end
+      
+      def rename_table(name, new_name)
+        execute "RENAME TABLE #{name} TO #{new_name}"
+      end  
+
+      def change_column_default(table_name, column_name, default) #:nodoc:
+        current_type = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Type"]
+
+        change_column(table_name, column_name, current_type, { :default => default })
+      end
+
+      def change_column(table_name, column_name, type, options = {}) #:nodoc:
+        options[:default] ||= select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Default"]
+        
+        change_column_sql = "ALTER TABLE #{table_name} CHANGE #{column_name} #{column_name} #{type_to_sql(type, options[:limit])}"
+        add_column_options!(change_column_sql, options)
+        execute(change_column_sql)
+      end
+
+      def rename_column(table_name, column_name, new_column_name) #:nodoc:
+        current_type = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Type"]
+        execute "ALTER TABLE #{table_name} CHANGE #{column_name} #{new_column_name} #{current_type}"
+      end
+
+
+      private
+        def connect
+          encoding = @config[:encoding]
+          if encoding
+            @connection.options(Mysql::SET_CHARSET_NAME, encoding) rescue nil
+          end
+          @connection.real_connect(*@connection_options)
+          execute("SET NAMES '#{encoding}'") if encoding
+        end
+
+        def select(sql, name = nil)
+          @connection.query_with_result = true
+          result = execute(sql, name)
+          rows = []
+          if @null_values_in_each_hash
+            result.each_hash { |row| rows << row }
+          else
+            all_fields = result.fetch_fields.inject({}) { |fields, f| fields[f.name] = nil; fields }
+            result.each_hash { |row| rows << all_fields.dup.update(row) }
+          end
+          result.free
+          rows
+        end
+        
+        def supports_views?
+          version[0] >= 5
+        end
+        
+        def version
+          @version ||= @connection.server_info.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i }
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/openbase_adapter.rb

@@ -0,0 +1,349 @@
+require 'active_record/connection_adapters/abstract_adapter'
+
+module ActiveRecord
+  class Base
+    # Establishes a connection to the database that's used by all Active Record objects
+    def self.openbase_connection(config) # :nodoc:
+      require_library_or_gem 'openbase' unless self.class.const_defined?(:OpenBase)
+
+      config = config.symbolize_keys
+      host     = config[:host]
+      username = config[:username].to_s
+      password = config[:password].to_s
+      
+
+      if config.has_key?(:database)
+        database = config[:database]
+      else
+        raise ArgumentError, "No database specified. Missing argument: database."
+      end
+
+      oba = ConnectionAdapters::OpenBaseAdapter.new(
+        OpenBase.new(database, host, username, password), logger
+      )
+      
+      oba
+    end
+    
+  end
+
+  module ConnectionAdapters
+    class OpenBaseColumn < Column #:nodoc:
+      private
+        def simplified_type(field_type)
+          return :integer if field_type.downcase =~ /long/
+          return :float   if field_type.downcase == "money"
+          return :binary  if field_type.downcase == "object"
+          super
+        end
+    end
+    # The OpenBase adapter works with the Ruby/Openbase driver by Tetsuya Suzuki.
+    # http://www.spice-of-life.net/ruby-openbase/ (needs version 0.7.3+)
+    #
+    # Options:
+    #
+    # * <tt>:host</tt> -- Defaults to localhost
+    # * <tt>:username</tt> -- Defaults to nothing
+    # * <tt>:password</tt> -- Defaults to nothing
+    # * <tt>:database</tt> -- The name of the database. No default, must be provided.
+    #
+    # The OpenBase adapter will make use of OpenBase's ability to generate unique ids
+    # for any column with an unique index applied.  Thus, if the value of a primary
+    # key is not specified at the time an INSERT is performed, the adapter will prefetch
+    # a unique id for the primary key.  This prefetching is also necessary in order 
+    # to return the id after an insert.
+    #
+    # Caveat: Operations involving LIMIT and OFFSET do not yet work!
+    #
+    # Maintainer: derrickspell@cdmplus.com
+    class OpenBaseAdapter < AbstractAdapter
+      def adapter_name
+        'OpenBase'
+      end
+      
+      def native_database_types
+        {
+          :primary_key => "integer UNIQUE INDEX DEFAULT _rowid",
+          :string      => { :name => "char", :limit => 4096 },
+          :text        => { :name => "text" },
+          :integer     => { :name => "integer" },
+          :float       => { :name => "float" },
+          :datetime    => { :name => "datetime" },
+          :timestamp   => { :name => "timestamp" },
+          :time        => { :name => "time" },
+          :date        => { :name => "date" },
+          :binary      => { :name => "object" },
+          :boolean     => { :name => "boolean" }
+        }
+      end
+      
+      def supports_migrations?
+        false
+      end      
+      
+      def prefetch_primary_key?(table_name = nil)
+        true
+      end
+      
+      def default_sequence_name(table_name, primary_key) # :nodoc:
+        "#{table_name} #{primary_key}"
+      end
+      
+      def next_sequence_value(sequence_name)
+        ary = sequence_name.split(' ')
+        if (!ary[1]) then
+          ary[0] =~ /(\w+)_nonstd_seq/
+          ary[0] = $1
+        end
+        @connection.unique_row_id(ary[0], ary[1])
+      end
+
+      
+      # QUOTING ==================================================
+      
+      def quote(value, column = nil)
+        if value.kind_of?(String) && column && column.type == :binary
+          "'#{@connection.insert_binary(value)}'"
+        else
+          super
+        end
+      end
+      
+      def quoted_true
+        "1"
+      end
+      
+      def quoted_false
+        "0"
+      end
+      
+
+
+      # DATABASE STATEMENTS ======================================
+
+      def add_limit_offset!(sql, options) #:nodoc
+        if limit = options[:limit]
+          unless offset = options[:offset]
+            sql << " RETURN RESULTS #{limit}"
+          else
+            limit = limit + offset
+            sql << " RETURN RESULTS #{offset} TO #{limit}"
+          end
+        end
+      end
+      
+      def select_all(sql, name = nil) #:nodoc:
+        select(sql, name)
+      end
+
+      def select_one(sql, name = nil) #:nodoc:
+        add_limit_offset!(sql,{:limit => 1})
+        results = select(sql, name)
+        results.first if results
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
+        execute(sql, name)
+        update_nulls_after_insert(sql, name, pk, id_value, sequence_name)
+        id_value
+      end
+      
+      def execute(sql, name = nil) #:nodoc:
+        log(sql, name) { @connection.execute(sql) }
+      end
+
+      def update(sql, name = nil) #:nodoc:
+        execute(sql, name).rows_affected
+      end
+
+      alias_method :delete, :update #:nodoc:
+#=begin
+      def begin_db_transaction #:nodoc:
+        execute "START TRANSACTION"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def commit_db_transaction #:nodoc:
+        execute "COMMIT"
+      rescue Exception
+        # Transactions aren't supported
+      end
+
+      def rollback_db_transaction #:nodoc:
+        execute "ROLLBACK"
+      rescue Exception
+        # Transactions aren't supported
+      end
+#=end      
+
+      # SCHEMA STATEMENTS ========================================
+
+      # Return the list of all tables in the schema search path.
+      def tables(name = nil) #:nodoc:
+        tables = @connection.tables
+        tables.reject! { |t| /\A_SYS_/ === t }
+        tables
+      end
+
+      def columns(table_name, name = nil) #:nodoc:
+        sql = "SELECT * FROM _sys_tables "
+        sql << "WHERE tablename='#{table_name}' AND INDEXOF(fieldname,'_')<>0 "
+        sql << "ORDER BY columnNumber"
+        columns = []
+        select_all(sql, name).each do |row|
+          columns << OpenBaseColumn.new(row["fieldname"],
+                                default_value(row["defaultvalue"]),
+                                sql_type_name(row["typename"],row["length"]),
+                                row["notnull"]
+                                )
+    #      breakpoint() if row["fieldname"] == "content"
+        end
+        columns
+      end
+
+      def indexes(table_name, name = nil)#:nodoc:
+        sql = "SELECT fieldname, notnull, searchindex, uniqueindex, clusteredindex FROM _sys_tables "
+        sql << "WHERE tablename='#{table_name}' AND INDEXOF(fieldname,'_')<>0 "
+        sql << "AND primarykey=0 "
+        sql << "AND (searchindex=1 OR uniqueindex=1 OR clusteredindex=1) "
+        sql << "ORDER BY columnNumber"
+        indexes = []
+        execute(sql, name).each do |row|
+          indexes << IndexDefinition.new(table_name,index_name(row),row[3]==1,[row[0]])
+        end
+        indexes
+      end
+
+
+      private
+        def select(sql, name = nil)
+          sql = translate_sql(sql)
+          results = execute(sql, name)
+
+          date_cols = []
+          col_names = []
+          results.column_infos.each do |info|
+            col_names << info.name
+            date_cols << info.name if info.type == "date"
+          end
+          
+          rows = []
+          if ( results.rows_affected )
+            results.each do |row|  # loop through result rows
+              hashed_row = {}
+              row.each_index do |index| 
+                hashed_row["#{col_names[index]}"] = row[index] unless col_names[index] == "_rowid"
+              end
+              date_cols.each do |name|
+                unless hashed_row["#{name}"].nil? or hashed_row["#{name}"].empty?
+                  hashed_row["#{name}"] = Date.parse(hashed_row["#{name}"],false).to_s
+                end
+              end
+              rows << hashed_row
+            end
+          end
+          rows
+        end
+        
+        def default_value(value)
+          # Boolean type values
+          return true if value =~ /true/
+          return false if value =~ /false/
+ 
+          # Date / Time magic values
+          return Time.now.to_s if value =~ /^now\(\)/i
+ 
+          # Empty strings should be set to null
+          return nil if value.empty?
+          
+          # Otherwise return what we got from OpenBase
+          # and hope for the best...
+          return value
+        end 
+        
+        def sql_type_name(type_name, length)
+          return "#{type_name}(#{length})" if ( type_name =~ /char/ )
+          type_name
+        end
+                
+        def index_name(row = [])
+          name = ""
+          name << "UNIQUE " if row[3]
+          name << "CLUSTERED " if row[4]
+          name << "INDEX"
+          name
+        end
+        
+        def translate_sql(sql)
+          
+          # Change table.* to list of columns in table
+          while (sql =~ /SELECT.*\s(\w+)\.\*/)
+            table = $1
+            cols = columns(table)
+            if ( cols.size == 0 ) then
+              # Maybe this is a table alias
+              sql =~ /FROM(.+?)(?:LEFT|OUTER|JOIN|WHERE|GROUP|HAVING|ORDER|RETURN|$)/  
+              $1 =~ /[\s|,](\w+)\s+#{table}[\s|,]/ # get the tablename for this alias
+              cols = columns($1)
+            end
+            select_columns = []
+            cols.each do |col|
+              select_columns << table + '.' + col.name
+            end
+            sql.gsub!(table + '.*',select_columns.join(", ")) if select_columns
+          end
+   
+          # Change JOIN clause to table list and WHERE condition
+          while (sql =~ /JOIN/)
+            sql =~ /((LEFT )?(OUTER )?JOIN (\w+) ON )(.+?)(?:LEFT|OUTER|JOIN|WHERE|GROUP|HAVING|ORDER|RETURN|$)/
+            join_clause = $1 + $5
+            is_outer_join = $3
+            join_table = $4
+            join_condition = $5
+            join_condition.gsub!(/=/,"*") if is_outer_join
+            if (sql =~ /WHERE/)
+              sql.gsub!(/WHERE/,"WHERE (#{join_condition}) AND")
+            else
+              sql.gsub!(join_clause,"#{join_clause} WHERE #{join_condition}")
+            end
+            sql =~ /(FROM .+?)(?:LEFT|OUTER|JOIN|WHERE|$)/
+            from_clause = $1
+            sql.gsub!(from_clause,"#{from_clause}, #{join_table} ")
+            sql.gsub!(join_clause,"")
+          end
+    
+          # ORDER BY _rowid if no explicit ORDER BY
+          # This will ensure that find(:first) returns the first inserted row
+          if (sql !~ /(ORDER BY)|(GROUP BY)/)
+            if (sql =~ /RETURN RESULTS/)
+              sql.sub!(/RETURN RESULTS/,"ORDER BY _rowid RETURN RESULTS")
+            else
+              sql << " ORDER BY _rowid"
+            end
+          end
+          
+          sql
+        end
+        
+        def update_nulls_after_insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
+          sql =~ /INSERT INTO (\w+) \((.*)\) VALUES\s*\((.*)\)/m
+          table = $1
+          cols = $2
+          values = $3
+          cols = cols.split(',')
+          values.gsub!(/'[^']*'/,"''")
+          values.gsub!(/"[^"]*"/,"\"\"")
+          values = values.split(',')
+          update_cols = []
+          values.each_index { |index| update_cols << cols[index] if values[index] =~ /\s*NULL\s*/ }
+          update_sql = "UPDATE #{table} SET"
+          update_cols.each { |col| update_sql << " #{col}=NULL," unless col.empty? }
+          update_sql.chop!()
+          update_sql << " WHERE #{pk}=#{quote(id_value)}"
+          execute(update_sql, name + " NULL Correction") if update_cols.size > 0
+        end
+        
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/oracle_adapter.rb

@@ -0,0 +1,665 @@
+# oracle_adapter.rb -- ActiveRecord adapter for Oracle 8i, 9i, 10g
+#
+# Original author: Graham Jenkins
+#
+# Current maintainer: Michael Schoen <schoenm@earthlink.net>
+#
+#########################################################################
+#
+# Implementation notes:
+# 1. Redefines (safely) a method in ActiveRecord to make it possible to
+#    implement an autonumbering solution for Oracle.
+# 2. The OCI8 driver is patched to properly handle values for LONG and
+#    TIMESTAMP columns. The driver-author has indicated that a future
+#    release of the driver will obviate this patch.
+# 3. LOB support is implemented through an after_save callback.
+# 4. Oracle does not offer native LIMIT and OFFSET options; this
+#    functionality is mimiced through the use of nested selects.
+#    See http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:127412348064
+#
+# Do what you want with this code, at your own peril, but if any
+# significant portion of my code remains then please acknowledge my
+# contribution.
+# portions Copyright 2005 Graham Jenkins
+
+require 'active_record/connection_adapters/abstract_adapter'
+require 'delegate'
+
+begin
+  require_library_or_gem 'oci8' unless self.class.const_defined? :OCI8
+
+  module ActiveRecord
+    class Base
+      def self.oracle_connection(config) #:nodoc:
+        # Use OCI8AutoRecover instead of normal OCI8 driver.
+        ConnectionAdapters::OracleAdapter.new OCI8AutoRecover.new(config), logger
+      end
+
+      # for backwards-compatibility
+      def self.oci_connection(config) #:nodoc:
+        config[:database] = config[:host]
+        self.oracle_connection(config)
+      end
+
+      # Enable the id column to be bound into the sql later, by the adapter's insert method.
+      # This is preferable to inserting the hard-coded value here, because the insert method
+      # needs to know the id value explicitly.
+      alias :attributes_with_quotes_pre_oracle :attributes_with_quotes
+      def attributes_with_quotes(include_primary_key = true) #:nodoc:
+        aq = attributes_with_quotes_pre_oracle(include_primary_key)
+        if connection.class == ConnectionAdapters::OracleAdapter
+          aq[self.class.primary_key] = ":id" if include_primary_key && aq[self.class.primary_key].nil?
+        end
+        aq
+      end
+
+      # After setting large objects to empty, select the OCI8::LOB
+      # and write back the data.
+      after_save :write_lobs 
+      def write_lobs() #:nodoc:
+        if connection.is_a?(ConnectionAdapters::OracleAdapter)
+          self.class.columns.select { |c| c.type == :binary }.each { |c|
+            value = self[c.name]
+            next if value.nil?  || (value == '')
+            lob = connection.select_one(
+              "SELECT #{ c.name} FROM #{ self.class.table_name } WHERE #{ self.class.primary_key} = #{quote(id)}",
+              'Writable Large Object')[c.name]
+            lob.write value
+          }
+        end
+      end
+
+      private :write_lobs
+    end
+
+
+    module ConnectionAdapters #:nodoc:
+      class OracleColumn < Column #:nodoc:
+        attr_reader :sql_type
+
+        # overridden to add the concept of scale, required to differentiate
+        # between integer and float fields
+        def initialize(name, default, sql_type, limit, scale, null)
+          @name, @limit, @sql_type, @scale, @null = name, limit, sql_type, scale, null
+
+          @type = simplified_type(sql_type)
+          @default = type_cast(default)
+
+          @primary = nil
+          @text    = [:string, :text].include? @type
+          @number  = [:float, :integer].include? @type
+        end
+
+        def type_cast(value)
+          return nil if value.nil? || value =~ /^\s*null\s*$/i
+          case type
+          when :string   then value
+          when :integer  then defined?(value.to_i) ? value.to_i : (value ? 1 : 0)
+          when :float    then value.to_f
+          when :datetime then cast_to_date_or_time(value)
+          when :time     then cast_to_time(value)
+          else value
+          end
+        end
+
+        private
+        def simplified_type(field_type)
+          case field_type
+          when /char/i                          : :string
+          when /num|float|double|dec|real|int/i : @scale == 0 ? :integer : :float
+          when /date|time/i                     : @name =~ /_at$/ ? :time : :datetime
+          when /clob/i                           : :text
+          when /blob/i                           : :binary
+          end
+        end
+
+        def cast_to_date_or_time(value)
+          return value if value.is_a? Date
+          return nil if value.blank?
+          guess_date_or_time (value.is_a? Time) ? value : cast_to_time(value)
+        end
+
+        def cast_to_time(value)
+          return value if value.is_a? Time
+          time_array = ParseDate.parsedate value
+          time_array[0] ||= 2000; time_array[1] ||= 1; time_array[2] ||= 1;
+          Time.send(Base.default_timezone, *time_array) rescue nil
+        end
+
+        def guess_date_or_time(value)
+          (value.hour == 0 and value.min == 0 and value.sec == 0) ?
+            Date.new(value.year, value.month, value.day) : value
+        end
+      end
+
+
+      # This is an Oracle/OCI adapter for the ActiveRecord persistence
+      # framework. It relies upon the OCI8 driver, which works with Oracle 8i
+      # and above. Most recent development has been on Debian Linux against
+      # a 10g database, ActiveRecord 1.12.1 and OCI8 0.1.13.
+      # See: http://rubyforge.org/projects/ruby-oci8/
+      #
+      # Usage notes:
+      # * Key generation assumes a "${table_name}_seq" sequence is available
+      #   for all tables; the sequence name can be changed using
+      #   ActiveRecord::Base.set_sequence_name. When using Migrations, these
+      #   sequences are created automatically.
+      # * Oracle uses DATE or TIMESTAMP datatypes for both dates and times.
+      #   Consequently some hacks are employed to map data back to Date or Time
+      #   in Ruby. If the column_name ends in _time it's created as a Ruby Time.
+      #   Else if the hours/minutes/seconds are 0, I make it a Ruby Date. Else
+      #   it's a Ruby Time. This is a bit nasty - but if you use Duck Typing
+      #   you'll probably not care very much. In 9i and up it's tempting to
+      #   map DATE to Date and TIMESTAMP to Time, but too many databases use
+      #   DATE for both. Timezones and sub-second precision on timestamps are
+      #   not supported.
+      # * Default values that are functions (such as "SYSDATE") are not
+      #   supported. This is a restriction of the way ActiveRecord supports
+      #   default values.
+      # * Support for Oracle8 is limited by Rails' use of ANSI join syntax, which
+      #   is supported in Oracle9i and later. You will need to use #finder_sql for
+      #   has_and_belongs_to_many associations to run against Oracle8.
+      #
+      # Required parameters:
+      #
+      # * <tt>:username</tt>
+      # * <tt>:password</tt>
+      # * <tt>:database</tt>
+      class OracleAdapter < AbstractAdapter
+
+        def adapter_name #:nodoc:
+          'Oracle'
+        end
+
+        def supports_migrations? #:nodoc:
+          true
+        end
+        
+        def native_database_types #:nodoc
+          {
+            :primary_key => "NUMBER(38) NOT NULL PRIMARY KEY",
+            :string      => { :name => "VARCHAR2", :limit => 255 },
+            :text        => { :name => "CLOB" },
+            :integer     => { :name => "NUMBER", :limit => 38 },
+            :float       => { :name => "NUMBER" },
+            :datetime    => { :name => "DATE" },
+            :timestamp   => { :name => "DATE" },
+            :time        => { :name => "DATE" },
+            :date        => { :name => "DATE" },
+            :binary      => { :name => "BLOB" },
+            :boolean     => { :name => "NUMBER", :limit => 1 }
+          }
+        end
+
+        def table_alias_length
+          30
+        end
+
+        # QUOTING ==================================================
+        #
+        # see: abstract/quoting.rb
+
+        # camelCase column names need to be quoted; not that anyone using Oracle
+        # would really do this, but handling this case means we pass the test...
+        def quote_column_name(name) #:nodoc:
+          name =~ /[A-Z]/ ? "\"#{name}\"" : name
+        end
+
+        def quote_string(string) #:nodoc:
+          string.gsub(/'/, "''")
+        end
+
+        def quote(value, column = nil) #:nodoc:
+          if column && column.type == :binary
+            %Q{empty_#{ column.sql_type rescue 'blob' }()}
+          else
+            case value
+            when String     : %Q{'#{quote_string(value)}'}
+            when NilClass   : 'null'
+            when TrueClass  : '1'
+            when FalseClass : '0'
+            when Numeric    : value.to_s
+            when Date, Time : %Q{'#{value.strftime("%Y-%m-%d %H:%M:%S")}'}
+            else              %Q{'#{quote_string(value.to_yaml)}'}
+            end
+          end
+        end
+
+
+        # CONNECTION MANAGEMENT ====================================
+        #
+
+        # Returns true if the connection is active.
+        def active?
+          # Pings the connection to check if it's still good. Note that an
+          # #active? method is also available, but that simply returns the 
+          # last known state, which isn't good enough if the connection has
+          # gone stale since the last use.
+          @connection.ping
+        rescue OCIException
+          false
+        end
+
+        # Reconnects to the database.
+        def reconnect!
+          @connection.reset!
+        rescue OCIException => e
+          @logger.warn "#{adapter_name} automatic reconnection failed: #{e.message}"
+        end
+
+        # Disconnects from the database.
+        def disconnect!
+          @connection.logoff rescue nil
+          @connection.active = false
+        end
+
+
+        # DATABASE STATEMENTS ======================================
+        #
+        # see: abstract/database_statements.rb
+
+        def select_all(sql, name = nil) #:nodoc:
+          select(sql, name)
+        end
+
+        def select_one(sql, name = nil) #:nodoc:
+          result = select_all(sql, name)
+          result.size > 0 ? result.first : nil
+        end
+
+        def execute(sql, name = nil) #:nodoc:
+          log(sql, name) { @connection.exec sql }
+        end
+
+        def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
+          if pk.nil? # Who called us? What does the sql look like? No idea!
+            execute sql, name
+          elsif id_value # Pre-assigned id
+            log(sql, name) { @connection.exec sql }
+          else # Assume the sql contains a bind-variable for the id
+            id_value = select_one("select #{sequence_name}.nextval id from dual")['id']
+            log(sql, name) { @connection.exec sql, id_value }
+          end
+
+          id_value
+        end
+
+        alias :update :execute #:nodoc:
+        alias :delete :execute #:nodoc:
+
+        def begin_db_transaction #:nodoc:
+          @connection.autocommit = false
+        end
+
+        def commit_db_transaction #:nodoc:
+          @connection.commit
+        ensure
+          @connection.autocommit = true
+        end
+
+        def rollback_db_transaction #:nodoc:
+          @connection.rollback
+        ensure
+          @connection.autocommit = true
+        end
+
+        def add_limit_offset!(sql, options) #:nodoc:
+          offset = options[:offset] || 0
+
+          if limit = options[:limit]
+            sql.replace "select * from (select raw_sql_.*, rownum raw_rnum_ from (#{sql}) raw_sql_ where rownum <= #{offset+limit}) where raw_rnum_ > #{offset}"
+          elsif offset > 0
+            sql.replace "select * from (select raw_sql_.*, rownum raw_rnum_ from (#{sql}) raw_sql_) where raw_rnum_ > #{offset}"
+          end
+        end
+
+        def default_sequence_name(table, column) #:nodoc:
+          "#{table}_seq"
+        end
+
+
+        # SCHEMA STATEMENTS ========================================
+        #
+        # see: abstract/schema_statements.rb
+
+        def current_database #:nodoc:
+          select_one("select sys_context('userenv','db_name') db from dual")["db"]
+        end
+
+        def tables(name = nil) #:nodoc:
+          select_all("select lower(table_name) from user_tables").inject([]) do | tabs, t |
+            tabs << t.to_a.first.last
+          end
+        end
+
+        def indexes(table_name, name = nil) #:nodoc:
+          result = select_all(<<-SQL, name)
+            SELECT lower(i.index_name) as index_name, i.uniqueness, lower(c.column_name) as column_name
+              FROM user_indexes i, user_ind_columns c
+             WHERE i.table_name = '#{table_name.to_s.upcase}'
+               AND c.index_name = i.index_name
+               AND i.index_name NOT IN (SELECT index_name FROM user_constraints WHERE constraint_type = 'P')
+              ORDER BY i.index_name, c.column_position
+          SQL
+
+          current_index = nil
+          indexes = []
+
+          result.each do |row|
+            if current_index != row['index_name']
+              indexes << IndexDefinition.new(table_name, row['index_name'], row['uniqueness'] == "UNIQUE", [])
+              current_index = row['index_name']
+            end
+
+            indexes.last.columns << row['column_name']
+          end
+
+          indexes
+        end
+
+        def columns(table_name, name = nil) #:nodoc:
+          (owner, table_name) = @connection.describe(table_name)
+
+          table_cols = %Q{
+            select column_name, data_type, data_default, nullable,
+                   decode(data_type, 'NUMBER', data_precision,
+                                     'VARCHAR2', data_length,
+                                      null) as length,
+                   decode(data_type, 'NUMBER', data_scale, null) as scale
+              from all_tab_columns
+             where owner      = '#{owner}'
+               and table_name = '#{table_name}'
+             order by column_id
+          }
+
+          select_all(table_cols, name).map do |row|
+            if row['data_default']
+              row['data_default'].sub!(/^(.*?)\s*$/, '\1')
+              row['data_default'].sub!(/^'(.*)'$/, '\1')
+            end
+            OracleColumn.new(
+              oracle_downcase(row['column_name']),
+              row['data_default'],
+              row['data_type'],
+              (l = row['length']).nil? ? nil : l.to_i,
+              (s = row['scale']).nil? ? nil : s.to_i,
+              row['nullable'] == 'Y'
+            )
+          end
+        end
+
+        def create_table(name, options = {}) #:nodoc:
+          super(name, options)
+          execute "CREATE SEQUENCE #{name}_seq START WITH 10000" unless options[:id] == false
+        end
+
+        def rename_table(name, new_name) #:nodoc:
+          execute "RENAME #{name} TO #{new_name}"
+          execute "RENAME #{name}_seq TO #{new_name}_seq" rescue nil
+        end  
+
+        def drop_table(name) #:nodoc:
+          super(name)
+          execute "DROP SEQUENCE #{name}_seq" rescue nil
+        end
+
+        def remove_index(table_name, options = {}) #:nodoc:
+          execute "DROP INDEX #{index_name(table_name, options)}"
+        end
+
+        def change_column_default(table_name, column_name, default) #:nodoc:
+          execute "ALTER TABLE #{table_name} MODIFY #{column_name} DEFAULT #{quote(default)}"
+        end
+
+        def change_column(table_name, column_name, type, options = {}) #:nodoc:
+          change_column_sql = "ALTER TABLE #{table_name} MODIFY #{column_name} #{type_to_sql(type, options[:limit])}"
+          add_column_options!(change_column_sql, options)
+          execute(change_column_sql)
+        end
+
+        def rename_column(table_name, column_name, new_column_name) #:nodoc:
+          execute "ALTER TABLE #{table_name} RENAME COLUMN #{column_name} to #{new_column_name}"
+        end
+
+        def remove_column(table_name, column_name) #:nodoc:
+          execute "ALTER TABLE #{table_name} DROP COLUMN #{column_name}"
+        end
+
+        def structure_dump #:nodoc:
+          s = select_all("select sequence_name from user_sequences").inject("") do |structure, seq|
+            structure << "create sequence #{seq.to_a.first.last};\n\n"
+          end
+
+          select_all("select table_name from user_tables").inject(s) do |structure, table|
+            ddl = "create table #{table.to_a.first.last} (\n "  
+            cols = select_all(%Q{
+              select column_name, data_type, data_length, data_precision, data_scale, data_default, nullable
+              from user_tab_columns
+              where table_name = '#{table.to_a.first.last}'
+              order by column_id
+            }).map do |row|              
+              col = "#{row['column_name'].downcase} #{row['data_type'].downcase}"      
+              if row['data_type'] =='NUMBER' and !row['data_precision'].nil?
+                col << "(#{row['data_precision'].to_i}"
+                col << ",#{row['data_scale'].to_i}" if !row['data_scale'].nil?
+                col << ')'
+              elsif row['data_type'].include?('CHAR')
+                col << "(#{row['data_length'].to_i})"  
+              end
+              col << " default #{row['data_default']}" if !row['data_default'].nil?
+              col << ' not null' if row['nullable'] == 'N'
+              col
+            end
+            ddl << cols.join(",\n ")
+            ddl << ");\n\n"
+            structure << ddl
+          end
+        end
+
+        def structure_drop #:nodoc:
+          s = select_all("select sequence_name from user_sequences").inject("") do |drop, seq|
+            drop << "drop sequence #{seq.to_a.first.last};\n\n"
+          end
+
+          select_all("select table_name from user_tables").inject(s) do |drop, table|
+            drop << "drop table #{table.to_a.first.last} cascade constraints;\n\n"
+          end
+        end
+
+
+        private
+
+        def select(sql, name = nil)
+          cursor = execute(sql, name)
+          cols = cursor.get_col_names.map { |x| oracle_downcase(x) }
+          rows = []
+
+          while row = cursor.fetch
+            hash = Hash.new
+
+            cols.each_with_index do |col, i|
+              hash[col] =
+                case row[i]
+                when OCI8::LOB
+                  name == 'Writable Large Object' ? row[i]: row[i].read
+                when OraDate
+                  (row[i].hour == 0 and row[i].minute == 0 and row[i].second == 0) ?
+                  row[i].to_date : row[i].to_time
+                else row[i]
+                end unless col == 'raw_rnum_'
+            end
+
+            rows << hash
+          end
+
+          rows
+        ensure
+          cursor.close if cursor
+        end
+
+        # Oracle column names by default are case-insensitive, but treated as upcase;
+        # for neatness, we'll downcase within Rails. EXCEPT that folks CAN quote
+        # their column names when creating Oracle tables, which makes then case-sensitive.
+        # I don't know anybody who does this, but we'll handle the theoretical case of a
+        # camelCase column name. I imagine other dbs handle this different, since there's a
+        # unit test that's currently failing test_oci.
+        def oracle_downcase(column_name)
+          column_name =~ /[a-z]/ ? column_name : column_name.downcase
+        end
+
+      end
+    end
+  end
+
+
+  class OCI8 #:nodoc:
+
+    # This OCI8 patch may not longer be required with the upcoming
+    # release of version 0.2.
+    class Cursor #:nodoc:
+      alias :define_a_column_pre_ar :define_a_column
+      def define_a_column(i)
+        case do_ocicall(@ctx) { @parms[i - 1].attrGet(OCI_ATTR_DATA_TYPE) }
+        when 8    : @stmt.defineByPos(i, String, 65535) # Read LONG values
+        when 187  : @stmt.defineByPos(i, OraDate) # Read TIMESTAMP values
+        when 108
+          if @parms[i - 1].attrGet(OCI_ATTR_TYPE_NAME) == 'XMLTYPE'
+            @stmt.defineByPos(i, String, 65535)
+          else
+            raise 'unsupported datatype'
+          end
+        else define_a_column_pre_ar i
+        end
+      end
+    end
+
+    # missing constant from oci8 < 0.1.14
+    OCI_PTYPE_UNK = 0 unless defined?(OCI_PTYPE_UNK)
+
+    # Uses the describeAny OCI call to find the target owner and table_name
+    # indicated by +name+, parsing through synonynms as necessary. Returns
+    # an array of [owner, table_name].
+    def describe(name)
+      @desc ||= @@env.alloc(OCIDescribe)
+      @desc.attrSet(OCI_ATTR_DESC_PUBLIC, -1) if VERSION >= '0.1.14'
+      @desc.describeAny(@svc, name.to_s, OCI_PTYPE_UNK)
+      info = @desc.attrGet(OCI_ATTR_PARAM)
+
+      case info.attrGet(OCI_ATTR_PTYPE)
+      when OCI_PTYPE_TABLE, OCI_PTYPE_VIEW
+        owner      = info.attrGet(OCI_ATTR_OBJ_SCHEMA)
+        table_name = info.attrGet(OCI_ATTR_OBJ_NAME)
+        [owner, table_name]
+      when OCI_PTYPE_SYN
+        schema = info.attrGet(OCI_ATTR_SCHEMA_NAME)
+        name   = info.attrGet(OCI_ATTR_NAME)
+        describe(schema + '.' + name)
+      end
+    end
+
+  end
+
+
+  # The OracleConnectionFactory factors out the code necessary to connect and
+  # configure an Oracle/OCI connection.
+  class OracleConnectionFactory #:nodoc:
+    def new_connection(username, password, database)
+      conn = OCI8.new username, password, database
+      conn.exec %q{alter session set nls_date_format = 'YYYY-MM-DD HH24:MI:SS'}
+      conn.exec %q{alter session set nls_timestamp_format = 'YYYY-MM-DD HH24:MI:SS'} rescue nil
+      conn.autocommit = true
+      conn
+    end
+  end
+
+
+  # The OCI8AutoRecover class enhances the OCI8 driver with auto-recover and
+  # reset functionality. If a call to #exec fails, and autocommit is turned on
+  # (ie., we're not in the middle of a longer transaction), it will 
+  # automatically reconnect and try again. If autocommit is turned off,
+  # this would be dangerous (as the earlier part of the implied transaction
+  # may have failed silently if the connection died) -- so instead the 
+  # connection is marked as dead, to be reconnected on it's next use.
+  class OCI8AutoRecover < DelegateClass(OCI8) #:nodoc:
+    attr_accessor :active
+    alias :active? :active
+
+    cattr_accessor :auto_retry
+    class << self
+      alias :auto_retry? :auto_retry
+    end
+    @@auto_retry = false
+
+    def initialize(config, factory = OracleConnectionFactory.new)
+      @active = true
+      @username, @password, @database = config[:username], config[:password], config[:database]
+      @factory = factory
+      @connection  = @factory.new_connection @username, @password, @database
+      super @connection
+    end
+
+    # Checks connection, returns true if active. Note that ping actively
+    # checks the connection, while #active? simply returns the last
+    # known state.
+    def ping
+      @connection.exec("select 1 from dual") { |r| nil }
+      @active = true
+    rescue
+      @active = false
+      raise
+    end
+
+    # Resets connection, by logging off and creating a new connection.
+    def reset!
+      logoff rescue nil
+      begin
+        @connection = @factory.new_connection @username, @password, @database
+        __setobj__ @connection
+        @active = true
+      rescue
+        @active = false
+        raise
+      end
+    end
+
+    # ORA-00028: your session has been killed
+    # ORA-01012: not logged on 
+    # ORA-03113: end-of-file on communication channel
+    # ORA-03114: not connected to ORACLE
+    LOST_CONNECTION_ERROR_CODES = [ 28, 1012, 3113, 3114 ]
+
+    # Adds auto-recovery functionality.
+    #
+    # See: http://www.jiubao.org/ruby-oci8/api.en.html#label-11
+    def exec(sql, *bindvars)
+      should_retry = self.class.auto_retry? && autocommit?
+
+      begin
+        @connection.exec(sql, *bindvars)
+      rescue OCIException => e
+        raise unless LOST_CONNECTION_ERROR_CODES.include?(e.code)
+        @active = false
+        raise unless should_retry
+        should_retry = false
+        reset! rescue nil
+        retry
+      end
+    end
+
+  end
+
+rescue LoadError
+  # OCI8 driver is unavailable.
+  module ActiveRecord # :nodoc:
+    class Base
+      def self.oracle_connection(config) # :nodoc:
+        # Set up a reasonable error message
+        raise LoadError, "Oracle/OCI libraries could not be loaded."
+      end
+      def self.oci_connection(config) # :nodoc:
+        # Set up a reasonable error message
+        raise LoadError, "Oracle/OCI libraries could not be loaded."
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

@@ -0,0 +1,507 @@
+require 'active_record/connection_adapters/abstract_adapter'
+
+module ActiveRecord
+  class Base
+    # Establishes a connection to the database that's used by all Active Record objects
+    def self.postgresql_connection(config) # :nodoc:
+      require_library_or_gem 'postgres' unless self.class.const_defined?(:PGconn)
+
+      config = config.symbolize_keys
+      host     = config[:host]
+      port     = config[:port]     || 5432 unless host.nil?
+      username = config[:username].to_s
+      password = config[:password].to_s
+
+      min_messages = config[:min_messages]
+
+      if config.has_key?(:database)
+        database = config[:database]
+      else
+        raise ArgumentError, "No database specified. Missing argument: database."
+      end
+
+      pga = ConnectionAdapters::PostgreSQLAdapter.new(
+        PGconn.connect(host, port, "", "", database, username, password), logger, config
+      )
+
+      PGconn.translate_results = false if PGconn.respond_to? :translate_results=
+
+      pga.schema_search_path = config[:schema_search_path] || config[:schema_order]
+
+      pga
+    end
+  end
+
+  module ConnectionAdapters
+    # The PostgreSQL adapter works both with the C-based (http://www.postgresql.jp/interfaces/ruby/) and the Ruby-base
+    # (available both as gem and from http://rubyforge.org/frs/?group_id=234&release_id=1145) drivers.
+    #
+    # Options:
+    #
+    # * <tt>:host</tt> -- Defaults to localhost
+    # * <tt>:port</tt> -- Defaults to 5432
+    # * <tt>:username</tt> -- Defaults to nothing
+    # * <tt>:password</tt> -- Defaults to nothing
+    # * <tt>:database</tt> -- The name of the database. No default, must be provided.
+    # * <tt>:schema_search_path</tt> -- An optional schema search path for the connection given as a string of comma-separated schema names.  This is backward-compatible with the :schema_order option.
+    # * <tt>:encoding</tt> -- An optional client encoding that is using in a SET client_encoding TO <encoding> call on connection.
+    # * <tt>:min_messages</tt> -- An optional client min messages that is using in a SET client_min_messages TO <min_messages> call on connection.
+    class PostgreSQLAdapter < AbstractAdapter
+      def adapter_name
+        'PostgreSQL'
+      end
+
+      def initialize(connection, logger, config = {})
+        super(connection, logger)
+        @config = config
+        configure_connection
+      end
+
+      # Is this connection alive and ready for queries?
+      def active?
+        if @connection.respond_to?(:status)
+          @connection.status == PGconn::CONNECTION_OK
+        else
+          @connection.query 'SELECT 1'
+          true
+        end
+      # postgres-pr raises a NoMethodError when querying if no conn is available
+      rescue PGError, NoMethodError
+        false      
+      end
+
+      # Close then reopen the connection.
+      def reconnect!
+        # TODO: postgres-pr doesn't have PGconn#reset.
+        if @connection.respond_to?(:reset)
+          @connection.reset
+          configure_connection
+        end
+      end
+      
+      def disconnect!
+        # Both postgres and postgres-pr respond to :close
+        @connection.close rescue nil
+      end
+
+      def native_database_types
+        {
+          :primary_key => "serial primary key",
+          :string      => { :name => "character varying", :limit => 255 },
+          :text        => { :name => "text" },
+          :integer     => { :name => "integer" },
+          :float       => { :name => "float" },
+          :datetime    => { :name => "timestamp" },
+          :timestamp   => { :name => "timestamp" },
+          :time        => { :name => "time" },
+          :date        => { :name => "date" },
+          :binary      => { :name => "bytea" },
+          :boolean     => { :name => "boolean" }
+        }
+      end
+      
+      def supports_migrations?
+        true
+      end      
+      
+      def table_alias_length
+        63
+      end
+
+      # QUOTING ==================================================
+
+      def quote(value, column = nil)
+        if value.kind_of?(String) && column && column.type == :binary
+          "'#{escape_bytea(value)}'"
+        else
+          super
+        end
+      end
+
+      def quote_column_name(name)
+        %("#{name}")
+      end
+
+
+      # DATABASE STATEMENTS ======================================
+
+      def select_all(sql, name = nil) #:nodoc:
+        select(sql, name)
+      end
+
+      def select_one(sql, name = nil) #:nodoc:
+        result = select(sql, name)
+        result.first if result
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
+        execute(sql, name)
+        table = sql.split(" ", 4)[2]
+        id_value || last_insert_id(table, sequence_name || default_sequence_name(table, pk))
+      end
+
+      def query(sql, name = nil) #:nodoc:
+        log(sql, name) { @connection.query(sql) }
+      end
+
+      def execute(sql, name = nil) #:nodoc:
+        log(sql, name) { @connection.exec(sql) }
+      end
+
+      def update(sql, name = nil) #:nodoc:
+        execute(sql, name).cmdtuples
+      end
+
+      alias_method :delete, :update #:nodoc:
+
+
+      def begin_db_transaction #:nodoc:
+        execute "BEGIN"
+      end
+
+      def commit_db_transaction #:nodoc:
+        execute "COMMIT"
+      end
+      
+      def rollback_db_transaction #:nodoc:
+        execute "ROLLBACK"
+      end
+
+
+      # SCHEMA STATEMENTS ========================================
+
+      # Return the list of all tables in the schema search path.
+      def tables(name = nil) #:nodoc:
+        schemas = schema_search_path.split(/,/).map { |p| quote(p) }.join(',')
+        query(<<-SQL, name).map { |row| row[0] }
+          SELECT tablename
+            FROM pg_tables
+           WHERE schemaname IN (#{schemas})
+        SQL
+      end
+
+      def indexes(table_name, name = nil) #:nodoc:
+        result = query(<<-SQL, name)
+          SELECT i.relname, d.indisunique, a.attname
+            FROM pg_class t, pg_class i, pg_index d, pg_attribute a
+           WHERE i.relkind = 'i'
+             AND d.indexrelid = i.oid
+             AND d.indisprimary = 'f'
+             AND t.oid = d.indrelid
+             AND t.relname = '#{table_name}'
+             AND a.attrelid = t.oid
+             AND ( d.indkey[0]=a.attnum OR d.indkey[1]=a.attnum
+                OR d.indkey[2]=a.attnum OR d.indkey[3]=a.attnum
+                OR d.indkey[4]=a.attnum OR d.indkey[5]=a.attnum
+                OR d.indkey[6]=a.attnum OR d.indkey[7]=a.attnum
+                OR d.indkey[8]=a.attnum OR d.indkey[9]=a.attnum )
+          ORDER BY i.relname
+        SQL
+
+        current_index = nil
+        indexes = []
+
+        result.each do |row|
+          if current_index != row[0]
+            indexes << IndexDefinition.new(table_name, row[0], row[1] == "t", [])
+            current_index = row[0]
+          end
+
+          indexes.last.columns << row[2]
+        end
+
+        indexes
+      end
+
+      def columns(table_name, name = nil) #:nodoc:
+        column_definitions(table_name).collect do |name, type, default, notnull|
+          Column.new(name, default_value(default), translate_field_type(type),
+            notnull == "f")
+        end
+      end
+
+      # Set the schema search path to a string of comma-separated schema names.
+      # Names beginning with $ are quoted (e.g. $user => '$user')
+      # See http://www.postgresql.org/docs/8.0/interactive/ddl-schemas.html
+      def schema_search_path=(schema_csv) #:nodoc:
+        if schema_csv
+          execute "SET search_path TO #{schema_csv}"
+          @schema_search_path = nil
+        end
+      end
+
+      def schema_search_path #:nodoc:
+        @schema_search_path ||= query('SHOW search_path')[0][0]
+      end
+
+      def default_sequence_name(table_name, pk = nil)
+        default_pk, default_seq = pk_and_sequence_for(table_name)
+        default_seq || "#{table_name}_#{pk || default_pk || 'id'}_seq"
+      end
+
+      # Resets sequence to the max value of the table's pk if present.
+      def reset_pk_sequence!(table, pk = nil, sequence = nil)
+        unless pk and sequence
+          default_pk, default_sequence = pk_and_sequence_for(table)
+          pk ||= default_pk
+          sequence ||= default_sequence
+        end
+        if pk
+          if sequence
+            select_value <<-end_sql, 'Reset sequence'
+              SELECT setval('#{sequence}', (SELECT COALESCE(MAX(#{pk})+(SELECT increment_by FROM #{sequence}), (SELECT min_value FROM #{sequence})) FROM #{table}), false)
+            end_sql
+          else
+            @logger.warn "#{table} has primary key #{pk} with no default sequence" if @logger
+          end
+        end
+      end
+
+      # Find a table's primary key and sequence.
+      def pk_and_sequence_for(table)
+        # First try looking for a sequence with a dependency on the
+        # given table's primary key.
+        result = execute(<<-end_sql, 'PK and serial sequence')[0]
+          SELECT attr.attname, name.nspname, seq.relname
+          FROM pg_class      seq,
+               pg_attribute  attr,
+               pg_depend     dep,
+               pg_namespace  name,
+               pg_constraint cons
+          WHERE seq.oid           = dep.objid
+            AND seq.relnamespace  = name.oid
+            AND seq.relkind       = 'S'
+            AND attr.attrelid     = dep.refobjid
+            AND attr.attnum       = dep.refobjsubid
+            AND attr.attrelid     = cons.conrelid
+            AND attr.attnum       = cons.conkey[1]
+            AND cons.contype      = 'p'
+            AND dep.refobjid      = '#{table}'::regclass
+        end_sql
+
+        if result.nil? or result.empty?
+          # If that fails, try parsing the primary key's default value.
+          # Support the 7.x and 8.0 nextval('foo'::text) as well as
+          # the 8.1+ nextval('foo'::regclass).
+          # TODO: assumes sequence is in same schema as table.
+          result = execute(<<-end_sql, 'PK and custom sequence')[0]
+            SELECT attr.attname, name.nspname, split_part(def.adsrc, '\\\'', 2)
+            FROM pg_class       t
+            JOIN pg_namespace   name ON (t.relnamespace = name.oid)
+            JOIN pg_attribute   attr ON (t.oid = attrelid)
+            JOIN pg_attrdef     def  ON (adrelid = attrelid AND adnum = attnum)
+            JOIN pg_constraint  cons ON (conrelid = adrelid AND adnum = conkey[1])
+            WHERE t.oid = '#{table}'::regclass
+              AND cons.contype = 'p'
+              AND def.adsrc ~* 'nextval'
+          end_sql
+        end
+        # check for existence of . in sequence name as in public.foo_sequence.  if it does not exist, join the current namespace
+        result.last['.'] ? [result.first, result.last] : [result.first, "#{result[1]}.#{result[2]}"]
+      rescue
+        nil
+      end
+
+      def rename_table(name, new_name)
+        execute "ALTER TABLE #{name} RENAME TO #{new_name}"
+      end
+            
+      def add_column(table_name, column_name, type, options = {})
+        execute("ALTER TABLE #{table_name} ADD #{column_name} #{type_to_sql(type, options[:limit])}")
+        execute("ALTER TABLE #{table_name} ALTER #{column_name} SET NOT NULL") if options[:null] == false
+        change_column_default(table_name, column_name, options[:default]) unless options[:default].nil?
+      end
+
+      def change_column(table_name, column_name, type, options = {}) #:nodoc:
+        begin
+          execute "ALTER TABLE #{table_name} ALTER  #{column_name} TYPE #{type_to_sql(type, options[:limit])}"
+        rescue ActiveRecord::StatementInvalid
+          # This is PG7, so we use a more arcane way of doing it.
+          begin_db_transaction
+          add_column(table_name, "#{column_name}_ar_tmp", type, options)
+          execute "UPDATE #{table_name} SET #{column_name}_ar_tmp = CAST(#{column_name} AS #{type_to_sql(type, options[:limit])})"
+          remove_column(table_name, column_name)
+          rename_column(table_name, "#{column_name}_ar_tmp", column_name)
+          commit_db_transaction
+        end
+        change_column_default(table_name, column_name, options[:default]) unless options[:default].nil?
+      end      
+
+      def change_column_default(table_name, column_name, default) #:nodoc:
+        execute "ALTER TABLE #{table_name} ALTER COLUMN #{column_name} SET DEFAULT '#{default}'"
+      end
+      
+      def rename_column(table_name, column_name, new_column_name) #:nodoc:
+        execute "ALTER TABLE #{table_name} RENAME COLUMN #{column_name} TO #{new_column_name}"
+      end
+
+      def remove_index(table_name, options) #:nodoc:
+        execute "DROP INDEX #{index_name(table_name, options)}"
+      end
+
+      private
+        BYTEA_COLUMN_TYPE_OID = 17
+        TIMESTAMPOID = 1114
+        TIMESTAMPTZOID = 1184
+
+        def configure_connection
+          if @config[:encoding]
+            execute("SET client_encoding TO '#{@config[:encoding]}'")
+          end
+          if @config[:min_messages]
+            execute("SET client_min_messages TO '#{@config[:min_messages]}'")
+          end
+        end
+
+        def last_insert_id(table, sequence_name)
+          Integer(select_value("SELECT currval('#{sequence_name}')"))
+        end
+
+        def select(sql, name = nil)
+          res = execute(sql, name)
+          results = res.result
+          rows = []
+          if results.length > 0
+            fields = res.fields
+            results.each do |row|
+              hashed_row = {}
+              row.each_index do |cel_index|
+                column = row[cel_index]
+                
+                case res.type(cel_index)
+                  when BYTEA_COLUMN_TYPE_OID
+                    column = unescape_bytea(column)
+                  when TIMESTAMPTZOID, TIMESTAMPOID
+                    column = cast_to_time(column)
+                end
+
+                hashed_row[fields[cel_index]] = column
+              end
+              rows << hashed_row
+            end
+          end
+          return rows
+        end
+
+        def escape_bytea(s)
+          if PGconn.respond_to? :escape_bytea
+            self.class.send(:define_method, :escape_bytea) do |s|
+              PGconn.escape_bytea(s) if s
+            end
+          else
+            self.class.send(:define_method, :escape_bytea) do |s|
+              if s
+                result = ''
+                s.each_byte { |c| result << sprintf('\\\\%03o', c) }
+                result
+              end
+            end
+          end
+          escape_bytea(s)
+        end
+
+        def unescape_bytea(s)
+          if PGconn.respond_to? :unescape_bytea
+            self.class.send(:define_method, :unescape_bytea) do |s|
+              PGconn.unescape_bytea(s) if s
+            end
+          else
+            self.class.send(:define_method, :unescape_bytea) do |s|
+              if s
+                result = ''
+                i, max = 0, s.size
+                while i < max
+                  char = s[i]
+                  if char == ?\\
+                    if s[i+1] == ?\\
+                      char = ?\\
+                      i += 1
+                    else
+                      char = s[i+1..i+3].oct
+                      i += 3
+                    end
+                  end
+                  result << char
+                  i += 1
+                end
+                result
+              end
+            end
+          end
+          unescape_bytea(s)
+        end
+        
+        # Query a table's column names, default values, and types.
+        #
+        # The underlying query is roughly:
+        #  SELECT column.name, column.type, default.value
+        #    FROM column LEFT JOIN default
+        #      ON column.table_id = default.table_id
+        #     AND column.num = default.column_num
+        #   WHERE column.table_id = get_table_id('table_name')
+        #     AND column.num > 0
+        #     AND NOT column.is_dropped
+        #   ORDER BY column.num
+        #
+        # If the table name is not prefixed with a schema, the database will
+        # take the first match from the schema search path.
+        #
+        # Query implementation notes:
+        #  - format_type includes the column size constraint, e.g. varchar(50)
+        #  - ::regclass is a function that gives the id for a table name
+        def column_definitions(table_name)
+          query <<-end_sql
+            SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull
+              FROM pg_attribute a LEFT JOIN pg_attrdef d
+                ON a.attrelid = d.adrelid AND a.attnum = d.adnum
+             WHERE a.attrelid = '#{table_name}'::regclass
+               AND a.attnum > 0 AND NOT a.attisdropped
+             ORDER BY a.attnum
+          end_sql
+        end
+
+        # Translate PostgreSQL-specific types into simplified SQL types.
+        # These are special cases; standard types are handled by
+        # ConnectionAdapters::Column#simplified_type.
+        def translate_field_type(field_type)
+          # Match the beginning of field_type since it may have a size constraint on the end.
+          case field_type
+            when /^timestamp/i    then 'datetime'
+            when /^real|^money/i  then 'float'
+            when /^interval/i     then 'string'
+            # geometric types (the line type is currently not implemented in postgresql)
+            when /^(?:point|lseg|box|"?path"?|polygon|circle)/i  then 'string' 
+            when /^bytea/i        then 'binary'
+            else field_type       # Pass through standard types.
+          end
+        end
+
+        def default_value(value)
+          # Boolean types
+          return "t" if value =~ /true/i
+          return "f" if value =~ /false/i
+          
+          # Char/String/Bytea type values
+          return $1 if value =~ /^'(.*)'::(bpchar|text|character varying|bytea)$/
+          
+          # Numeric values
+          return value if value =~ /^-?[0-9]+(\.[0-9]*)?/
+
+          # Fixed dates / times
+          return $1 if value =~ /^'(.+)'::(date|timestamp)/
+          
+          # Anything else is blank, some user type, or some function
+          # and we can't know the value of that, so return nil.
+          return nil
+        end
+
+        # Only needed for DateTime instances
+        def cast_to_time(value)
+          return value unless value.class == DateTime
+          v = value
+          time_array = [v.year, v.month, v.day, v.hour, v.min, v.sec]
+          Time.send(Base.default_timezone, *time_array) rescue nil
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb

@@ -0,0 +1,371 @@
+# Author: Luke Holden <lholden@cablelan.net>
+# Updated for SQLite3: Jamis Buck <jamis@37signals.com>
+
+require 'active_record/connection_adapters/abstract_adapter'
+
+module ActiveRecord
+  class Base
+    class << self
+      # sqlite3 adapter reuses sqlite_connection.
+      def sqlite3_connection(config) # :nodoc:
+        parse_config!(config)
+
+        unless self.class.const_defined?(:SQLite3)
+          require_library_or_gem(config[:adapter])
+        end
+
+        db = SQLite3::Database.new(
+          config[:database],
+          :results_as_hash => true,
+          :type_translation => false
+        )
+        ConnectionAdapters::SQLiteAdapter.new(db, logger)
+      end
+
+      # Establishes a connection to the database that's used by all Active Record objects
+      def sqlite_connection(config) # :nodoc:
+        parse_config!(config)
+
+        unless self.class.const_defined?(:SQLite)
+          require_library_or_gem(config[:adapter])
+
+          db = SQLite::Database.new(config[:database], 0)
+          db.show_datatypes   = "ON" if !defined? SQLite::Version
+          db.results_as_hash  = true if defined? SQLite::Version
+          db.type_translation = false
+
+          # "Downgrade" deprecated sqlite API
+          if SQLite.const_defined?(:Version)
+            ConnectionAdapters::SQLite2Adapter.new(db, logger)
+          else
+            ConnectionAdapters::DeprecatedSQLiteAdapter.new(db, logger)
+          end
+        end
+      end
+
+      private
+        def parse_config!(config)
+          config[:database] ||= config[:dbfile]
+          # Require database.
+          unless config[:database]
+            raise ArgumentError, "No database file specified. Missing argument: database"
+          end
+
+          # Allow database path relative to RAILS_ROOT, but only if
+          # the database path is not the special path that tells
+          # Sqlite build a database only in memory.
+          if Object.const_defined?(:RAILS_ROOT) && ':memory:' != config[:database]
+            config[:database] = File.expand_path(config[:database], RAILS_ROOT)
+          end
+        end
+    end
+  end
+
+  module ConnectionAdapters #:nodoc:
+    class SQLiteColumn < Column #:nodoc:
+      class <<  self
+        def string_to_binary(value)
+          value.gsub(/\0|\%/) do |b|
+            case b
+              when "\0" then "%00"
+              when "%"  then "%25"
+            end
+          end                
+        end
+        
+        def binary_to_string(value)
+          value.gsub(/%00|%25/) do |b|
+            case b
+              when "%00" then "\0"
+              when "%25" then "%"
+            end
+          end                
+        end
+      end
+    end
+
+    # The SQLite adapter works with both the 2.x and 3.x series of SQLite with the sqlite-ruby drivers (available both as gems and
+    # from http://rubyforge.org/projects/sqlite-ruby/).
+    #
+    # Options:
+    #
+    # * <tt>:database</tt> -- Path to the database file.
+    class SQLiteAdapter < AbstractAdapter
+      def adapter_name #:nodoc:
+        'SQLite'
+      end
+
+      def supports_migrations? #:nodoc:
+        true
+      end
+      
+      def supports_count_distinct? #:nodoc:
+        false
+      end
+
+      def native_database_types #:nodoc:
+        {
+          :primary_key => "INTEGER PRIMARY KEY NOT NULL",
+          :string      => { :name => "varchar", :limit => 255 },
+          :text        => { :name => "text" },
+          :integer     => { :name => "integer" },
+          :float       => { :name => "float" },
+          :datetime    => { :name => "datetime" },
+          :timestamp   => { :name => "datetime" },
+          :time        => { :name => "datetime" },
+          :date        => { :name => "date" },
+          :binary      => { :name => "blob" },
+          :boolean     => { :name => "boolean" }
+        }
+      end
+
+
+      # QUOTING ==================================================
+
+      def quote_string(s) #:nodoc:
+        @connection.class.quote(s)
+      end
+
+      def quote_column_name(name) #:nodoc:
+        %Q("#{name}")
+      end
+
+
+      # DATABASE STATEMENTS ======================================
+
+      def execute(sql, name = nil) #:nodoc:
+        catch_schema_changes { log(sql, name) { @connection.execute(sql) } }
+      end
+
+      def update(sql, name = nil) #:nodoc:
+        execute(sql, name)
+        @connection.changes
+      end
+
+      def delete(sql, name = nil) #:nodoc:
+        sql += " WHERE 1=1" unless sql =~ /WHERE/i
+        execute(sql, name)
+        @connection.changes
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc:
+        execute(sql, name = nil)
+        id_value || @connection.last_insert_row_id
+      end
+
+      def select_all(sql, name = nil) #:nodoc:
+        execute(sql, name).map do |row|
+          record = {}
+          row.each_key do |key|
+            if key.is_a?(String)
+              record[key.sub(/^\w+\./, '')] = row[key]
+            end
+          end
+          record
+        end
+      end
+
+      def select_one(sql, name = nil) #:nodoc:
+        result = select_all(sql, name)
+        result.nil? ? nil : result.first
+      end
+
+
+      def begin_db_transaction #:nodoc:
+        catch_schema_changes { @connection.transaction }
+      end
+      
+      def commit_db_transaction #:nodoc:
+        catch_schema_changes { @connection.commit }
+      end
+
+      def rollback_db_transaction #:nodoc:
+        catch_schema_changes { @connection.rollback }
+      end
+
+
+      # SCHEMA STATEMENTS ========================================
+
+      def tables(name = nil) #:nodoc:
+        execute("SELECT name FROM sqlite_master WHERE type = 'table'", name).map do |row|
+          row[0]
+        end
+      end
+
+      def columns(table_name, name = nil) #:nodoc:
+        table_structure(table_name).map do |field|
+          SQLiteColumn.new(field['name'], field['dflt_value'], field['type'], field['notnull'] == "0")
+        end
+      end
+
+      def indexes(table_name, name = nil) #:nodoc:
+        execute("PRAGMA index_list(#{table_name})", name).map do |row|
+          index = IndexDefinition.new(table_name, row['name'])
+          index.unique = row['unique'] != '0'
+          index.columns = execute("PRAGMA index_info('#{index.name}')").map { |col| col['name'] }
+          index
+        end
+      end
+
+      def primary_key(table_name) #:nodoc:
+        column = table_structure(table_name).find {|field| field['pk'].to_i == 1}
+        column ? column['name'] : nil
+      end
+
+      def remove_index(table_name, options={}) #:nodoc:
+        execute "DROP INDEX #{quote_column_name(index_name(table_name, options))}"
+      end
+      
+      def rename_table(name, new_name)
+        move_table(name, new_name)
+      end
+
+      def add_column(table_name, column_name, type, options = {}) #:nodoc:
+        alter_table(table_name) do |definition|
+          definition.column(column_name, type, options)
+        end
+      end
+      
+      def remove_column(table_name, column_name) #:nodoc:
+        alter_table(table_name) do |definition|
+          definition.columns.delete(definition[column_name])
+        end
+      end
+      
+      def change_column_default(table_name, column_name, default) #:nodoc:
+        alter_table(table_name) do |definition|
+          definition[column_name].default = default
+        end
+      end
+
+      def change_column(table_name, column_name, type, options = {}) #:nodoc:
+        alter_table(table_name) do |definition|
+          definition[column_name].instance_eval do
+            self.type    = type
+            self.limit   = options[:limit] if options[:limit]
+            self.default = options[:default] if options[:default]
+          end
+        end
+      end
+
+      def rename_column(table_name, column_name, new_column_name) #:nodoc:
+        alter_table(table_name, :rename => {column_name => new_column_name})
+      end
+          
+
+      protected
+        def table_structure(table_name)
+          returning structure = execute("PRAGMA table_info(#{table_name})") do
+            raise ActiveRecord::StatementInvalid if structure.empty?
+          end
+        end
+        
+        def alter_table(table_name, options = {}) #:nodoc:
+          altered_table_name = "altered_#{table_name}"
+          caller = lambda {|definition| yield definition if block_given?}
+
+          transaction do
+            move_table(table_name, altered_table_name, 
+              options.merge(:temporary => true))
+            move_table(altered_table_name, table_name, &caller)
+          end
+        end
+        
+        def move_table(from, to, options = {}, &block) #:nodoc:
+          copy_table(from, to, options, &block)
+          drop_table(from)
+        end
+        
+        def copy_table(from, to, options = {}) #:nodoc:
+          create_table(to, options) do |@definition|
+            columns(from).each do |column|
+              column_name = options[:rename] ?
+                (options[:rename][column.name] ||
+                 options[:rename][column.name.to_sym] ||
+                 column.name) : column.name
+
+              @definition.column(column_name, column.type, 
+                :limit => column.limit, :default => column.default,
+                :null => column.null)
+            end
+            @definition.primary_key(primary_key(from))
+            yield @definition if block_given?
+          end
+          
+          copy_table_indexes(from, to)
+          copy_table_contents(from, to, 
+            @definition.columns.map {|column| column.name}, 
+            options[:rename] || {})
+        end
+        
+        def copy_table_indexes(from, to) #:nodoc:
+          indexes(from).each do |index|
+            name = index.name
+            if to == "altered_#{from}"
+              name = "temp_#{name}"
+            elsif from == "altered_#{to}"
+              name = name[5..-1]
+            end
+
+            opts = { :name => name }
+            opts[:unique] = true if index.unique
+            add_index(to, index.columns, opts)
+          end
+        end
+        
+        def copy_table_contents(from, to, columns, rename = {}) #:nodoc:
+          column_mappings = Hash[*columns.map {|name| [name, name]}.flatten]
+          rename.inject(column_mappings) {|map, a| map[a.last] = a.first; map}
+          
+          @connection.execute "SELECT * FROM #{from}" do |row|
+            sql = "INSERT INTO #{to} VALUES ("
+            sql << columns.map {|col| quote row[column_mappings[col]]} * ', '
+            sql << ')'
+            @connection.execute sql
+          end
+        end
+        
+        def catch_schema_changes
+          return yield
+        rescue ActiveRecord::StatementInvalid => exception
+          if exception.message =~ /database schema has changed/
+            reconnect!
+            retry
+          else
+            raise
+          end
+        end
+    end
+    
+    class SQLite2Adapter < SQLiteAdapter # :nodoc:
+      # SQLite 2 does not support COUNT(DISTINCT) queries:
+      #
+      #   select COUNT(DISTINCT ArtistID) from CDs;    
+      #
+      # In order to get  the number of artists we execute the following statement
+      # 
+      #   SELECT COUNT(ArtistID) FROM (SELECT DISTINCT ArtistID FROM CDs);
+      def execute(sql, name = nil) #:nodoc:
+        super(rewrite_count_distinct_queries(sql), name)
+      end
+      
+      def rewrite_count_distinct_queries(sql)
+        if sql =~ /count\(distinct ([^\)]+)\)( AS \w+)? (.*)/i
+          distinct_column = $1
+          distinct_query  = $3
+          column_name     = distinct_column.split('.').last
+          "SELECT COUNT(#{column_name}) FROM (SELECT DISTINCT #{distinct_column} #{distinct_query})"
+        else
+          sql
+        end
+      end
+    end
+
+    class DeprecatedSQLiteAdapter < SQLite2Adapter # :nodoc:
+      def insert(sql, name = nil, pk = nil, id_value = nil)
+        execute(sql, name = nil)
+        id_value || @connection.last_insert_rowid
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/connection_adapters/sqlserver_adapter.rb

@@ -0,0 +1,563 @@
+require 'active_record/connection_adapters/abstract_adapter'
+
+# sqlserver_adapter.rb -- ActiveRecord adapter for Microsoft SQL Server
+#
+# Author: Joey Gibson <joey@joeygibson.com>
+# Date:   10/14/2004
+#
+# Modifications: DeLynn Berry <delynnb@megastarfinancial.com>
+# Date: 3/22/2005
+#
+# Modifications (ODBC): Mark Imbriaco <mark.imbriaco@pobox.com>
+# Date: 6/26/2005
+#
+# Current maintainer: Ryan Tomayko <rtomayko@gmail.com>
+#
+# Modifications (Migrations): Tom Ward <tom@popdog.net>
+# Date: 27/10/2005
+#
+
+module ActiveRecord
+  class Base
+    def self.sqlserver_connection(config) #:nodoc:
+      require_library_or_gem 'dbi' unless self.class.const_defined?(:DBI)
+      
+      config = config.symbolize_keys
+
+      mode        = config[:mode] ? config[:mode].to_s.upcase : 'ADO'
+      username    = config[:username] ? config[:username].to_s : 'sa'
+      password    = config[:password] ? config[:password].to_s : ''
+      autocommit  = config.key?(:autocommit) ? config[:autocommit] : true
+      if mode == "ODBC"
+        raise ArgumentError, "Missing DSN. Argument ':dsn' must be set in order for this adapter to work." unless config.has_key?(:dsn)
+        dsn       = config[:dsn]
+        driver_url = "DBI:ODBC:#{dsn}"
+      else
+        raise ArgumentError, "Missing Database. Argument ':database' must be set in order for this adapter to work." unless config.has_key?(:database)
+        database  = config[:database]
+        host      = config[:host] ? config[:host].to_s : 'localhost'
+        driver_url = "DBI:ADO:Provider=SQLOLEDB;Data Source=#{host};Initial Catalog=#{database};User Id=#{username};Password=#{password};"
+      end
+      conn      = DBI.connect(driver_url, username, password)
+      conn["AutoCommit"] = autocommit
+      ConnectionAdapters::SQLServerAdapter.new(conn, logger, [driver_url, username, password])
+    end
+  end # class Base
+
+  module ConnectionAdapters
+    class ColumnWithIdentity < Column# :nodoc:
+      attr_reader :identity, :is_special, :scale
+
+      def initialize(name, default, sql_type = nil, is_identity = false, null = true, scale_value = 0)
+        super(name, default, sql_type, null)
+        @identity = is_identity
+        @is_special = sql_type =~ /text|ntext|image/i ? true : false
+        @scale = scale_value
+        # SQL Server only supports limits on *char and float types
+        @limit = nil unless @type == :float or @type == :string
+      end
+
+      def simplified_type(field_type)
+        case field_type
+          when /int|bigint|smallint|tinyint/i                        then :integer
+          when /float|double|decimal|money|numeric|real|smallmoney/i then @scale == 0 ? :integer : :float
+          when /datetime|smalldatetime/i                             then :datetime
+          when /timestamp/i                                          then :timestamp
+          when /time/i                                               then :time
+          when /text|ntext/i                                         then :text
+          when /binary|image|varbinary/i                             then :binary
+          when /char|nchar|nvarchar|string|varchar/i                 then :string
+          when /bit/i                                                then :boolean
+          when /uniqueidentifier/i                                   then :string
+        end
+      end
+
+      def type_cast(value)
+        return nil if value.nil? || value =~ /^\s*null\s*$/i
+        case type
+        when :string    then value
+        when :integer   then value == true || value == false ? value == true ? 1 : 0 : value.to_i
+        when :float     then value.to_f
+        when :datetime  then cast_to_datetime(value)
+        when :timestamp then cast_to_time(value)
+        when :time      then cast_to_time(value)
+        when :date      then cast_to_datetime(value)
+        when :boolean   then value == true or (value =~ /^t(rue)?$/i) == 0 or value.to_s == '1'
+        else value
+        end
+      end
+
+      def cast_to_time(value)
+        return value if value.is_a?(Time)
+        time_array = ParseDate.parsedate(value)
+        time_array[0] ||= 2000
+        time_array[1] ||= 1
+        time_array[2] ||= 1
+        Time.send(Base.default_timezone, *time_array) rescue nil
+      end
+
+      def cast_to_datetime(value)
+        if value.is_a?(Time)
+          if value.year != 0 and value.month != 0 and value.day != 0
+            return value
+          else
+            return Time.mktime(2000, 1, 1, value.hour, value.min, value.sec) rescue nil
+          end
+        end
+        return cast_to_time(value) if value.is_a?(Date) or value.is_a?(String) rescue nil
+        value
+      end
+
+      # These methods will only allow the adapter to insert binary data with a length of 7K or less
+      # because of a SQL Server statement length policy.
+      def self.string_to_binary(value)
+        value.gsub(/(\r|\n|\0|\x1a)/) do
+          case $1
+            when "\r"   then  "%00"
+            when "\n"   then  "%01"
+            when "\0"   then  "%02"
+            when "\x1a" then  "%03"
+          end
+        end
+      end
+
+      def self.binary_to_string(value)
+        value.gsub(/(%00|%01|%02|%03)/) do
+          case $1
+            when "%00"    then  "\r"
+            when "%01"    then  "\n"
+            when "%02\0"  then  "\0"
+            when "%03"    then  "\x1a"
+          end
+        end
+      end
+    end
+
+    # In ADO mode, this adapter will ONLY work on Windows systems, 
+    # since it relies on Win32OLE, which, to my knowledge, is only 
+    # available on Windows.
+    #
+    # This mode also relies on the ADO support in the DBI module. If you are using the
+    # one-click installer of Ruby, then you already have DBI installed, but
+    # the ADO module is *NOT* installed. You will need to get the latest
+    # source distribution of Ruby-DBI from http://ruby-dbi.sourceforge.net/
+    # unzip it, and copy the file 
+    # <tt>src/lib/dbd_ado/ADO.rb</tt> 
+    # to
+    # <tt>X:/Ruby/lib/ruby/site_ruby/1.8/DBD/ADO/ADO.rb</tt> 
+    # (you will more than likely need to create the ADO directory).
+    # Once you've installed that file, you are ready to go.
+    #
+    # In ODBC mode, the adapter requires the ODBC support in the DBI module which requires
+    # the Ruby ODBC module.  Ruby ODBC 0.996 was used in development and testing,
+    # and it is available at http://www.ch-werner.de/rubyodbc/
+    #
+    # Options:
+    #
+    # * <tt>:mode</tt>      -- ADO or ODBC. Defaults to ADO.
+    # * <tt>:username</tt>  -- Defaults to sa.
+    # * <tt>:password</tt>  -- Defaults to empty string.
+    #
+    # ADO specific options:
+    #
+    # * <tt>:host</tt>      -- Defaults to localhost.
+    # * <tt>:database</tt>  -- The name of the database. No default, must be provided.
+    #
+    # ODBC specific options:                   
+    #
+    # * <tt>:dsn</tt>       -- Defaults to nothing.
+    #
+    # ADO code tested on Windows 2000 and higher systems,
+    # running ruby 1.8.2 (2004-07-29) [i386-mswin32], and SQL Server 2000 SP3.
+    #
+    # ODBC code tested on a Fedora Core 4 system, running FreeTDS 0.63, 
+    # unixODBC 2.2.11, Ruby ODBC 0.996, Ruby DBI 0.0.23 and Ruby 1.8.2.
+    # [Linux strongmad 2.6.11-1.1369_FC4 #1 Thu Jun 2 22:55:56 EDT 2005 i686 i686 i386 GNU/Linux]
+    class SQLServerAdapter < AbstractAdapter
+    
+      def initialize(connection, logger, connection_options=nil)
+        super(connection, logger)
+        @connection_options = connection_options
+      end
+
+      def native_database_types
+        {
+          :primary_key => "int NOT NULL IDENTITY(1, 1) PRIMARY KEY",
+          :string      => { :name => "varchar", :limit => 255  },
+          :text        => { :name => "text" },
+          :integer     => { :name => "int" },
+          :float       => { :name => "float", :limit => 8 },
+          :datetime    => { :name => "datetime" },
+          :timestamp   => { :name => "datetime" },
+          :time        => { :name => "datetime" },
+          :date        => { :name => "datetime" },
+          :binary      => { :name => "image"},
+          :boolean     => { :name => "bit"}
+        }
+      end
+
+      def adapter_name
+        'SQLServer'
+      end
+      
+      def supports_migrations? #:nodoc:
+        true
+      end
+
+      # CONNECTION MANAGEMENT ====================================#
+
+      # Returns true if the connection is active.
+      def active?
+        @connection.execute("SELECT 1") { }
+        true
+      rescue DBI::DatabaseError, DBI::InterfaceError
+        false
+      end
+
+      # Reconnects to the database, returns false if no connection could be made.
+      def reconnect!
+        disconnect!
+        @connection = DBI.connect(*@connection_options)
+      rescue DBI::DatabaseError => e
+        @logger.warn "#{adapter_name} reconnection failed: #{e.message}" if @logger
+        false
+      end
+      
+      # Disconnects from the database
+      
+      def disconnect!
+        @connection.disconnect rescue nil
+      end
+
+      def select_all(sql, name = nil)
+        select(sql, name)
+      end
+
+      def select_one(sql, name = nil)
+        add_limit!(sql, :limit => 1)
+        result = select(sql, name)
+        result.nil? ? nil : result.first
+      end
+
+      def columns(table_name, name = nil)
+        return [] if table_name.blank?
+        table_name = table_name.to_s if table_name.is_a?(Symbol)
+        table_name = table_name.split('.')[-1] unless table_name.nil?
+        sql = "SELECT COLUMN_NAME as ColName, COLUMN_DEFAULT as DefaultValue, DATA_TYPE as ColType, IS_NULLABLE As IsNullable, COL_LENGTH('#{table_name}', COLUMN_NAME) as Length, COLUMNPROPERTY(OBJECT_ID('#{table_name}'), COLUMN_NAME, 'IsIdentity') as IsIdentity, NUMERIC_SCALE as Scale FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '#{table_name}'"
+        # Comment out if you want to have the Columns select statment logged.
+        # Personally, I think it adds unnecessary bloat to the log. 
+        # If you do comment it out, make sure to un-comment the "result" line that follows
+        result = log(sql, name) { @connection.select_all(sql) }
+        #result = @connection.select_all(sql)
+        columns = []
+        result.each do |field|
+          default = field[:DefaultValue].to_s.gsub!(/[()\']/,"") =~ /null/ ? nil : field[:DefaultValue]
+          type = "#{field[:ColType]}(#{field[:Length]})"
+          is_identity = field[:IsIdentity] == 1
+          is_nullable = field[:IsNullable] == 'YES'
+          columns << ColumnWithIdentity.new(field[:ColName], default, type, is_identity, is_nullable, field[:Scale])
+        end
+        columns
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
+        begin
+          table_name = get_table_name(sql)
+          col = get_identity_column(table_name)
+          ii_enabled = false
+
+          if col != nil
+            if query_contains_identity_column(sql, col)
+              begin
+                execute enable_identity_insert(table_name, true)
+                ii_enabled = true
+              rescue Exception => e
+                raise ActiveRecordError, "IDENTITY_INSERT could not be turned ON"
+              end
+            end
+          end
+          log(sql, name) do
+            @connection.execute(sql)
+            id_value || select_one("SELECT @@IDENTITY AS Ident")["Ident"]
+          end
+        ensure
+          if ii_enabled
+            begin
+              execute enable_identity_insert(table_name, false)
+            rescue Exception => e
+              raise ActiveRecordError, "IDENTITY_INSERT could not be turned OFF"
+            end
+          end
+        end
+      end
+
+      def execute(sql, name = nil)
+        if sql =~ /^\s*INSERT/i
+          insert(sql, name)
+        elsif sql =~ /^\s*UPDATE|^\s*DELETE/i
+          log(sql, name) do
+            @connection.execute(sql)
+            retVal = select_one("SELECT @@ROWCOUNT AS AffectedRows")["AffectedRows"]
+          end
+        else
+          log(sql, name) { @connection.execute(sql) }
+        end
+      end
+
+      def update(sql, name = nil)
+        execute(sql, name)
+      end
+      alias_method :delete, :update
+
+      def begin_db_transaction
+        @connection["AutoCommit"] = false
+      rescue Exception => e
+        @connection["AutoCommit"] = true
+      end
+
+      def commit_db_transaction
+        @connection.commit
+      ensure
+        @connection["AutoCommit"] = true
+      end
+
+      def rollback_db_transaction
+        @connection.rollback
+      ensure
+        @connection["AutoCommit"] = true
+      end
+
+      def quote(value, column = nil)
+        case value
+          when String                
+            if column && column.type == :binary && column.class.respond_to?(:string_to_binary)
+              "'#{quote_string(column.class.string_to_binary(value))}'"
+            else
+              "'#{quote_string(value)}'"
+            end
+          when NilClass              then "NULL"
+          when TrueClass             then '1'
+          when FalseClass            then '0'
+          when Float, Fixnum, Bignum then value.to_s
+          when Date                  then "'#{value.to_s}'" 
+          when Time, DateTime        then "'#{value.strftime("%Y-%m-%d %H:%M:%S")}'"
+          else                            "'#{quote_string(value.to_yaml)}'"
+        end
+      end
+
+      def quote_string(string)
+        string.gsub(/\'/, "''")
+      end
+
+      def quoted_true
+        "1"
+      end
+      
+      def quoted_false
+        "0"
+      end
+
+      def quote_column_name(name)
+        "[#{name}]"
+      end
+
+      def add_limit_offset!(sql, options)
+        if options[:limit] and options[:offset]
+          total_rows = @connection.select_all("SELECT count(*) as TotalRows from (#{sql.gsub(/\bSELECT\b/i, "SELECT TOP 1000000000")}) tally")[0][:TotalRows].to_i
+          if (options[:limit] + options[:offset]) >= total_rows
+            options[:limit] = (total_rows - options[:offset] >= 0) ? (total_rows - options[:offset]) : 0
+          end
+          sql.sub!(/^\s*SELECT/i, "SELECT * FROM (SELECT TOP #{options[:limit]} * FROM (SELECT TOP #{options[:limit] + options[:offset]} ")
+          sql << ") AS tmp1"
+          if options[:order]
+            options[:order] = options[:order].split(',').map do |field|
+              parts = field.split(" ")
+              tc = parts[0]
+              if sql =~ /\.\[/ and tc =~ /\./ # if column quoting used in query
+                tc.gsub!(/\./, '\\.\\[')
+                tc << '\\]'
+              end
+              if sql =~ /#{tc} AS (t\d_r\d\d?)/
+                  parts[0] = $1
+              end
+              parts.join(' ')
+            end.join(', ')
+            sql << " ORDER BY #{change_order_direction(options[:order])}) AS tmp2 ORDER BY #{options[:order]}"
+          else
+            sql << " ) AS tmp2"
+          end
+        elsif sql !~ /^\s*SELECT (@@|COUNT\()/i
+          sql.sub!(/^\s*SELECT([\s]*distinct)?/i) do
+            "SELECT#{$1} TOP #{options[:limit]}"
+          end unless options[:limit].nil?
+        end
+      end
+
+      def recreate_database(name)
+        drop_database(name)
+        create_database(name)
+      end
+
+      def drop_database(name)
+        execute "DROP DATABASE #{name}"
+      end
+
+      def create_database(name)
+        execute "CREATE DATABASE #{name}"
+      end
+   
+      def current_database
+        @connection.select_one("select DB_NAME()")[0]
+      end
+
+      def tables(name = nil)
+        execute("SELECT table_name from information_schema.tables WHERE table_type = 'BASE TABLE'", name).inject([]) do |tables, field|
+          table_name = field[0]
+          tables << table_name unless table_name == 'dtproperties'
+          tables
+        end
+      end
+
+      def indexes(table_name, name = nil)
+        indexes = []
+        execute("EXEC sp_helpindex #{table_name}", name).each do |index| 
+          unique = index[1] =~ /unique/
+          primary = index[1] =~ /primary key/
+          if !primary
+            indexes << IndexDefinition.new(table_name, index[0], unique, index[2].split(", "))
+          end
+        end
+        indexes
+      end
+            
+      def rename_table(name, new_name)
+        execute "EXEC sp_rename '#{name}', '#{new_name}'"
+      end
+      
+      def remove_column(table_name, column_name)
+        execute "ALTER TABLE #{table_name} DROP COLUMN #{column_name}"
+      end 
+      
+      def rename_column(table, column, new_column_name)
+        execute "EXEC sp_rename '#{table}.#{column}', '#{new_column_name}'"
+      end
+      
+      def change_column(table_name, column_name, type, options = {}) #:nodoc:
+        sql_commands = ["ALTER TABLE #{table_name} ALTER COLUMN #{column_name} #{type_to_sql(type, options[:limit])}"]
+        if options[:default]
+          remove_default_constraint(table_name, column_name)
+          sql_commands << "ALTER TABLE #{table_name} ADD CONSTRAINT DF_#{table_name}_#{column_name} DEFAULT #{options[:default]} FOR #{column_name}"
+        end
+        sql_commands.each {|c|
+          execute(c)
+        }
+      end
+      
+      def remove_column(table_name, column_name)
+        remove_default_constraint(table_name, column_name)
+        execute "ALTER TABLE #{table_name} DROP COLUMN #{column_name}"
+      end
+      
+      def remove_default_constraint(table_name, column_name)
+        defaults = select "select def.name from sysobjects def, syscolumns col, sysobjects tab where col.cdefault = def.id and col.name = '#{column_name}' and tab.name = '#{table_name}' and col.id = tab.id"
+        defaults.each {|constraint|
+          execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{constraint["name"]}"
+        }
+      end
+      
+      def remove_index(table_name, options = {})
+        execute "DROP INDEX #{table_name}.#{index_name(table_name, options)}"
+      end
+
+      def type_to_sql(type, limit = nil) #:nodoc:
+        native = native_database_types[type]
+        # if there's no :limit in the default type definition, assume that type doesn't support limits
+        limit = limit || native[:limit]
+        column_type_sql = native[:name]
+        column_type_sql << "(#{limit})" if limit
+        column_type_sql
+      end
+
+      private
+        def select(sql, name = nil)
+          rows = []
+          repair_special_columns(sql)
+          log(sql, name) do
+            @connection.select_all(sql) do |row|
+              record = {}
+              row.column_names.each do |col|
+                record[col] = row[col]
+                record[col] = record[col].to_time if record[col].is_a? DBI::Timestamp
+              end
+              rows << record
+            end
+          end
+          rows
+        end
+
+        def enable_identity_insert(table_name, enable = true)
+          if has_identity_column(table_name)
+            "SET IDENTITY_INSERT #{table_name} #{enable ? 'ON' : 'OFF'}"
+          end
+        end
+
+        def get_table_name(sql)
+          if sql =~ /^\s*insert\s+into\s+([^\(\s]+)\s*|^\s*update\s+([^\(\s]+)\s*/i
+            $1
+          elsif sql =~ /from\s+([^\(\s]+)\s*/i
+            $1
+          else
+            nil
+          end
+        end
+
+        def has_identity_column(table_name)
+          !get_identity_column(table_name).nil?
+        end
+
+        def get_identity_column(table_name)
+          @table_columns = {} unless @table_columns
+          @table_columns[table_name] = columns(table_name) if @table_columns[table_name] == nil
+          @table_columns[table_name].each do |col|
+            return col.name if col.identity
+          end
+
+          return nil
+        end
+
+        def query_contains_identity_column(sql, col)
+          sql =~ /\[#{col}\]/
+        end
+
+        def change_order_direction(order)
+          order.split(",").collect {|fragment|
+            case fragment
+              when  /\bDESC\b/i     then fragment.gsub(/\bDESC\b/i, "ASC")
+              when  /\bASC\b/i      then fragment.gsub(/\bASC\b/i, "DESC")
+              else                  String.new(fragment).split(',').join(' DESC,') + ' DESC'
+            end
+          }.join(",")
+        end
+
+        def get_special_columns(table_name)
+          special = []
+          @table_columns ||= {}
+          @table_columns[table_name] ||= columns(table_name)
+          @table_columns[table_name].each do |col|
+            special << col.name if col.is_special
+          end
+          special
+        end
+
+        def repair_special_columns(sql)
+          special_cols = get_special_columns(get_table_name(sql))
+          for col in special_cols.to_a
+            sql.gsub!(Regexp.new(" #{col.to_s} = "), " #{col.to_s} LIKE ")
+            sql.gsub!(/ORDER BY #{col.to_s}/i, '')
+          end
+          sql
+        end
+
+    end #class SQLServerAdapter < AbstractAdapter
+  end #module ConnectionAdapters
+end #module ActiveRecord

vendor/rails/activerecord/lib/active_record/connection_adapters/sybase_adapter.rb

@@ -0,0 +1,684 @@
+# sybase_adaptor.rb
+# Author: John Sheets <dev@metacasa.net>
+# Date:   01 Mar 2006
+#
+# Based on code from Will Sobel (http://dev.rubyonrails.org/ticket/2030)
+#
+# 17 Mar 2006: Added support for migrations; fixed issues with :boolean columns.
+#
+
+require 'active_record/connection_adapters/abstract_adapter'
+
+begin
+require 'sybsql'
+
+module ActiveRecord
+  class Base
+    # Establishes a connection to the database that's used by all Active Record objects
+    def self.sybase_connection(config) # :nodoc:
+      config = config.symbolize_keys
+
+      username = config[:username] ? config[:username].to_s : 'sa'
+      password = config[:password] ? config[:password].to_s : ''
+
+      if config.has_key?(:host)
+        host = config[:host]
+      else
+        raise ArgumentError, "No database server name specified. Missing argument: host."
+      end
+
+      if config.has_key?(:database)
+        database = config[:database]
+      else
+        raise ArgumentError, "No database specified. Missing argument: database."
+      end
+
+      ConnectionAdapters::SybaseAdapter.new(
+        SybSQL.new({'S' => host, 'U' => username, 'P' => password},
+          ConnectionAdapters::SybaseAdapterContext), database, logger)
+    end
+  end # class Base
+
+  module ConnectionAdapters
+
+    # ActiveRecord connection adapter for Sybase Open Client bindings
+    # (see http://raa.ruby-lang.org/project/sybase-ctlib).
+    #
+    # Options:
+    #
+    # * <tt>:host</tt> -- The name of the database server. No default, must be provided.
+    # * <tt>:database</tt> -- The name of the database. No default, must be provided.
+    # * <tt>:username</tt>  -- Defaults to sa.
+    # * <tt>:password</tt>  -- Defaults to empty string.
+    #
+    # Usage Notes:
+    #
+    # * The sybase-ctlib bindings do not support the DATE SQL column type; use DATETIME instead.
+    # * Table and column names are limited to 30 chars in Sybase 12.5
+    # * :binary columns not yet supported
+    # * :boolean columns use the BIT SQL type, which does not allow nulls or 
+    #   indexes.  If a DEFAULT is not specified for ALTER TABLE commands, the
+    #   column will be declared with DEFAULT 0 (false).
+    #
+    # Migrations:
+    #
+    # The Sybase adapter supports migrations, but for ALTER TABLE commands to
+    # work, the database must have the database option 'select into' set to
+    # 'true' with sp_dboption (see below).  The sp_helpdb command lists the current
+    # options for all databases.
+    #
+    #   1> use mydb
+    #   2> go
+    #   1> master..sp_dboption mydb, "select into", true
+    #   2> go
+    #   1> checkpoint
+    #   2> go
+    class SybaseAdapter < AbstractAdapter # :nodoc:
+      class ColumnWithIdentity < Column
+        attr_reader :identity, :primary
+
+        def initialize(name, default, sql_type = nil, nullable = nil, identity = nil, primary = nil)
+          super(name, default, sql_type, nullable)
+          @default, @identity, @primary = type_cast(default), identity, primary
+        end
+
+        def simplified_type(field_type)
+          case field_type
+            when /int|bigint|smallint|tinyint/i                        then :integer
+            when /float|double|decimal|money|numeric|real|smallmoney/i then :float
+            when /text|ntext/i                                         then :text
+            when /binary|image|varbinary/i                             then :binary
+            when /char|nchar|nvarchar|string|varchar/i                 then :string
+            when /bit/i                                                then :boolean
+            when /datetime|smalldatetime/i                             then :datetime
+            else                                                       super
+          end
+        end
+
+        def self.string_to_binary(value)
+          "0x#{value.unpack("H*")[0]}"
+        end
+
+        def self.binary_to_string(value)
+          # FIXME: sybase-ctlib uses separate sql method for binary columns.
+          value
+        end
+      end # class ColumnWithIdentity
+
+      # Sybase adapter
+      def initialize(connection, database, logger = nil)
+        super(connection, logger)
+        context = connection.context
+        context.init(logger)
+        @limit = @offset = 0
+        unless connection.sql_norow("USE #{database}")
+          raise "Cannot USE #{database}"
+        end
+      end
+
+      def native_database_types
+        {
+          :primary_key => "numeric(9,0) IDENTITY PRIMARY KEY",
+          :string      => { :name => "varchar", :limit => 255 },
+          :text        => { :name => "text" },
+          :integer     => { :name => "int" },
+          :float       => { :name => "float", :limit => 8 },
+          :datetime    => { :name => "datetime" },
+          :timestamp   => { :name => "timestamp" },
+          :time        => { :name => "time" },
+          :date        => { :name => "datetime" },
+          :binary      => { :name => "image"},
+          :boolean     => { :name => "bit" }
+        }
+      end
+
+      def adapter_name
+        'Sybase'
+      end
+
+      def active?
+        !(@connection.connection.nil? || @connection.connection_dead?)
+      end
+
+      def disconnect!
+        @connection.close rescue nil
+      end
+
+      def reconnect!
+        raise "Sybase Connection Adapter does not yet support reconnect!"
+        # disconnect!
+        # connect! # Not yet implemented
+      end
+
+      def table_alias_length
+        30
+      end
+
+      # Check for a limit statement and parse out the limit and
+      # offset if specified. Remove the limit from the sql statement
+      # and call select.
+      def select_all(sql, name = nil)
+        select(sql, name)
+      end
+
+      # Remove limit clause from statement. This will almost always
+      # contain LIMIT 1 from the caller. set the rowcount to 1 before
+      # calling select.
+      def select_one(sql, name = nil)
+        result = select(sql, name)
+        result.nil? ? nil : result.first
+      end
+
+      def columns(table_name, name = nil)
+        table_structure(table_name).inject([]) do |columns, column|
+          name, default, type, nullable, identity, primary = column
+          columns << ColumnWithIdentity.new(name, default, type, nullable, identity, primary)
+          columns
+        end
+      end
+
+      def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
+        begin
+          table_name = get_table_name(sql)
+          col = get_identity_column(table_name)
+          ii_enabled = false
+
+          if col != nil
+            if query_contains_identity_column(sql, col)
+              begin
+                execute enable_identity_insert(table_name, true)
+                ii_enabled = true
+              rescue Exception => e
+                raise ActiveRecordError, "IDENTITY_INSERT could not be turned ON"
+              end
+            end
+          end
+
+          log(sql, name) do
+            execute(sql, name)
+            ident = select_one("SELECT @@IDENTITY AS last_id")["last_id"]
+            id_value || ident
+          end
+        ensure
+          if ii_enabled
+            begin
+              execute enable_identity_insert(table_name, false)
+            rescue Exception => e
+              raise ActiveRecordError, "IDENTITY_INSERT could not be turned OFF"
+            end
+          end
+        end
+      end
+
+      def execute(sql, name = nil)
+        log(sql, name) do
+          @connection.context.reset
+          @connection.set_rowcount(@limit || 0)
+          @limit = @offset = nil
+          @connection.sql_norow(sql)
+          if @connection.cmd_fail? or @connection.context.failed?
+            raise "SQL Command Failed for #{name}: #{sql}\nMessage: #{@connection.context.message}"
+          end
+        end
+        # Return rows affected
+        @connection.results[0].row_count
+      end
+
+      alias_method :update, :execute
+      alias_method :delete, :execute
+
+      def begin_db_transaction()    execute "BEGIN TRAN" end
+      def commit_db_transaction()   execute "COMMIT TRAN" end
+      def rollback_db_transaction() execute "ROLLBACK TRAN" end
+
+      def tables(name = nil)
+        tables = []
+        select("select name from sysobjects where type='U'", name).each do |row|
+          tables << row['name']
+        end
+        tables
+      end
+
+      def indexes(table_name, name = nil)
+        indexes = []
+        select("exec sp_helpindex #{table_name}", name).each do |index|
+          unique = index["index_description"] =~ /unique/
+          primary = index["index_description"] =~ /^clustered/
+          if !primary
+            cols = index["index_keys"].split(", ").each { |col| col.strip! }
+            indexes << IndexDefinition.new(table_name, index["index_name"], unique, cols)
+          end
+        end
+        indexes
+      end
+
+      def quoted_true
+        "1"
+      end
+
+      def quoted_false
+        "0"
+      end
+
+      def quote(value, column = nil)
+        case value
+          when String                
+            if column && column.type == :binary && column.class.respond_to?(:string_to_binary)
+              "#{quote_string(column.class.string_to_binary(value))}"
+            elsif value =~ /^[+-]?[0-9]+$/o
+              value
+            else
+              "'#{quote_string(value)}'"
+            end
+          when NilClass              then (column && column.type == :boolean) ? '0' : "NULL"
+          when TrueClass             then '1'
+          when FalseClass            then '0'
+          when Float, Fixnum, Bignum then value.to_s
+          when Date                  then "'#{value.to_s}'" 
+          when Time, DateTime        then "'#{value.strftime("%Y-%m-%d %H:%M:%S")}'"
+          else                            "'#{quote_string(value.to_yaml)}'"
+        end
+      end
+
+      def quote_column(type, value)
+        case type
+          when :boolean
+            case value
+              when String then value =~ /^[ty]/o ? 1 : 0
+              when true   then 1
+              when false  then 0
+              else             value.to_i
+            end
+          when :integer then value.to_i
+          when :float   then value.to_f
+          when :text, :string, :enum
+            case value
+              when String, Symbol, Fixnum, Float, Bignum, TrueClass, FalseClass 
+                "'#{quote_string(value.to_s)}'"
+              else
+                "'#{quote_string(value.to_yaml)}'"
+            end
+          when :date, :datetime, :time
+            case value
+              when Time, DateTime then "'#{value.strftime("%Y-%m-%d %H:%M:%S")}'"
+              when Date           then "'#{value.to_s}'"
+              else                     "'#{quote_string(value)}'"
+            end
+          else "'#{quote_string(value.to_yaml)}'"
+        end
+      end
+
+      def quote_string(s)
+        s.gsub(/'/, "''") # ' (for ruby-mode)
+      end
+
+      def quote_column_name(name)
+        "[#{name}]"
+      end
+
+      def add_limit_offset!(sql, options) # :nodoc:
+        @limit = options[:limit]
+        @offset = options[:offset]
+        if !normal_select?
+          # Use temp table to hack offset with Sybase
+          sql.sub!(/ FROM /i, ' INTO #artemp FROM ')
+        elsif zero_limit?
+          # "SET ROWCOUNT 0" turns off limits, so we have
+          # to use a cheap trick.
+          if sql =~ /WHERE/i
+            sql.sub!(/WHERE/i, 'WHERE 1 = 2 AND ')
+          elsif sql =~ /ORDER\s+BY/i
+            sql.sub!(/ORDER\s+BY/i, 'WHERE 1 = 2 ORDER BY')
+          else
+            sql << 'WHERE 1 = 2'
+          end
+        end
+      end
+
+      def supports_migrations? #:nodoc:
+        true
+      end
+
+      def rename_table(name, new_name)
+        execute "EXEC sp_rename '#{name}', '#{new_name}'"
+      end
+
+      def rename_column(table, column, new_column_name)
+        execute "EXEC sp_rename '#{table}.#{column}', '#{new_column_name}'"
+      end
+
+      def change_column(table_name, column_name, type, options = {}) #:nodoc:
+        sql_commands = ["ALTER TABLE #{table_name} MODIFY #{column_name} #{type_to_sql(type, options[:limit])}"]
+        if options[:default]
+          remove_default_constraint(table_name, column_name)
+          sql_commands << "ALTER TABLE #{table_name} ADD CONSTRAINT DF_#{table_name}_#{column_name} DEFAULT #{options[:default]} FOR #{column_name}"
+        end
+        sql_commands.each { |c| execute(c) }
+      end
+
+      def remove_column(table_name, column_name)
+        remove_default_constraint(table_name, column_name)
+        execute "ALTER TABLE #{table_name} DROP #{column_name}"
+      end
+
+      def remove_default_constraint(table_name, column_name)
+        defaults = select "select def.name from sysobjects def, syscolumns col, sysobjects tab where col.cdefault = def.id and col.name = '#{column_name}' and tab.name = '#{table_name}' and col.id = tab.id"
+        defaults.each {|constraint|
+          execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{constraint["name"]}"
+        }
+      end
+
+      def remove_index(table_name, options = {})
+        execute "DROP INDEX #{table_name}.#{index_name(table_name, options)}"
+      end
+
+      def add_column_options!(sql, options) #:nodoc:
+        sql << " DEFAULT #{quote(options[:default], options[:column])}" unless options[:default].nil?
+
+        if check_null_for_column?(options[:column], sql)
+          sql << (options[:null] == false ? " NOT NULL" : " NULL")
+        end
+        sql
+      end
+
+    private
+      def check_null_for_column?(col, sql)
+        # Sybase columns are NOT NULL by default, so explicitly set NULL
+        # if :null option is omitted.  Disallow NULLs for boolean.
+        type = col.nil? ? "" : col[:type]
+
+        # Ignore :null if a primary key
+        return false if type =~ /PRIMARY KEY/i
+
+        # Ignore :null if a :boolean or BIT column
+        if (sql =~ /\s+bit(\s+DEFAULT)?/i) || type == :boolean
+          # If no default clause found on a boolean column, add one.
+          sql << " DEFAULT 0" if $1.nil?
+          return false
+        end
+        true
+      end
+
+      # Return the last value of the identity global value.
+      def last_insert_id
+        @connection.sql("SELECT @@IDENTITY")
+        unless @connection.cmd_fail?
+          id = @connection.top_row_result.rows.first.first
+          if id
+            id = id.to_i
+            id = nil if id == 0
+          end
+        else
+          id = nil
+        end
+        id
+      end
+
+      def affected_rows(name = nil)
+        @connection.sql("SELECT @@ROWCOUNT")
+        unless @connection.cmd_fail?
+          count = @connection.top_row_result.rows.first.first
+          count = count.to_i if count
+        else
+          0
+        end
+      end
+
+      def normal_select?
+        # If limit is not set at all, we can ignore offset;
+        # If limit *is* set but offset is zero, use normal select
+        # with simple SET ROWCOUNT.  Thus, only use the temp table
+        # if limit is set and offset > 0.
+        has_limit = !@limit.nil?
+        has_offset = !@offset.nil? && @offset > 0
+        !has_limit || !has_offset
+      end
+
+      def zero_limit?
+        !@limit.nil? && @limit == 0
+      end
+
+      # Select limit number of rows starting at optional offset.
+      def select(sql, name = nil)
+        @connection.context.reset
+        log(sql, name) do
+          if normal_select?
+            # If limit is not explicitly set, return all results.
+            @logger.debug "Setting row count to (#{@limit || 'off'})" if @logger
+
+            # Run a normal select
+            @connection.set_rowcount(@limit || 0)
+            @connection.sql(sql)
+          else
+            # Select into a temp table and prune results
+            @logger.debug "Selecting #{@limit + (@offset || 0)} or fewer rows into #artemp" if @logger
+            @connection.set_rowcount(@limit + (@offset || 0))
+            @connection.sql_norow(sql)  # Select into temp table
+            @logger.debug "Deleting #{@offset || 0} or fewer rows from #artemp" if @logger
+            @connection.set_rowcount(@offset || 0)
+            @connection.sql_norow("delete from #artemp") # Delete leading rows
+            @connection.set_rowcount(0)
+            @connection.sql("select * from #artemp") # Return the rest
+          end
+        end
+
+        rows = []
+        if @connection.context.failed? or @connection.cmd_fail?
+          raise StatementInvalid, "SQL Command Failed for #{name}: #{sql}\nMessage: #{@connection.context.message}"
+        else
+          results = @connection.top_row_result
+          if results && results.rows.length > 0
+            fields = fixup_column_names(results.columns)
+            results.rows.each do |row|
+              hashed_row = {}
+              row.zip(fields) { |cell, column| hashed_row[column] = cell }
+              rows << hashed_row
+            end
+          end
+        end
+        @connection.sql_norow("drop table #artemp") if !normal_select?
+        @limit = @offset = nil
+        return rows
+      end
+
+      def enable_identity_insert(table_name, enable = true)
+        if has_identity_column(table_name)
+          "SET IDENTITY_INSERT #{table_name} #{enable ? 'ON' : 'OFF'}"
+        end
+      end
+
+      def get_table_name(sql)
+        if sql =~ /^\s*insert\s+into\s+([^\(\s]+)\s*|^\s*update\s+([^\(\s]+)\s*/i
+          $1
+        elsif sql =~ /from\s+([^\(\s]+)\s*/i
+          $1
+        else
+          nil
+        end
+      end
+
+      def has_identity_column(table_name)
+        !get_identity_column(table_name).nil?
+      end
+
+      def get_identity_column(table_name)
+        @table_columns = {} unless @table_columns
+        @table_columns[table_name] = columns(table_name) if @table_columns[table_name] == nil
+        @table_columns[table_name].each do |col|
+          return col.name if col.identity
+        end
+
+        return nil
+      end
+
+      def query_contains_identity_column(sql, col)
+        sql =~ /\[#{col}\]/
+      end
+
+      # Remove trailing _ from names.
+      def fixup_column_names(columns)
+        columns.map { |column| column.sub(/_$/, '') }
+      end
+
+      def table_structure(table_name)
+        sql = <<SQLTEXT
+SELECT col.name AS name, type.name AS type, col.prec, col.scale, col.length,
+  col.status, obj.sysstat2, def.text
+ FROM sysobjects obj, syscolumns col, systypes type, syscomments def
+ WHERE obj.id = col.id AND col.usertype = type.usertype AND col.cdefault *= def.id
+  AND obj.type = 'U' AND obj.name = '#{table_name}' ORDER BY col.colid
+SQLTEXT
+        log(sql, "Get Column Info ") do
+          @connection.set_rowcount(0)
+          @connection.sql(sql)
+        end
+        if @connection.context.failed?
+          raise "SQL Command for table_structure for #{table_name} failed\nMessage: #{@connection.context.message}"
+        elsif !@connection.cmd_fail?
+          columns = []
+          results = @connection.top_row_result
+          results.rows.each do |row|
+            name, type, prec, scale, length, status, sysstat2, default = row
+            type = normalize_type(type, prec, scale, length)
+            default_value = nil
+            name.sub!(/_$/o, '')
+            if default =~ /DEFAULT\s+(.+)/o
+              default_value = $1.strip
+              default_value = default_value[1...-1] if default_value =~ /^['"]/o
+            end
+            nullable = (status & 8) == 8
+            identity = status >= 128
+            primary = (sysstat2 & 8) == 8
+
+            columns << [name, default_value, type, nullable, identity, primary]
+          end
+          columns
+        else
+          nil
+        end
+      end
+
+      def normalize_type(field_type, prec, scale, length)
+        if field_type =~ /numeric/i and (scale.nil? or scale == 0)
+          type = 'int'
+        elsif field_type =~ /money/i
+          type = 'numeric'
+        else
+          type = field_type
+        end
+        size = ''
+        if prec
+          size = "(#{prec})"
+        elsif length
+          size = "(#{length})"
+        end
+        return type + size
+      end
+
+      def default_value(value)
+      end
+    end # class SybaseAdapter
+
+    class SybaseAdapterContext < SybSQLContext
+      DEADLOCK = 1205
+      attr_reader :message
+
+      def init(logger = nil)
+        @deadlocked = false
+        @failed = false
+        @logger = logger
+        @message = nil
+      end
+
+      def srvmsgCB(con, msg)
+        # Do not log change of context messages.
+        if msg['severity'] == 10 or msg['severity'] == 0
+          return true
+        end
+
+        if msg['msgnumber'] == DEADLOCK
+          @deadlocked = true
+        else
+          @logger.info "SQL Command failed!" if @logger
+          @failed = true
+        end
+
+        if @logger
+          @logger.error "** SybSQLContext Server Message: **"
+          @logger.error "  Message number #{msg['msgnumber']} Severity #{msg['severity']} State #{msg['state']} Line #{msg['line']}"
+          @logger.error "  Server #{msg['srvname']}"
+          @logger.error "  Procedure #{msg['proc']}"
+          @logger.error "  Message String:  #{msg['text']}"
+        end
+
+        @message = msg['text']
+
+        true
+      end
+
+      def deadlocked?
+        @deadlocked
+      end
+
+      def failed?
+        @failed
+      end
+
+      def reset
+        @deadlocked = false
+        @failed = false
+        @message = nil
+      end
+
+      def cltmsgCB(con, msg)
+        return true unless ( msg.kind_of?(Hash) )
+        unless ( msg[ "severity" ] ) then
+          return true
+        end
+
+        if @logger
+          @logger.error "** SybSQLContext Client-Message: **"
+          @logger.error "  Message number: LAYER=#{msg[ 'layer' ]} ORIGIN=#{msg[ 'origin' ]} SEVERITY=#{msg[ 'severity' ]} NUMBER=#{msg[ 'number' ]}"
+          @logger.error "  Message String: #{msg['msgstring']}"
+          @logger.error "  OS Error: #{msg['osstring']}"
+
+          @message = msg['msgstring']
+        end
+
+        @failed = true
+
+        # Not retry , CS_CV_RETRY_FAIL( probability TimeOut ) 
+        if( msg[ 'severity' ] == "RETRY_FAIL" ) then
+          @timeout_p = true
+          return false
+        end
+
+        return true
+      end
+    end # class SybaseAdapterContext
+
+  end # module ConnectionAdapters
+end # module ActiveRecord
+
+
+# Allow identity inserts for fixtures.
+require "active_record/fixtures"
+class Fixtures
+  alias :original_insert_fixtures :insert_fixtures
+
+  def insert_fixtures
+    values.each do |fixture|
+      allow_identity_inserts table_name, true
+      @connection.execute "INSERT INTO #{@table_name} (#{fixture.key_list}) VALUES (#{fixture.value_list})", 'Fixture Insert'
+      allow_identity_inserts table_name, false
+    end
+  end
+
+  def allow_identity_inserts(table_name, enable)
+      @connection.execute "SET IDENTITY_INSERT #{table_name} #{enable ? 'ON' : 'OFF'}" rescue nil
+  end
+end
+
+rescue LoadError => cannot_require_sybase
+  # Couldn't load sybase adapter
+end

vendor/rails/activerecord/lib/active_record/deprecated_associations.rb

@@ -0,0 +1,90 @@
+module ActiveRecord
+  module Associations # :nodoc:
+    module ClassMethods
+      def deprecated_collection_count_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def #{collection_name}_count(force_reload = false)
+            #{collection_name}.reload if force_reload
+            #{collection_name}.size
+          end
+        end_eval
+      end
+      
+      def deprecated_add_association_relation(association_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def add_#{association_name}(*items)
+            #{association_name}.concat(items)
+          end
+        end_eval
+      end
+    
+      def deprecated_remove_association_relation(association_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def remove_#{association_name}(*items)
+            #{association_name}.delete(items)
+          end
+        end_eval
+      end
+    
+      def deprecated_has_collection_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def has_#{collection_name}?(force_reload = false)
+            !#{collection_name}(force_reload).empty?
+          end
+        end_eval
+      end
+      
+      def deprecated_find_in_collection_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def find_in_#{collection_name}(association_id)
+            #{collection_name}.find(association_id)
+          end
+        end_eval
+      end
+      
+      def deprecated_find_all_in_collection_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def find_all_in_#{collection_name}(runtime_conditions = nil, orderings = nil, limit = nil, joins = nil)
+            #{collection_name}.find_all(runtime_conditions, orderings, limit, joins)
+          end
+        end_eval
+      end
+    
+      def deprecated_collection_create_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def create_in_#{collection_name}(attributes = {})
+            #{collection_name}.create(attributes)
+          end
+        end_eval
+      end
+    
+      def deprecated_collection_build_method(collection_name)# :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def build_to_#{collection_name}(attributes = {})
+            #{collection_name}.build(attributes)
+          end
+        end_eval
+      end
+
+      def deprecated_association_comparison_method(association_name, association_class_name) # :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def #{association_name}?(comparison_object, force_reload = false)
+            if comparison_object.kind_of?(#{association_class_name})
+              #{association_name}(force_reload) == comparison_object
+            else
+              raise "Comparison object is a #{association_class_name}, should have been \#{comparison_object.class.name}"
+            end
+          end
+        end_eval
+      end
+        
+      def deprecated_has_association_method(association_name) # :nodoc:
+        module_eval <<-"end_eval", __FILE__, __LINE__
+          def has_#{association_name}?(force_reload = false)
+            !#{association_name}(force_reload).nil?
+          end
+        end_eval
+      end      
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/deprecated_finders.rb

@@ -0,0 +1,41 @@
+module ActiveRecord
+  class Base
+    class << self
+      # This method is deprecated in favor of find with the :conditions option.
+      #
+      # Works like find, but the record matching +id+ must also meet the +conditions+.
+      # +RecordNotFound+ is raised if no record can be found matching the +id+ or meeting the condition.
+      # Example:
+      #   Person.find_on_conditions 5, "first_name LIKE '%dav%' AND last_name = 'heinemeier'"
+      def find_on_conditions(ids, conditions) # :nodoc:
+        find(ids, :conditions => conditions)
+      end
+
+      # This method is deprecated in favor of find(:first, options).
+      #
+      # Returns the object for the first record responding to the conditions in +conditions+, 
+      # such as "group = 'master'". If more than one record is returned from the query, it's the first that'll
+      # be used to create the object. In such cases, it might be beneficial to also specify 
+      # +orderings+, like "income DESC, name", to control exactly which record is to be used. Example: 
+      #   Employee.find_first "income > 50000", "income DESC, name"
+      def find_first(conditions = nil, orderings = nil, joins = nil) # :nodoc:
+        find(:first, :conditions => conditions, :order => orderings, :joins => joins)
+      end
+
+      # This method is deprecated in favor of find(:all, options).
+      #
+      # Returns an array of all the objects that could be instantiated from the associated
+      # table in the database. The +conditions+ can be used to narrow the selection of objects (WHERE-part),
+      # such as by "color = 'red'", and arrangement of the selection can be done through +orderings+ (ORDER BY-part),
+      # such as by "last_name, first_name DESC". A maximum of returned objects and their offset can be specified in 
+      # +limit+ with either just a single integer as the limit or as an array with the first element as the limit, 
+      # the second as the offset. Examples:
+      #   Project.find_all "category = 'accounts'", "last_accessed DESC", 15
+      #   Project.find_all ["category = ?", category_name], "created ASC", [15, 20]
+      def find_all(conditions = nil, orderings = nil, limit = nil, joins = nil) # :nodoc:
+        limit, offset = limit.is_a?(Array) ? limit : [ limit, nil ]
+        find(:all, :conditions => conditions, :order => orderings, :joins => joins, :limit => limit, :offset => offset)
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/fixtures.rb

@@ -0,0 +1,600 @@
+require 'erb'
+require 'yaml'
+require 'csv'
+
+module YAML #:nodoc:
+  class Omap #:nodoc:
+    def keys;   map { |k, v| k } end
+    def values; map { |k, v| v } end
+  end
+end
+
+class FixtureClassNotFound < ActiveRecord::ActiveRecordError #:nodoc:
+end
+
+# Fixtures are a way of organizing data that you want to test against; in short, sample data. They come in 3 flavours:
+#
+#   1.  YAML fixtures
+#   2.  CSV fixtures
+#   3.  Single-file fixtures
+#
+# = YAML fixtures
+#
+# This type of fixture is in YAML format and the preferred default. YAML is a file format which describes data structures
+# in a non-verbose, humanly-readable format. It ships with Ruby 1.8.1+.
+#
+# Unlike single-file fixtures, YAML fixtures are stored in a single file per model, which are placed in the directory appointed
+# by <tt>Test::Unit::TestCase.fixture_path=(path)</tt> (this is automatically configured for Rails, so you can just
+# put your files in <your-rails-app>/test/fixtures/). The fixture file ends with the .yml file extension (Rails example:
+# "<your-rails-app>/test/fixtures/web_sites.yml"). The format of a YAML fixture file looks like this:
+#
+#   rubyonrails:
+#     id: 1
+#     name: Ruby on Rails
+#     url: http://www.rubyonrails.org
+#
+#   google:
+#     id: 2
+#     name: Google
+#     url: http://www.google.com
+#
+# This YAML fixture file includes two fixtures.  Each YAML fixture (ie. record) is given a name and is followed by an
+# indented list of key/value pairs in the "key: value" format.  Records are separated by a blank line for your viewing
+# pleasure.
+#
+# Note that YAML fixtures are unordered. If you want ordered fixtures, use the omap YAML type.  See http://yaml.org/type/omap.html
+# for the specification.  You will need ordered fixtures when you have foreign key constraints on keys in the same table.
+# This is commonly needed for tree structures.  Example:
+#
+#    --- !omap
+#    - parent:
+#        id:         1
+#        parent_id:  NULL
+#        title:      Parent
+#    - child:
+#        id:         2
+#        parent_id:  1
+#        title:      Child
+#
+# = CSV fixtures
+#
+# Fixtures can also be kept in the Comma Separated Value format. Akin to YAML fixtures, CSV fixtures are stored
+# in a single file, but instead end with the .csv file extension (Rails example: "<your-rails-app>/test/fixtures/web_sites.csv")
+#
+# The format of this type of fixture file is much more compact than the others, but also a little harder to read by us
+# humans.  The first line of the CSV file is a comma-separated list of field names.  The rest of the file is then comprised
+# of the actual data (1 per line).  Here's an example:
+#
+#   id, name, url
+#   1, Ruby On Rails, http://www.rubyonrails.org
+#   2, Google, http://www.google.com
+#
+# Should you have a piece of data with a comma character in it, you can place double quotes around that value.  If you
+# need to use a double quote character, you must escape it with another double quote.
+#
+# Another unique attribute of the CSV fixture is that it has *no* fixture name like the other two formats.  Instead, the
+# fixture names are automatically generated by deriving the class name of the fixture file and adding an incrementing
+# number to the end.  In our example, the 1st fixture would be called "web_site_1" and the 2nd one would be called
+# "web_site_2".
+#
+# Most databases and spreadsheets support exporting to CSV format, so this is a great format for you to choose if you
+# have existing data somewhere already.
+#
+# = Single-file fixtures
+#
+# This type of fixtures was the original format for Active Record that has since been deprecated in favor of the YAML and CSV formats.
+# Fixtures for this format are created by placing text files in a sub-directory (with the name of the model) to the directory
+# appointed by <tt>Test::Unit::TestCase.fixture_path=(path)</tt> (this is automatically configured for Rails, so you can just
+# put your files in <your-rails-app>/test/fixtures/<your-model-name>/ -- like <your-rails-app>/test/fixtures/web_sites/ for the WebSite
+# model).
+#
+# Each text file placed in this directory represents a "record".  Usually these types of fixtures are named without
+# extensions, but if you are on a Windows machine, you might consider adding .txt as the extension.  Here's what the
+# above example might look like:
+#
+#   web_sites/google
+#   web_sites/yahoo.txt
+#   web_sites/ruby-on-rails
+#
+# The file format of a standard fixture is simple.  Each line is a property (or column in db speak) and has the syntax
+# of "name => value".  Here's an example of the ruby-on-rails fixture above:
+#
+#   id => 1
+#   name => Ruby on Rails
+#   url => http://www.rubyonrails.org
+#
+# = Using Fixtures
+#
+# Since fixtures are a testing construct, we use them in our unit and functional tests.  There are two ways to use the
+# fixtures, but first let's take a look at a sample unit test found:
+#
+#   require 'web_site'
+#
+#   class WebSiteTest < Test::Unit::TestCase
+#     def test_web_site_count
+#       assert_equal 2, WebSite.count
+#     end
+#   end
+#
+# As it stands, unless we pre-load the web_site table in our database with two records, this test will fail.  Here's the
+# easiest way to add fixtures to the database:
+#
+#   ...
+#   class WebSiteTest < Test::Unit::TestCase
+#     fixtures :web_sites # add more by separating the symbols with commas
+#   ...
+#
+# By adding a "fixtures" method to the test case and passing it a list of symbols (only one is shown here tho), we trigger
+# the testing environment to automatically load the appropriate fixtures into the database before each test.  
+# To ensure consistent data, the environment deletes the fixtures before running the load.
+#
+# In addition to being available in the database, the fixtures are also loaded into a hash stored in an instance variable
+# of the test case.  It is named after the symbol... so, in our example, there would be a hash available called
+# @web_sites.  This is where the "fixture name" comes into play.
+#
+# On top of that, each record is automatically "found" (using Model.find(id)) and placed in the instance variable of its name.
+# So for the YAML fixtures, we'd get @rubyonrails and @google, which could be interrogated using regular Active Record semantics:
+#
+#   # test if the object created from the fixture data has the same attributes as the data itself
+#   def test_find
+#     assert_equal @web_sites["rubyonrails"]["name"], @rubyonrails.name
+#   end
+#
+# As seen above, the data hash created from the YAML fixtures would have @web_sites["rubyonrails"]["url"] return
+# "http://www.rubyonrails.org" and @web_sites["google"]["name"] would return "Google". The same fixtures, but loaded
+# from a CSV fixture file, would be accessible via @web_sites["web_site_1"]["name"] == "Ruby on Rails" and have the individual
+# fixtures available as instance variables @web_site_1 and @web_site_2.
+#
+# If you do not wish to use instantiated fixtures (usually for performance reasons) there are two options.
+#
+#   - to completely disable instantiated fixtures:
+#       self.use_instantiated_fixtures = false
+#
+#   - to keep the fixture instance (@web_sites) available, but do not automatically 'find' each instance:
+#       self.use_instantiated_fixtures = :no_instances 
+#
+# Even if auto-instantiated fixtures are disabled, you can still access them
+# by name via special dynamic methods. Each method has the same name as the
+# model, and accepts the name of the fixture to instantiate:
+#
+#   fixtures :web_sites
+#
+#   def test_find
+#     assert_equal "Ruby on Rails", web_sites(:rubyonrails).name
+#   end
+#
+# = Dynamic fixtures with ERb
+#
+# Some times you don't care about the content of the fixtures as much as you care about the volume. In these cases, you can
+# mix ERb in with your YAML or CSV fixtures to create a bunch of fixtures for load testing, like:
+#
+# <% for i in 1..1000 %>
+# fix_<%= i %>:
+#   id: <%= i %>
+#   name: guy_<%= 1 %>
+# <% end %>
+#
+# This will create 1000 very simple YAML fixtures.
+#
+# Using ERb, you can also inject dynamic values into your fixtures with inserts like <%= Date.today.strftime("%Y-%m-%d") %>.
+# This is however a feature to be used with some caution. The point of fixtures are that they're stable units of predictable
+# sample data. If you feel that you need to inject dynamic values, then perhaps you should reexamine whether your application
+# is properly testable. Hence, dynamic values in fixtures are to be considered a code smell.
+#
+# = Transactional fixtures
+#
+# TestCases can use begin+rollback to isolate their changes to the database instead of having to delete+insert for every test case. 
+# They can also turn off auto-instantiation of fixture data since the feature is costly and often unused.
+#
+#   class FooTest < Test::Unit::TestCase
+#     self.use_transactional_fixtures = true
+#     self.use_instantiated_fixtures = false
+#   
+#     fixtures :foos
+#   
+#     def test_godzilla
+#       assert !Foo.find(:all).empty?
+#       Foo.destroy_all
+#       assert Foo.find(:all).empty?
+#     end
+#   
+#     def test_godzilla_aftermath
+#       assert !Foo.find(:all).empty?
+#     end
+#   end
+#   
+# If you preload your test database with all fixture data (probably in the Rakefile task) and use transactional fixtures, 
+# then you may omit all fixtures declarations in your test cases since all the data's already there and every case rolls back its changes.
+#
+# In order to use instantiated fixtures with preloaded data, set +self.pre_loaded_fixtures+ to true. This will provide 
+# access to fixture data for every table that has been loaded through fixtures (depending on the value of +use_instantiated_fixtures+)
+#
+# When *not* to use transactional fixtures: 
+#   1. You're testing whether a transaction works correctly. Nested transactions don't commit until all parent transactions commit, 
+#      particularly, the fixtures transaction which is begun in setup and rolled back in teardown. Thus, you won't be able to verify 
+#      the results of your transaction until Active Record supports nested transactions or savepoints (in progress.) 
+#   2. Your database does not support transactions. Every Active Record database supports transactions except MySQL MyISAM. 
+#      Use InnoDB, MaxDB, or NDB instead.
+class Fixtures < YAML::Omap
+  DEFAULT_FILTER_RE = /\.ya?ml$/
+
+  def self.instantiate_fixtures(object, table_name, fixtures, load_instances=true)
+    object.instance_variable_set "@#{table_name.to_s.gsub('.','_')}", fixtures
+    if load_instances
+      ActiveRecord::Base.silence do
+        fixtures.each do |name, fixture|
+          begin
+            object.instance_variable_set "@#{name}", fixture.find
+          rescue FixtureClassNotFound
+            nil
+          end
+        end
+      end
+    end
+  end
+
+  def self.instantiate_all_loaded_fixtures(object, load_instances=true)
+    all_loaded_fixtures.each do |table_name, fixtures|
+      Fixtures.instantiate_fixtures(object, table_name, fixtures, load_instances)
+    end
+  end
+  
+  cattr_accessor :all_loaded_fixtures
+  self.all_loaded_fixtures = {}
+
+  def self.create_fixtures(fixtures_directory, table_names, class_names = {})
+    table_names = [table_names].flatten.map { |n| n.to_s }
+    connection = block_given? ? yield : ActiveRecord::Base.connection
+    ActiveRecord::Base.silence do
+      fixtures_map = {}
+      fixtures = table_names.map do |table_name|
+        fixtures_map[table_name] = Fixtures.new(connection, File.split(table_name.to_s).last, class_names[table_name.to_sym], File.join(fixtures_directory, table_name.to_s))
+      end               
+      all_loaded_fixtures.merge! fixtures_map  
+
+      connection.transaction do
+        fixtures.reverse.each { |fixture| fixture.delete_existing_fixtures }
+        fixtures.each { |fixture| fixture.insert_fixtures }
+
+        # Cap primary key sequences to max(pk).
+        if connection.respond_to?(:reset_pk_sequence!)
+          table_names.each do |table_name|
+            connection.reset_pk_sequence!(table_name)
+          end
+        end
+      end
+
+      return fixtures.size > 1 ? fixtures : fixtures.first
+    end
+  end
+
+
+  attr_reader :table_name
+
+  def initialize(connection, table_name, class_name, fixture_path, file_filter = DEFAULT_FILTER_RE)
+    @connection, @table_name, @fixture_path, @file_filter = connection, table_name, fixture_path, file_filter
+    @class_name = class_name || 
+                  (ActiveRecord::Base.pluralize_table_names ? @table_name.singularize.camelize : @table_name.camelize)
+    @table_name = ActiveRecord::Base.table_name_prefix + @table_name + ActiveRecord::Base.table_name_suffix
+    read_fixture_files
+  end
+
+  def delete_existing_fixtures
+    @connection.delete "DELETE FROM #{@table_name}", 'Fixture Delete'
+  end
+
+  def insert_fixtures
+    values.each do |fixture|
+      @connection.execute "INSERT INTO #{@table_name} (#{fixture.key_list}) VALUES (#{fixture.value_list})", 'Fixture Insert'
+    end
+  end
+
+  private
+
+    def read_fixture_files
+      if File.file?(yaml_file_path)
+        # YAML fixtures
+        begin
+          yaml_string = ""
+          Dir["#{@fixture_path}/**/*.yml"].select {|f| test(?f,f) }.each do |subfixture_path|
+            yaml_string << IO.read(subfixture_path)
+          end
+          yaml_string << IO.read(yaml_file_path)
+
+          if yaml = YAML::load(erb_render(yaml_string))
+            yaml = yaml.value if yaml.respond_to?(:type_id) and yaml.respond_to?(:value)
+            yaml.each do |name, data|
+              self[name] = Fixture.new(data, @class_name)
+            end
+          end
+        rescue Exception=>boom
+          raise Fixture::FormatError, "a YAML error occured parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n  #{boom.class}: #{boom}"
+        end
+      elsif File.file?(csv_file_path)
+        # CSV fixtures
+        reader = CSV::Reader.create(erb_render(IO.read(csv_file_path)))
+        header = reader.shift
+        i = 0
+        reader.each do |row|
+          data = {}
+          row.each_with_index { |cell, j| data[header[j].to_s.strip] = cell.to_s.strip }
+          self["#{Inflector::underscore(@class_name)}_#{i+=1}"]= Fixture.new(data, @class_name)
+        end
+      elsif File.file?(deprecated_yaml_file_path)
+        raise Fixture::FormatError, ".yml extension required: rename #{deprecated_yaml_file_path} to #{yaml_file_path}"
+      else
+        # Standard fixtures
+        Dir.entries(@fixture_path).each do |file|
+          path = File.join(@fixture_path, file)
+          if File.file?(path) and file !~ @file_filter
+            self[file] = Fixture.new(path, @class_name)
+          end
+        end
+      end
+    end
+
+    def yaml_file_path
+      "#{@fixture_path}.yml"
+    end
+
+    def deprecated_yaml_file_path
+      "#{@fixture_path}.yaml"
+    end
+
+    def csv_file_path
+      @fixture_path + ".csv"
+    end
+
+    def yaml_fixtures_key(path)
+      File.basename(@fixture_path).split(".").first
+    end
+
+    def erb_render(fixture_content)
+      ERB.new(fixture_content).result
+    end
+end
+
+class Fixture #:nodoc:
+  include Enumerable
+  class FixtureError < StandardError#:nodoc:
+  end
+  class FormatError < FixtureError#:nodoc:
+  end
+
+  def initialize(fixture, class_name)
+    case fixture
+      when Hash, YAML::Omap
+        @fixture = fixture
+      when String
+        @fixture = read_fixture_file(fixture)
+      else
+        raise ArgumentError, "Bad fixture argument #{fixture.inspect}"
+    end
+
+    @class_name = class_name
+  end
+
+  def each
+    @fixture.each { |item| yield item }
+  end
+
+  def [](key)
+    @fixture[key]
+  end
+
+  def to_hash
+    @fixture
+  end
+
+  def key_list
+    columns = @fixture.keys.collect{ |column_name| ActiveRecord::Base.connection.quote_column_name(column_name) }
+    columns.join(", ")
+  end
+
+  def value_list
+    @fixture.values.map { |v| ActiveRecord::Base.connection.quote(v).gsub('\\n', "\n").gsub('\\r', "\r") }.join(", ")
+  end
+
+  def find
+    klass = @class_name.is_a?(Class) ? @class_name : Object.const_get(@class_name) rescue nil
+    if klass
+      klass.find(self[klass.primary_key])
+    else
+      raise FixtureClassNotFound, "The class #{@class_name.inspect} was not found."
+    end
+  end
+
+  private
+    def read_fixture_file(fixture_file_path)
+      IO.readlines(fixture_file_path).inject({}) do |fixture, line|
+        # Mercifully skip empty lines.
+        next if line =~ /^\s*$/
+
+        # Use the same regular expression for attributes as Active Record.
+        unless md = /^\s*([a-zA-Z][-_\w]*)\s*=>\s*(.+)\s*$/.match(line)
+          raise FormatError, "#{fixture_file_path}: fixture format error at '#{line}'.  Expecting 'key => value'."
+        end
+        key, value = md.captures
+
+        # Disallow duplicate keys to catch typos.
+        raise FormatError, "#{fixture_file_path}: duplicate '#{key}' in fixture." if fixture[key]
+        fixture[key] = value.strip
+        fixture
+      end
+    end
+end
+
+module Test #:nodoc:
+  module Unit #:nodoc:
+    class TestCase #:nodoc:
+      cattr_accessor :fixture_path
+      class_inheritable_accessor :fixture_table_names
+      class_inheritable_accessor :fixture_class_names
+      class_inheritable_accessor :use_transactional_fixtures
+      class_inheritable_accessor :use_instantiated_fixtures   # true, false, or :no_instances
+      class_inheritable_accessor :pre_loaded_fixtures
+
+      self.fixture_table_names = []
+      self.use_transactional_fixtures = false
+      self.use_instantiated_fixtures = true
+      self.pre_loaded_fixtures = false
+      
+      self.fixture_class_names = {}
+      
+      @@already_loaded_fixtures = {}
+      self.fixture_class_names = {}
+      
+      def self.set_fixture_class(class_names = {})
+        self.fixture_class_names = self.fixture_class_names.merge(class_names)
+      end
+      
+      def self.fixtures(*table_names)
+        table_names = table_names.flatten.map { |n| n.to_s }
+        self.fixture_table_names |= table_names
+        require_fixture_classes(table_names)
+        setup_fixture_accessors(table_names)
+      end
+
+      def self.require_fixture_classes(table_names=nil)
+        (table_names || fixture_table_names).each do |table_name| 
+          file_name = table_name.to_s
+          file_name = file_name.singularize if ActiveRecord::Base.pluralize_table_names
+          begin
+            require file_name
+          rescue LoadError
+            # Let's hope the developer has included it himself
+          end
+        end
+      end
+
+      def self.setup_fixture_accessors(table_names=nil)
+        (table_names || fixture_table_names).each do |table_name|
+          table_name = table_name.to_s.tr('.','_')
+          define_method(table_name) do |fixture, *optionals|
+            force_reload = optionals.shift
+            @fixture_cache[table_name] ||= Hash.new
+            @fixture_cache[table_name][fixture] = nil if force_reload
+            if @loaded_fixtures[table_name][fixture.to_s]
+              @fixture_cache[table_name][fixture] ||= @loaded_fixtures[table_name][fixture.to_s].find
+            else
+              raise StandardError, "No fixture with name '#{fixture}' found for table '#{table_name}'"
+            end
+          end
+        end
+      end
+
+      def self.uses_transaction(*methods)
+        @uses_transaction ||= []
+        @uses_transaction.concat methods.map { |m| m.to_s }
+      end
+
+      def self.uses_transaction?(method)
+        @uses_transaction && @uses_transaction.include?(method.to_s)
+      end
+
+      def use_transactional_fixtures?
+        use_transactional_fixtures &&
+          !self.class.uses_transaction?(method_name)
+      end
+
+      def setup_with_fixtures
+        if pre_loaded_fixtures && !use_transactional_fixtures
+          raise RuntimeError, 'pre_loaded_fixtures requires use_transactional_fixtures' 
+        end
+
+        @fixture_cache = Hash.new
+
+        # Load fixtures once and begin transaction.
+        if use_transactional_fixtures?
+          if @@already_loaded_fixtures[self.class]
+            @loaded_fixtures = @@already_loaded_fixtures[self.class]
+          else
+            load_fixtures
+            @@already_loaded_fixtures[self.class] = @loaded_fixtures
+          end
+          ActiveRecord::Base.lock_mutex
+          ActiveRecord::Base.connection.begin_db_transaction
+
+        # Load fixtures for every test.
+        else
+          @@already_loaded_fixtures[self.class] = nil
+          load_fixtures
+        end
+
+        # Instantiate fixtures for every test if requested.
+        instantiate_fixtures if use_instantiated_fixtures
+      end
+
+      alias_method :setup, :setup_with_fixtures
+
+      def teardown_with_fixtures
+        # Rollback changes.
+        if use_transactional_fixtures?
+          ActiveRecord::Base.connection.rollback_db_transaction
+          ActiveRecord::Base.unlock_mutex
+        end
+        ActiveRecord::Base.verify_active_connections!
+      end
+
+      alias_method :teardown, :teardown_with_fixtures
+
+      def self.method_added(method)
+        case method.to_s
+        when 'setup'
+          unless method_defined?(:setup_without_fixtures)
+            alias_method :setup_without_fixtures, :setup
+            define_method(:setup) do
+              setup_with_fixtures
+              setup_without_fixtures
+            end
+          end
+        when 'teardown'
+          unless method_defined?(:teardown_without_fixtures)
+            alias_method :teardown_without_fixtures, :teardown
+            define_method(:teardown) do
+              teardown_without_fixtures
+              teardown_with_fixtures
+            end
+          end
+        end
+      end
+
+      private
+        def load_fixtures
+          @loaded_fixtures = {}
+          fixtures = Fixtures.create_fixtures(fixture_path, fixture_table_names, fixture_class_names)
+          unless fixtures.nil?
+            if fixtures.instance_of?(Fixtures)
+              @loaded_fixtures[fixtures.table_name] = fixtures
+            else
+              fixtures.each { |f| @loaded_fixtures[f.table_name] = f }
+            end
+          end
+        end
+
+        # for pre_loaded_fixtures, only require the classes once. huge speed improvement
+        @@required_fixture_classes = false
+
+        def instantiate_fixtures
+          if pre_loaded_fixtures
+            raise RuntimeError, 'Load fixtures before instantiating them.' if Fixtures.all_loaded_fixtures.empty?
+            unless @@required_fixture_classes
+              self.class.require_fixture_classes Fixtures.all_loaded_fixtures.keys
+              @@required_fixture_classes = true
+            end
+            Fixtures.instantiate_all_loaded_fixtures(self, load_instances?)
+          else
+            raise RuntimeError, 'Load fixtures before instantiating them.' if @loaded_fixtures.nil?
+            @loaded_fixtures.each do |table_name, fixtures|
+              Fixtures.instantiate_fixtures(self, table_name, fixtures, load_instances?)
+            end
+          end
+        end
+
+        def load_instances?
+          use_instantiated_fixtures != :no_instances
+        end
+    end
+
+  end
+end

vendor/rails/activerecord/lib/active_record/locking.rb

@@ -0,0 +1,79 @@
+module ActiveRecord
+  # Active Records support optimistic locking if the field <tt>lock_version</tt> is present.  Each update to the
+  # record increments the lock_version column and the locking facilities ensure that records instantiated twice
+  # will let the last one saved raise a StaleObjectError if the first was also updated. Example:
+  #
+  #   p1 = Person.find(1)
+  #   p2 = Person.find(1)
+  #   
+  #   p1.first_name = "Michael"
+  #   p1.save
+  #   
+  #   p2.first_name = "should fail"
+  #   p2.save # Raises a ActiveRecord::StaleObjectError
+  #
+  # You're then responsible for dealing with the conflict by rescuing the exception and either rolling back, merging,
+  # or otherwise apply the business logic needed to resolve the conflict.
+  #
+  # You must ensure that your database schema defaults the lock_version column to 0.
+  #
+  # This behavior can be turned off by setting <tt>ActiveRecord::Base.lock_optimistically = false</tt>.
+  # To override the name of the lock_version column, invoke the <tt>set_locking_column</tt> method.
+  # This method uses the same syntax as <tt>set_table_name</tt>
+  module Locking
+    def self.append_features(base) #:nodoc:
+      super
+      base.class_eval do
+        alias_method :update_without_lock, :update
+        alias_method :update, :update_with_lock
+      end
+    end
+
+    def update_with_lock #:nodoc:
+      return update_without_lock unless locking_enabled?
+
+      lock_col = self.class.locking_column
+      previous_value = send(lock_col)
+      send(lock_col + '=', previous_value + 1)
+
+      affected_rows = connection.update(<<-end_sql, "#{self.class.name} Update with optimistic locking")
+        UPDATE #{self.class.table_name}
+        SET #{quoted_comma_pair_list(connection, attributes_with_quotes(false))}
+        WHERE #{self.class.primary_key} = #{quote(id)} 
+        AND #{lock_col} = #{quote(previous_value)}
+      end_sql
+
+      unless affected_rows == 1
+        raise ActiveRecord::StaleObjectError, "Attempted to update a stale object"
+      end
+
+      return true
+    end
+  end
+
+  class Base
+    @@lock_optimistically = true
+    cattr_accessor :lock_optimistically
+
+    def locking_enabled? #:nodoc:
+      lock_optimistically && respond_to?(self.class.locking_column)
+    end
+    
+    class << self
+      def set_locking_column(value = nil, &block)
+        define_attr_method :locking_column, value, &block
+      end
+  
+      def locking_column #:nodoc:
+        reset_locking_column
+      end
+  
+      def reset_locking_column #:nodoc:
+        default = 'lock_version'
+        set_locking_column(default)
+        default
+      end
+    end
+    
+  end
+end

vendor/rails/activerecord/lib/active_record/migration.rb

@@ -0,0 +1,391 @@
+module ActiveRecord
+  class IrreversibleMigration < ActiveRecordError#:nodoc:
+  end
+  
+  class DuplicateMigrationVersionError < ActiveRecordError#:nodoc:
+    def initialize(version)
+      super("Multiple migrations have the version number #{version}")
+    end
+  end
+  
+  # Migrations can manage the evolution of a schema used by several physical databases. It's a solution
+  # to the common problem of adding a field to make a new feature work in your local database, but being unsure of how to
+  # push that change to other developers and to the production server. With migrations, you can describe the transformations
+  # in self-contained classes that can be checked into version control systems and executed against another database that
+  # might be one, two, or five versions behind.
+  #
+  # Example of a simple migration:
+  #
+  #   class AddSsl < ActiveRecord::Migration
+  #     def self.up
+  #       add_column :accounts, :ssl_enabled, :boolean, :default => 1
+  #     end
+  #
+  #     def self.down
+  #       remove_column :accounts, :ssl_enabled
+  #     end
+  #   end
+  #
+  # This migration will add a boolean flag to the accounts table and remove it again, if you're backing out of the migration.
+  # It shows how all migrations have two class methods +up+ and +down+ that describes the transformations required to implement
+  # or remove the migration. These methods can consist of both the migration specific methods, like add_column and remove_column,
+  # but may also contain regular Ruby code for generating data needed for the transformations.
+  #
+  # Example of a more complex migration that also needs to initialize data:
+  #
+  #   class AddSystemSettings < ActiveRecord::Migration
+  #     def self.up
+  #       create_table :system_settings do |t|
+  #         t.column :name,     :string
+  #         t.column :label,    :string
+  #         t.column :value,    :text
+  #         t.column :type,     :string
+  #         t.column :position, :integer
+  #       end
+  #
+  #       SystemSetting.create :name => "notice", :label => "Use notice?", :value => 1
+  #     end
+  #
+  #     def self.down
+  #       drop_table :system_settings
+  #     end
+  #   end
+  #
+  # This migration first adds the system_settings table, then creates the very first row in it using the Active Record model
+  # that relies on the table. It also uses the more advanced create_table syntax where you can specify a complete table schema
+  # in one block call.
+  #
+  # == Available transformations
+  #
+  # * <tt>create_table(name, options)</tt> Creates a table called +name+ and makes the table object available to a block
+  #   that can then add columns to it, following the same format as add_column. See example above. The options hash is for
+  #   fragments like "DEFAULT CHARSET=UTF-8" that are appended to the create table definition.
+  # * <tt>drop_table(name)</tt>: Drops the table called +name+.
+  # * <tt>rename_table(old_name, new_name)</tt>: Renames the table called +old_name+ to +new_name+.
+  # * <tt>add_column(table_name, column_name, type, options)</tt>: Adds a new column to the table called +table_name+
+  #   named +column_name+ specified to be one of the following types:
+  #   :string, :text, :integer, :float, :datetime, :timestamp, :time, :date, :binary, :boolean. A default value can be specified
+  #   by passing an +options+ hash like { :default => 11 }.
+  # * <tt>rename_column(table_name, column_name, new_column_name)</tt>: Renames a column but keeps the type and content.
+  # * <tt>change_column(table_name, column_name, type, options)</tt>:  Changes the column to a different type using the same
+  #   parameters as add_column.
+  # * <tt>remove_column(table_name, column_name)</tt>: Removes the column named +column_name+ from the table called +table_name+.
+  # * <tt>add_index(table_name, column_names, index_type, index_name)</tt>: Add a new index with the name of the column, or +index_name+ (if specified) on the column(s). Specify an optional +index_type+ (e.g. UNIQUE).
+  # * <tt>remove_index(table_name, index_name)</tt>: Remove the index specified by +index_name+.
+  #
+  # == Irreversible transformations
+  #
+  # Some transformations are destructive in a manner that cannot be reversed. Migrations of that kind should raise
+  # an <tt>IrreversibleMigration</tt> exception in their +down+ method.
+  #
+  # == Running migrations from within Rails
+  #
+  # The Rails package has several tools to help create and apply migrations.
+  #
+  # To generate a new migration, use <tt>script/generate migration MyNewMigration</tt>
+  # where MyNewMigration is the name of your migration. The generator will
+  # create a file <tt>nnn_my_new_migration.rb</tt> in the <tt>db/migrate/</tt>
+  # directory, where <tt>nnn</tt> is the next largest migration number.
+  # You may then edit the <tt>self.up</tt> and <tt>self.down</tt> methods of
+  # n MyNewMigration.
+  #
+  # To run migrations against the currently configured database, use
+  # <tt>rake migrate</tt>. This will update the database by running all of the
+  # pending migrations, creating the <tt>schema_info</tt> table if missing.
+  #
+  # To roll the database back to a previous migration version, use
+  # <tt>rake migrate VERSION=X</tt> where <tt>X</tt> is the version to which
+  # you wish to downgrade. If any of the migrations throw an
+  # <tt>IrreversibleMigration</tt> exception, that step will fail and you'll
+  # have some manual work to do.
+  #
+  # == Database support
+  #
+  # Migrations are currently supported in MySQL, PostgreSQL, SQLite,
+  # SQL Server, Sybase, and Oracle (all supported databases except DB2).
+  #
+  # == More examples
+  #
+  # Not all migrations change the schema. Some just fix the data:
+  #
+  #   class RemoveEmptyTags < ActiveRecord::Migration
+  #     def self.up
+  #       Tag.find(:all).each { |tag| tag.destroy if tag.pages.empty? }
+  #     end
+  #
+  #     def self.down
+  #       # not much we can do to restore deleted data
+  #       raise IrreversibleMigration
+  #     end
+  #   end
+  #
+  # Others remove columns when they migrate up instead of down:
+  #
+  #   class RemoveUnnecessaryItemAttributes < ActiveRecord::Migration
+  #     def self.up
+  #       remove_column :items, :incomplete_items_count
+  #       remove_column :items, :completed_items_count
+  #     end
+  #
+  #     def self.down
+  #       add_column :items, :incomplete_items_count
+  #       add_column :items, :completed_items_count
+  #     end
+  #   end
+  #
+  # And sometimes you need to do something in SQL not abstracted directly by migrations:
+  #
+  #   class MakeJoinUnique < ActiveRecord::Migration
+  #     def self.up
+  #       execute "ALTER TABLE `pages_linked_pages` ADD UNIQUE `page_id_linked_page_id` (`page_id`,`linked_page_id`)"
+  #     end
+  #
+  #     def self.down
+  #       execute "ALTER TABLE `pages_linked_pages` DROP INDEX `page_id_linked_page_id`"
+  #     end
+  #   end
+  #
+  # == Using a model after changing its table
+  #
+  # Sometimes you'll want to add a column in a migration and populate it immediately after. In that case, you'll need
+  # to make a call to Base#reset_column_information in order to ensure that the model has the latest column data from
+  # after the new column was added. Example:
+  #
+  #   class AddPeopleSalary < ActiveRecord::Migration
+  #     def self.up
+  #       add_column :people, :salary, :integer
+  #       Person.reset_column_information
+  #       Person.find(:all).each do |p|
+  #         p.salary = SalaryCalculator.compute(p)
+  #       end
+  #     end
+  #   end
+  #
+  # == Controlling verbosity
+  #
+  # By default, migrations will describe the actions they are taking, writing
+  # them to the console as they happen, along with benchmarks describing how
+  # long each step took.
+  #
+  # You can quiet them down by setting ActiveRecord::Migration.verbose = false.
+  #
+  # You can also insert your own messages and benchmarks by using the #say_with_time
+  # method:
+  #
+  #   def self.up
+  #     ...
+  #     say_with_time "Updating salaries..." do
+  #       Person.find(:all).each do |p|
+  #         p.salary = SalaryCalculator.compute(p)
+  #       end
+  #     end
+  #     ...
+  #   end
+  #
+  # The phrase "Updating salaries..." would then be printed, along with the
+  # benchmark for the block when the block completes.
+  class Migration
+    @@verbose = true
+    cattr_accessor :verbose
+
+    class << self
+      def up_using_benchmarks #:nodoc:
+        migrate(:up)
+      end
+
+      def down_using_benchmarks #:nodoc:
+        migrate(:down)
+      end
+
+      # Execute this migration in the named direction
+      def migrate(direction)
+        return unless respond_to?(direction)
+
+        case direction
+          when :up   then announce "migrating"
+          when :down then announce "reverting"
+        end
+        
+        result = nil
+        time = Benchmark.measure { result = send("real_#{direction}") }
+
+        case direction
+          when :up   then announce "migrated (%.4fs)" % time.real; write
+          when :down then announce "reverted (%.4fs)" % time.real; write
+        end
+        
+        result
+      end
+
+      # Because the method added may do an alias_method, it can be invoked
+      # recursively. We use @ignore_new_methods as a guard to indicate whether
+      # it is safe for the call to proceed.
+      def singleton_method_added(sym) #:nodoc:
+        return if @ignore_new_methods
+        
+        begin
+          @ignore_new_methods = true
+
+          case sym
+            when :up, :down
+              klass = (class << self; self; end)
+              klass.send(:alias_method, "real_#{sym}", sym)
+              klass.send(:alias_method, sym, "#{sym}_using_benchmarks")
+          end
+        ensure
+          @ignore_new_methods = false
+        end
+      end
+
+      def write(text="")
+        puts(text) if verbose
+      end
+
+      def announce(message)
+        text = "#{name}: #{message}"
+        length = [0, 75 - text.length].max
+        write "== %s %s" % [text, "=" * length]
+      end
+
+      def say(message, subitem=false)
+        write "#{subitem ? "   ->" : "--"} #{message}"
+      end
+
+      def say_with_time(message)
+        say(message)
+        result = nil
+        time = Benchmark.measure { result = yield }
+        say "%.4fs" % time.real, :subitem
+        result
+      end
+
+      def suppress_messages
+        save = verbose
+        self.verbose = false
+        yield
+      ensure
+        self.verbose = save
+      end
+
+      def method_missing(method, *arguments, &block)
+        say_with_time "#{method}(#{arguments.map { |a| a.inspect }.join(", ")})" do
+          arguments[0] = Migrator.proper_table_name(arguments.first) unless arguments.empty? || method == :execute
+          ActiveRecord::Base.connection.send(method, *arguments, &block)
+        end
+      end
+    end
+  end
+
+  class Migrator#:nodoc:
+    class << self
+      def migrate(migrations_path, target_version = nil)
+        Base.connection.initialize_schema_information
+
+        case
+          when target_version.nil?, current_version < target_version
+            up(migrations_path, target_version)
+          when current_version > target_version
+            down(migrations_path, target_version)
+          when current_version == target_version
+            return # You're on the right version
+        end
+      end
+      
+      def up(migrations_path, target_version = nil)
+        self.new(:up, migrations_path, target_version).migrate
+      end
+      
+      def down(migrations_path, target_version = nil)
+        self.new(:down, migrations_path, target_version).migrate
+      end
+      
+      def schema_info_table_name
+        Base.table_name_prefix + "schema_info" + Base.table_name_suffix
+      end
+
+      def current_version
+        (Base.connection.select_one("SELECT version FROM #{schema_info_table_name}") || {"version" => 0})["version"].to_i
+      end
+
+      def proper_table_name(name)
+        # Use the ActiveRecord objects own table_name, or pre/suffix from ActiveRecord::Base if name is a symbol/string
+        name.table_name rescue "#{ActiveRecord::Base.table_name_prefix}#{name}#{ActiveRecord::Base.table_name_suffix}"
+      end
+        
+    end
+    
+    def initialize(direction, migrations_path, target_version = nil)
+      raise StandardError.new("This database does not yet support migrations") unless Base.connection.supports_migrations?
+      @direction, @migrations_path, @target_version = direction, migrations_path, target_version
+      Base.connection.initialize_schema_information
+    end
+
+    def current_version
+      self.class.current_version
+    end
+
+    def migrate
+      migration_classes.each do |(version, migration_class)|
+        Base.logger.info("Reached target version: #{@target_version}") and break if reached_target_version?(version)
+        next if irrelevant_migration?(version)
+
+        Base.logger.info "Migrating to #{migration_class} (#{version})"
+        migration_class.migrate(@direction)
+        set_schema_version(version)
+      end
+    end
+
+    private
+      def migration_classes
+        migrations = migration_files.inject([]) do |migrations, migration_file|
+          load(migration_file)
+          version, name = migration_version_and_name(migration_file)
+          assert_unique_migration_version(migrations, version.to_i)
+          migrations << [ version.to_i, migration_class(name) ] 
+        end
+
+        down? ? migrations.sort.reverse : migrations.sort
+      end
+      
+      def assert_unique_migration_version(migrations, version)
+        if !migrations.empty? && migrations.transpose.first.include?(version)
+          raise DuplicateMigrationVersionError.new(version)
+        end
+      end
+      
+      def migration_files
+        files = Dir["#{@migrations_path}/[0-9]*_*.rb"].sort_by do |f|
+          migration_version_and_name(f).first.to_i
+        end
+        down? ? files.reverse : files
+      end
+                 
+      def migration_class(migration_name)
+        migration_name.camelize.constantize
+      end
+    
+      def migration_version_and_name(migration_file)
+        return *migration_file.scan(/([0-9]+)_([_a-z0-9]*).rb/).first
+      end
+      
+      def set_schema_version(version)
+        Base.connection.update("UPDATE #{self.class.schema_info_table_name} SET version = #{down? ? version.to_i - 1 : version.to_i}")
+      end
+      
+      def up?
+        @direction == :up
+      end
+      
+      def down?
+        @direction == :down
+      end
+      
+      def reached_target_version?(version)
+        (up? && version.to_i - 1 == @target_version) || (down? && version.to_i == @target_version)
+      end
+      
+      def irrelevant_migration?(version)
+        (up? && version.to_i <= current_version) || (down? && version.to_i > current_version)
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/observer.rb

@@ -0,0 +1,139 @@
+require 'singleton'
+
+module ActiveRecord
+  module Observing # :nodoc:
+    def self.append_features(base)
+      super
+      base.extend(ClassMethods)
+    end
+
+    module ClassMethods
+      # Activates the observers assigned. Examples:
+      #
+      #   # Calls PersonObserver.instance
+      #   ActiveRecord::Base.observers = :person_observer
+      #
+      #   # Calls Cacher.instance and GarbageCollector.instance 
+      #   ActiveRecord::Base.observers = :cacher, :garbage_collector
+      #
+      #   # Same as above, just using explicit class references
+      #   ActiveRecord::Base.observers = Cacher, GarbageCollector
+      def observers=(*observers)
+        observers = [ observers ].flatten.each do |observer| 
+          observer.is_a?(Symbol) ? 
+            observer.to_s.camelize.constantize.instance :
+            observer.instance
+        end
+      end
+    end
+  end
+
+  # Observer classes respond to lifecycle callbacks to implement trigger-like
+  # behavior outside the original class. This is a great way to reduce the
+  # clutter that normally comes when the model class is burdened with
+  # functionality that doesn't pertain to the core responsibility of the
+  # class. Example:
+  #
+  #   class CommentObserver < ActiveRecord::Observer
+  #     def after_save(comment)
+  #       Notifications.deliver_comment("admin@do.com", "New comment was posted", comment)
+  #     end
+  #   end
+  #
+  # This Observer sends an email when a Comment#save is finished.
+  #
+  #   class ContactObserver < ActiveRecord::Observer
+  #     def after_create(contact)
+  #       contact.logger.info('New contact added!')
+  #     end
+  #
+  #     def after_destroy(contact)
+  #       contact.logger.warn("Contact with an id of #{contact.id} was destroyed!")
+  #     end
+  #   end
+  #
+  # This Observer uses logger to log when specific callbacks are triggered.
+  #
+  # == Observing a class that can't be inferred
+  #
+  # Observers will by default be mapped to the class with which they share a name. So CommentObserver will
+  # be tied to observing Comment, ProductManagerObserver to ProductManager, and so on. If you want to name your observer
+  # differently than the class you're interested in observing, you can use the Observer.observe class method:
+  #
+  #   class AuditObserver < ActiveRecord::Observer
+  #     observe Account
+  #
+  #     def after_update(account)
+  #       AuditTrail.new(account, "UPDATED")
+  #     end
+  #   end
+  #
+  # If the audit observer needs to watch more than one kind of object, this can be specified with multiple arguments:
+  #
+  #   class AuditObserver < ActiveRecord::Observer
+  #     observe Account, Balance
+  #
+  #     def after_update(record)
+  #       AuditTrail.new(record, "UPDATED")
+  #     end
+  #   end
+  #
+  # The AuditObserver will now act on both updates to Account and Balance by treating them both as records.
+  #
+  # == Available callback methods
+  #
+  # The observer can implement callback methods for each of the methods described in the Callbacks module.
+  #
+  # == Storing Observers in Rails
+  # 
+  # If you're using Active Record within Rails, observer classes are usually stored in app/models with the
+  # naming convention of app/models/audit_observer.rb.
+  #
+  # == Configuration
+  # 
+  # In order to activate an observer, list it in the <tt>config.active_record.observers</tt> configuration setting in your
+  # <tt>config/environment.rb</tt> file.
+  #
+  #   config.active_record.observers = :comment_observer, :signup_observer
+  #
+  # Observers will not be invoked unless you define these in your application configuration.
+  #
+  class Observer
+    include Singleton
+
+    # Observer subclasses should be reloaded by the dispatcher in Rails
+    # when Dependencies.mechanism = :load.
+    include Reloadable::Subclasses
+    
+    # Attaches the observer to the supplied model classes.
+    def self.observe(*models)
+      define_method(:observed_class) { models }
+    end
+
+    def initialize
+      observed_classes = [ observed_class ].flatten
+      observed_subclasses_class = observed_classes.collect {|c| c.send(:subclasses) }.flatten!
+      (observed_classes + observed_subclasses_class).each do |klass| 
+        klass.add_observer(self)
+        klass.send(:define_method, :after_find) unless klass.respond_to?(:after_find)
+      end
+    end
+  
+    def update(callback_method, object) #:nodoc:
+      send(callback_method, object) if respond_to?(callback_method)
+    end
+    
+    private
+      def observed_class
+        if self.class.respond_to? "observed_class"
+          self.class.observed_class
+        else
+          Object.const_get(infer_observed_class_name)
+        end
+      end
+      
+      def infer_observed_class_name
+        self.class.name.scan(/(.*)Observer/)[0][0]
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/query_cache.rb

@@ -0,0 +1,64 @@
+module ActiveRecord
+  class QueryCache #:nodoc:
+    def initialize(connection)
+      @connection = connection
+      @query_cache = {}
+    end
+
+    def clear_query_cache
+      @query_cache = {}
+    end
+
+    def select_all(sql, name = nil)
+      (@query_cache[sql] ||= @connection.select_all(sql, name)).dup
+    end
+
+    def select_one(sql, name = nil)
+      @query_cache[sql] ||= @connection.select_one(sql, name)
+    end
+
+    def columns(table_name, name = nil)
+      @query_cache["SHOW FIELDS FROM #{table_name}"] ||= @connection.columns(table_name, name)
+    end
+
+    def insert(sql, name = nil, pk = nil, id_value = nil)
+      clear_query_cache
+      @connection.insert(sql, name, pk, id_value)
+    end
+
+    def update(sql, name = nil)
+      clear_query_cache
+      @connection.update(sql, name)
+    end
+
+    def delete(sql, name = nil)
+      clear_query_cache
+      @connection.delete(sql, name)
+    end
+    
+    private
+      def method_missing(method, *arguments, &proc)
+        @connection.send(method, *arguments, &proc)
+      end
+  end
+  
+  class Base
+    # Set the connection for the class with caching on
+    class << self
+      alias_method :connection_without_query_cache=, :connection=
+
+      def connection=(spec)
+        if spec.is_a?(ConnectionSpecification) and spec.config[:query_cache]
+          spec = QueryCache.new(self.send(spec.adapter_method, spec.config))
+        end
+        self.connection_without_query_cache = spec
+      end
+    end
+  end
+  
+  class AbstractAdapter #:nodoc:
+    # Stub method to be able to treat the connection the same whether the query cache has been turned on or not
+    def clear_query_cache
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/reflection.rb

@@ -0,0 +1,204 @@
+module ActiveRecord
+  module Reflection # :nodoc:
+    def self.included(base)
+      base.extend(ClassMethods)
+    end
+
+    # Reflection allows you to interrogate Active Record classes and objects about their associations and aggregations.
+    # This information can, for example, be used in a form builder that took an Active Record object and created input
+    # fields for all of the attributes depending on their type and displayed the associations to other objects.
+    #
+    # You can find the interface for the AggregateReflection and AssociationReflection classes in the abstract MacroReflection class.
+    module ClassMethods
+      def create_reflection(macro, name, options, active_record)
+        case macro
+          when :has_many, :belongs_to, :has_one, :has_and_belongs_to_many
+            reflection = AssociationReflection.new(macro, name, options, active_record)
+          when :composed_of
+            reflection = AggregateReflection.new(macro, name, options, active_record)
+        end
+        write_inheritable_hash :reflections, name => reflection
+        reflection
+      end
+      
+      def reflections
+        read_inheritable_attribute(:reflections) or write_inheritable_attribute(:reflections, {})
+      end
+      
+      # Returns an array of AggregateReflection objects for all the aggregations in the class.
+      def reflect_on_all_aggregations
+        reflections.values.select { |reflection| reflection.is_a?(AggregateReflection) }
+      end
+
+      # Returns the AggregateReflection object for the named +aggregation+ (use the symbol). Example:
+      #   Account.reflect_on_aggregation(:balance) # returns the balance AggregateReflection
+      def reflect_on_aggregation(aggregation)
+        reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil
+      end
+
+      # Returns an array of AssociationReflection objects for all the aggregations in the class. If you only want to reflect on a
+      # certain association type, pass in the symbol (:has_many, :has_one, :belongs_to) for that as the first parameter. Example:
+      # Account.reflect_on_all_associations             # returns an array of all associations
+      # Account.reflect_on_all_associations(:has_many)  # returns an array of all has_many associations
+      def reflect_on_all_associations(macro = nil)
+        association_reflections = reflections.values.select { |reflection| reflection.is_a?(AssociationReflection) }
+        macro ? association_reflections.select { |reflection| reflection.macro == macro } : association_reflections
+      end
+
+      # Returns the AssociationReflection object for the named +aggregation+ (use the symbol). Example:
+      #   Account.reflect_on_association(:owner) # returns the owner AssociationReflection
+      #   Invoice.reflect_on_association(:line_items).macro  # returns :has_many
+      def reflect_on_association(association)
+        reflections[association].is_a?(AssociationReflection) ? reflections[association] : nil
+      end
+    end
+
+
+    # Abstract base class for AggregateReflection and AssociationReflection that describes the interface available for both of
+    # those classes. Objects of AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods.
+    class MacroReflection
+      attr_reader :active_record
+      def initialize(macro, name, options, active_record)
+        @macro, @name, @options, @active_record = macro, name, options, active_record
+      end
+
+      # Returns the name of the macro, so it would return :balance for "composed_of :balance, :class_name => 'Money'" or
+      # :clients for "has_many :clients".
+      def name
+        @name
+      end
+
+      # Returns the name of the macro, so it would return :composed_of for
+      # "composed_of :balance, :class_name => 'Money'" or :has_many for "has_many :clients".
+      def macro
+        @macro
+      end
+
+      # Returns the hash of options used for the macro, so it would return { :class_name => "Money" } for
+      # "composed_of :balance, :class_name => 'Money'" or {} for "has_many :clients".
+      def options
+        @options
+      end
+
+      # Returns the class for the macro, so "composed_of :balance, :class_name => 'Money'" would return the Money class and
+      # "has_many :clients" would return the Client class.
+      def klass() end
+        
+      def class_name
+        @class_name ||= name_to_class_name(name.id2name)
+      end
+
+      def ==(other_aggregation)
+        name == other_aggregation.name && other_aggregation.options && active_record == other_aggregation.active_record
+      end
+    end
+
+
+    # Holds all the meta-data about an aggregation as it was specified in the Active Record class.
+    class AggregateReflection < MacroReflection #:nodoc:
+      def klass
+        @klass ||= Object.const_get(options[:class_name] || class_name)
+      end
+
+      private
+        def name_to_class_name(name)
+          name.capitalize.gsub(/_(.)/) { |s| $1.capitalize }
+        end
+    end
+
+    # Holds all the meta-data about an association as it was specified in the Active Record class.
+    class AssociationReflection < MacroReflection #:nodoc:
+      def klass
+        @klass ||= active_record.send(:compute_type, class_name)
+      end
+
+      def table_name
+        @table_name ||= klass.table_name
+      end
+
+      def primary_key_name
+        return @primary_key_name if @primary_key_name
+        case
+          when macro == :belongs_to
+            @primary_key_name = options[:foreign_key] || class_name.foreign_key
+          when options[:as]
+            @primary_key_name = options[:foreign_key] || "#{options[:as]}_id"
+          else
+            @primary_key_name = options[:foreign_key] || active_record.name.foreign_key
+        end
+      end
+      
+      def association_foreign_key
+        @association_foreign_key ||= @options[:association_foreign_key] || class_name.foreign_key
+      end
+
+      def counter_cache_column
+        if options[:counter_cache] == true
+          "#{active_record.name.underscore.pluralize}_count"
+        elsif options[:counter_cache]
+          options[:counter_cache]
+        end
+      end
+
+      def through_reflection
+        @through_reflection ||= options[:through] ? active_record.reflect_on_association(options[:through]) : false
+      end
+
+      # Gets an array of possible :through source reflection names
+      #
+      #   [singularized, pluralized]
+      def source_reflection_names
+        @source_reflection_names ||= (options[:source] ? [options[:source]] : [name.to_s.singularize, name]).collect { |n| n.to_sym }
+      end
+
+      # Gets the source of the through reflection.  It checks both a singularized and pluralized form for :belongs_to or :has_many.
+      # (The :tags association on Tagging below)
+      # 
+      #   class Post
+      #     has_many :tags, :through => :taggings
+      #   end
+      #
+      def source_reflection
+        return nil unless through_reflection
+        @source_reflection ||= source_reflection_names.collect { |name| through_reflection.klass.reflect_on_association(name) }.compact.first
+      end
+
+      def check_validity!
+        if options[:through]
+          if through_reflection.nil?
+            raise HasManyThroughAssociationNotFoundError.new(self)
+          end
+          
+          if source_reflection.nil?
+            raise HasManyThroughSourceAssociationNotFoundError.new(self)
+          end
+          
+          if source_reflection.options[:polymorphic]
+            raise HasManyThroughAssociationPolymorphicError.new(class_name, self, source_reflection)
+          end
+          
+          unless [:belongs_to, :has_many].include?(source_reflection.macro) && source_reflection.options[:through].nil?
+            raise HasManyThroughSourceAssociationMacroError.new(self)
+          end
+        end
+      end
+
+      private
+        def name_to_class_name(name)
+          if name =~ /::/
+            name
+          else
+            if options[:class_name]
+              options[:class_name]
+            elsif through_reflection # get the class_name of the belongs_to association of the through reflection
+              source_reflection.class_name
+            else
+              class_name = name.to_s.camelize
+              class_name = class_name.singularize if [ :has_many, :has_and_belongs_to_many ].include?(macro)
+              class_name
+            end
+          end
+        end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/schema.rb

@@ -0,0 +1,58 @@
+module ActiveRecord
+  # Allows programmers to programmatically define a schema in a portable
+  # DSL. This means you can define tables, indexes, etc. without using SQL
+  # directly, so your applications can more easily support multiple
+  # databases.
+  #
+  # Usage:
+  #
+  #   ActiveRecord::Schema.define do
+  #     create_table :authors do |t|
+  #       t.column :name, :string, :null => false
+  #     end
+  #
+  #     add_index :authors, :name, :unique
+  #
+  #     create_table :posts do |t|
+  #       t.column :author_id, :integer, :null => false
+  #       t.column :subject, :string
+  #       t.column :body, :text
+  #       t.column :private, :boolean, :default => false
+  #     end
+  #
+  #     add_index :posts, :author_id
+  #   end
+  #
+  # ActiveRecord::Schema is only supported by database adapters that also
+  # support migrations, the two features being very similar.
+  class Schema < Migration
+    private_class_method :new
+
+    # Eval the given block. All methods available to the current connection
+    # adapter are available within the block, so you can easily use the
+    # database definition DSL to build up your schema (#create_table,
+    # #add_index, etc.).
+    #
+    # The +info+ hash is optional, and if given is used to define metadata
+    # about the current schema (like the schema's version):
+    #
+    #   ActiveRecord::Schema.define(:version => 15) do
+    #     ...
+    #   end
+    def self.define(info={}, &block)
+      instance_eval(&block)
+
+      unless info.empty?
+        initialize_schema_information
+        cols = columns('schema_info')
+
+        info = info.map do |k,v|
+          v = Base.connection.quote(v, cols.detect { |c| c.name == k.to_s })
+          "#{k} = #{v}"
+        end
+
+        Base.connection.update "UPDATE #{Migrator.schema_info_table_name} SET #{info.join(", ")}"
+      end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/schema_dumper.rb

@@ -0,0 +1,121 @@
+module ActiveRecord
+  # This class is used to dump the database schema for some connection to some
+  # output format (i.e., ActiveRecord::Schema).
+  class SchemaDumper #:nodoc:
+    private_class_method :new
+    
+    # A list of tables which should not be dumped to the schema. 
+    # Acceptable values are strings as well as regexp.
+    # This setting is only used if ActiveRecord::Base.schema_format == :ruby
+    cattr_accessor :ignore_tables 
+    @@ignore_tables = []
+
+    def self.dump(connection=ActiveRecord::Base.connection, stream=STDOUT)
+      new(connection).dump(stream)
+      stream
+    end
+
+    def dump(stream)
+      header(stream)
+      tables(stream)
+      trailer(stream)
+      stream
+    end
+
+    private
+
+      def initialize(connection)
+        @connection = connection
+        @types = @connection.native_database_types
+        @info = @connection.select_one("SELECT * FROM schema_info") rescue nil
+      end
+
+      def header(stream)
+        define_params = @info ? ":version => #{@info['version']}" : ""
+
+        stream.puts <<HEADER
+# This file is autogenerated. Instead of editing this file, please use the
+# migrations feature of ActiveRecord to incrementally modify your database, and
+# then regenerate this schema definition.
+
+ActiveRecord::Schema.define(#{define_params}) do
+
+HEADER
+      end
+
+      def trailer(stream)
+        stream.puts "end"
+      end
+
+      def tables(stream)
+        @connection.tables.sort.each do |tbl|
+          next if ["schema_info", ignore_tables].flatten.any? do |ignored|
+            case ignored
+            when String: tbl == ignored
+            when Regexp: tbl =~ ignored
+            else
+              raise StandardError, 'ActiveRecord::SchemaDumper.ignore_tables accepts an array of String and / or Regexp values.'
+            end
+          end 
+          table(tbl, stream)
+        end
+      end
+
+      def table(table, stream)
+        columns = @connection.columns(table)
+        begin
+          tbl = StringIO.new
+
+          if @connection.respond_to?(:pk_and_sequence_for)
+            pk, pk_seq = @connection.pk_and_sequence_for(table)
+          end
+          pk ||= 'id'
+
+          tbl.print "  create_table #{table.inspect}"
+          if columns.detect { |c| c.name == pk }
+            if pk != 'id'
+              tbl.print %Q(, :primary_key => "#{pk}")
+            end
+          else
+            tbl.print ", :id => false"
+          end
+          tbl.print ", :force => true"
+          tbl.puts " do |t|"
+
+          columns.each do |column|
+            raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" if @types[column.type].nil?
+            next if column.name == pk
+            tbl.print "    t.column #{column.name.inspect}, #{column.type.inspect}"
+            tbl.print ", :limit => #{column.limit.inspect}" if column.limit != @types[column.type][:limit] 
+            tbl.print ", :default => #{column.default.inspect}" if !column.default.nil?
+            tbl.print ", :null => false" if !column.null
+            tbl.puts
+          end
+
+          tbl.puts "  end"
+          tbl.puts
+          
+          indexes(table, tbl)
+
+          tbl.rewind
+          stream.print tbl.read
+        rescue => e
+          stream.puts "# Could not dump table #{table.inspect} because of following #{e.class}"
+          stream.puts "#   #{e.message}"
+          stream.puts
+        end
+        
+        stream
+      end
+
+      def indexes(table, stream)
+        indexes = @connection.indexes(table)
+        indexes.each do |index|
+          stream.print "  add_index #{index.table.inspect}, #{index.columns.inspect}, :name => #{index.name.inspect}"
+          stream.print ", :unique => true" if index.unique
+          stream.puts
+        end
+        stream.puts unless indexes.empty?
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/timestamp.rb

@@ -0,0 +1,62 @@
+module ActiveRecord
+  # Active Records will automatically record creation and/or update timestamps of database objects
+  # if fields of the names created_at/created_on or updated_at/updated_on are present. This module is
+  # automatically included, so you don't need to do that manually.
+  #
+  # This behavior can be turned off by setting <tt>ActiveRecord::Base.record_timestamps = false</tt>.
+  # This behavior by default uses local time, but can use UTC by setting <tt>ActiveRecord::Base.default_timezone = :utc</tt>
+  module Timestamp
+    def self.append_features(base) # :nodoc:
+      super
+
+      base.class_eval do
+        alias_method :create_without_timestamps, :create
+        alias_method :create, :create_with_timestamps
+
+        alias_method :update_without_timestamps, :update
+        alias_method :update, :update_with_timestamps
+      end
+    end
+
+    def create_with_timestamps #:nodoc:
+      if record_timestamps
+      t = ( self.class.default_timezone == :utc ? Time.now.utc : Time.now )
+        write_attribute('created_at', t) if respond_to?(:created_at) && created_at.nil?
+        write_attribute('created_on', t) if respond_to?(:created_on) && created_on.nil?
+
+        write_attribute('updated_at', t) if respond_to?(:updated_at)
+        write_attribute('updated_on', t) if respond_to?(:updated_on)
+      end
+      create_without_timestamps
+    end
+
+    def update_with_timestamps #:nodoc:
+      if record_timestamps
+      t = ( self.class.default_timezone == :utc ? Time.now.utc : Time.now )
+        write_attribute('updated_at', t) if respond_to?(:updated_at)
+        write_attribute('updated_on', t) if respond_to?(:updated_on)
+      end
+      update_without_timestamps
+    end
+  end
+
+  class Base
+    # Records the creation date and possibly time in created_on (date only) or created_at (date and time) and the update date and possibly
+    # time in updated_on and updated_at. This only happens if the object responds to either of these messages, which they will do automatically
+    # if the table has columns of either of these names. This feature is turned on by default.
+    @@record_timestamps = true
+    cattr_accessor :record_timestamps
+
+    # deprecated: use ActiveRecord::Base.default_timezone instead.
+    @@timestamps_gmt = false
+    def self.timestamps_gmt=( gmt ) #:nodoc:
+      warn "timestamps_gmt= is deprecated. use default_timezone= instead"
+      self.default_timezone = ( gmt ? :utc : :local )
+    end
+
+    def self.timestamps_gmt #:nodoc:
+      warn "timestamps_gmt is deprecated. use default_timezone instead"
+      self.default_timezone == :utc
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/transactions.rb

@@ -0,0 +1,129 @@
+require 'active_record/vendor/simple.rb'
+Transaction::Simple.send(:remove_method, :transaction)
+require 'thread'
+
+module ActiveRecord
+  module Transactions # :nodoc:
+    TRANSACTION_MUTEX = Mutex.new
+
+    class TransactionError < ActiveRecordError # :nodoc:
+    end
+
+    def self.append_features(base)
+      super
+      base.extend(ClassMethods)
+
+      base.class_eval do
+        alias_method :destroy_without_transactions, :destroy
+        alias_method :destroy, :destroy_with_transactions
+
+        alias_method :save_without_transactions, :save
+        alias_method :save, :save_with_transactions
+      end
+    end
+
+    # Transactions are protective blocks where SQL statements are only permanent if they can all succeed as one atomic action. 
+    # The classic example is a transfer between two accounts where you can only have a deposit if the withdrawal succeeded and
+    # vice versa. Transactions enforce the integrity of the database and guard the data against program errors or database break-downs.
+    # So basically you should use transaction blocks whenever you have a number of statements that must be executed together or
+    # not at all. Example:
+    #
+    #   transaction do
+    #     david.withdrawal(100)
+    #     mary.deposit(100)
+    #   end
+    #
+    # This example will only take money from David and give to Mary if neither +withdrawal+ nor +deposit+ raises an exception.
+    # Exceptions will force a ROLLBACK that returns the database to the state before the transaction was begun. Be aware, though,
+    # that the objects by default will _not_ have their instance data returned to their pre-transactional state.
+    #
+    # == Transactions are not distributed across database connections
+    #
+    # A transaction acts on a single database connection.  If you have
+    # multiple class-specific databases, the transaction will not protect
+    # interaction among them.  One workaround is to begin a transaction
+    # on each class whose models you alter:
+    #
+    #   Student.transaction do
+    #     Course.transaction do
+    #       course.enroll(student)
+    #       student.units += course.units
+    #     end
+    #   end
+    #
+    # This is a poor solution, but full distributed transactions are beyond
+    # the scope of Active Record.
+    #
+    # == Save and destroy are automatically wrapped in a transaction
+    #
+    # Both Base#save and Base#destroy come wrapped in a transaction that ensures that whatever you do in validations or callbacks
+    # will happen under the protected cover of a transaction. So you can use validations to check for values that the transaction
+    # depend on or you can raise exceptions in the callbacks to rollback.
+    #
+    # == Object-level transactions
+    #
+    # You can enable object-level transactions for Active Record objects, though. You do this by naming each of the Active Records
+    # that you want to enable object-level transactions for, like this:
+    #
+    #   Account.transaction(david, mary) do
+    #     david.withdrawal(100)
+    #     mary.deposit(100)
+    #   end
+    #
+    # If the transaction fails, David and Mary will be returned to their pre-transactional state. No money will have changed hands in
+    # neither object nor database.
+    #
+    # == Exception handling
+    #
+    # Also have in mind that exceptions thrown within a transaction block will be propagated (after triggering the ROLLBACK), so you
+    # should be ready to catch those in your application code.
+    #
+    # Tribute: Object-level transactions are implemented by Transaction::Simple by Austin Ziegler.
+    module ClassMethods
+      def transaction(*objects, &block)
+        previous_handler = trap('TERM') { raise TransactionError, "Transaction aborted" }
+        lock_mutex
+        
+        begin
+          objects.each { |o| o.extend(Transaction::Simple) }
+          objects.each { |o| o.start_transaction }
+
+          result = connection.transaction(Thread.current['start_db_transaction'], &block)
+
+          objects.each { |o| o.commit_transaction }
+          return result
+        rescue Exception => object_transaction_rollback
+          objects.each { |o| o.abort_transaction }
+          raise
+        ensure
+          unlock_mutex
+          trap('TERM', previous_handler)
+        end
+      end
+      
+      def lock_mutex#:nodoc:
+        Thread.current['open_transactions'] ||= 0
+        TRANSACTION_MUTEX.lock if Thread.current['open_transactions'] == 0
+        Thread.current['start_db_transaction'] = (Thread.current['open_transactions'] == 0)
+        Thread.current['open_transactions'] += 1
+      end
+      
+      def unlock_mutex#:nodoc:
+        Thread.current['open_transactions'] -= 1
+        TRANSACTION_MUTEX.unlock if Thread.current['open_transactions'] == 0
+      end
+    end
+
+    def transaction(*objects, &block)
+      self.class.transaction(*objects, &block)
+    end
+
+    def destroy_with_transactions #:nodoc:
+      transaction { destroy_without_transactions }
+    end
+    
+    def save_with_transactions(perform_validation = true) #:nodoc:
+      transaction { save_without_transactions(perform_validation) }
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/validations.rb

@@ -0,0 +1,827 @@
+module ActiveRecord
+  # Raised by save! and create! when the record is invalid.  Use the
+  # record method to retrieve the record which did not validate.
+  #   begin
+  #     complex_operation_that_calls_save!_internally
+  #   rescue ActiveRecord::RecordInvalid => invalid
+  #     puts invalid.record.errors
+  #   end
+  class RecordInvalid < ActiveRecordError #:nodoc:
+    attr_reader :record
+    def initialize(record)
+      @record = record
+      super("Validation failed: #{@record.errors.full_messages.join(", ")}")
+    end
+  end
+
+  # Active Record validation is reported to and from this object, which is used by Base#save to
+  # determine whether the object in a valid state to be saved. See usage example in Validations.
+  class Errors
+    include Enumerable
+
+    def initialize(base) # :nodoc:
+      @base, @errors = base, {}
+    end
+
+    @@default_error_messages = {
+      :inclusion => "is not included in the list",
+      :exclusion => "is reserved",
+      :invalid => "is invalid",
+      :confirmation => "doesn't match confirmation",
+      :accepted  => "must be accepted",
+      :empty => "can't be empty",
+      :blank => "can't be blank",
+      :too_long => "is too long (maximum is %d characters)",
+      :too_short => "is too short (minimum is %d characters)",
+      :wrong_length => "is the wrong length (should be %d characters)",
+      :taken => "has already been taken",
+      :not_a_number => "is not a number"
+    }
+
+    # Holds a hash with all the default error messages, such that they can be replaced by your own copy or localizations.
+    cattr_accessor :default_error_messages
+
+
+    # Adds an error to the base object instead of any particular attribute. This is used
+    # to report errors that don't tie to any specific attribute, but rather to the object
+    # as a whole. These error messages don't get prepended with any field name when iterating
+    # with each_full, so they should be complete sentences.
+    def add_to_base(msg)
+      add(:base, msg)
+    end
+
+    # Adds an error message (+msg+) to the +attribute+, which will be returned on a call to <tt>on(attribute)</tt>
+    # for the same attribute and ensure that this error object returns false when asked if <tt>empty?</tt>. More than one
+    # error can be added to the same +attribute+ in which case an array will be returned on a call to <tt>on(attribute)</tt>.
+    # If no +msg+ is supplied, "invalid" is assumed.
+    def add(attribute, msg = @@default_error_messages[:invalid])
+      @errors[attribute.to_s] = [] if @errors[attribute.to_s].nil?
+      @errors[attribute.to_s] << msg
+    end
+
+    # Will add an error message to each of the attributes in +attributes+ that is empty.
+    def add_on_empty(attributes, msg = @@default_error_messages[:empty])
+      for attr in [attributes].flatten
+        value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
+        is_empty = value.respond_to?("empty?") ? value.empty? : false
+        add(attr, msg) unless !value.nil? && !is_empty
+      end
+    end
+
+    # Will add an error message to each of the attributes in +attributes+ that is blank (using Object#blank?).
+    def add_on_blank(attributes, msg = @@default_error_messages[:blank])
+      for attr in [attributes].flatten
+        value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
+        add(attr, msg) if value.blank?
+      end
+    end
+
+    # Will add an error message to each of the attributes in +attributes+ that has a length outside of the passed boundary +range+.
+    # If the length is above the boundary, the too_long_msg message will be used. If below, the too_short_msg.
+    def add_on_boundary_breaking(attributes, range, too_long_msg = @@default_error_messages[:too_long], too_short_msg = @@default_error_messages[:too_short])
+      for attr in [attributes].flatten
+        value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
+        add(attr, too_short_msg % range.begin) if value && value.length < range.begin
+        add(attr, too_long_msg % range.end) if value && value.length > range.end
+      end
+    end
+
+    alias :add_on_boundry_breaking :add_on_boundary_breaking
+
+    # Returns true if the specified +attribute+ has errors associated with it.
+    def invalid?(attribute)
+      !@errors[attribute.to_s].nil?
+    end
+
+    # * Returns nil, if no errors are associated with the specified +attribute+.
+    # * Returns the error message, if one error is associated with the specified +attribute+.
+    # * Returns an array of error messages, if more than one error is associated with the specified +attribute+.
+    def on(attribute)
+      if @errors[attribute.to_s].nil?
+        nil
+      elsif @errors[attribute.to_s].length == 1
+        @errors[attribute.to_s].first
+      else
+        @errors[attribute.to_s]
+      end
+    end
+
+    alias :[] :on
+
+    # Returns errors assigned to base object through add_to_base according to the normal rules of on(attribute).
+    def on_base
+      on(:base)
+    end
+
+    # Yields each attribute and associated message per error added.
+    def each
+      @errors.each_key { |attr| @errors[attr].each { |msg| yield attr, msg } }
+    end
+
+    # Yields each full error message added. So Person.errors.add("first_name", "can't be empty") will be returned
+    # through iteration as "First name can't be empty".
+    def each_full
+      full_messages.each { |msg| yield msg }
+    end
+
+    # Returns all the full error messages in an array.
+    def full_messages
+      full_messages = []
+
+      @errors.each_key do |attr|
+        @errors[attr].each do |msg|
+          next if msg.nil?
+
+          if attr == "base"
+            full_messages << msg
+          else
+            full_messages << @base.class.human_attribute_name(attr) + " " + msg
+          end
+        end
+      end
+
+      return full_messages
+    end
+
+    # Returns true if no errors have been added.
+    def empty?
+      return @errors.empty?
+    end
+    
+    # Removes all the errors that have been added.
+    def clear
+      @errors = {}
+    end
+
+    # Returns the total number of errors added. Two errors added to the same attribute will be counted as such
+    # with this as well.
+    def size
+      error_count = 0
+      @errors.each_value { |attribute| error_count += attribute.length }
+      error_count
+    end
+    
+    alias_method :count, :size
+    alias_method :length, :size
+  end
+
+
+  # Active Records implement validation by overwriting Base#validate (or the variations, +validate_on_create+ and
+  # +validate_on_update+). Each of these methods can inspect the state of the object, which usually means ensuring
+  # that a number of attributes have a certain value (such as not empty, within a given range, matching a certain regular expression).
+  #
+  # Example:
+  #
+  #   class Person < ActiveRecord::Base
+  #     protected
+  #       def validate
+  #         errors.add_on_empty %w( first_name last_name )
+  #         errors.add("phone_number", "has invalid format") unless phone_number =~ /[0-9]*/
+  #       end
+  #
+  #       def validate_on_create # is only run the first time a new object is saved
+  #         unless valid_discount?(membership_discount)
+  #           errors.add("membership_discount", "has expired")
+  #         end
+  #       end
+  #
+  #       def validate_on_update
+  #         errors.add_to_base("No changes have occurred") if unchanged_attributes?
+  #       end
+  #   end
+  #
+  #   person = Person.new("first_name" => "David", "phone_number" => "what?")
+  #   person.save                         # => false (and doesn't do the save)
+  #   person.errors.empty?                # => false
+  #   person.errors.count                 # => 2
+  #   person.errors.on "last_name"        # => "can't be empty"
+  #   person.errors.on "phone_number"     # => "has invalid format"
+  #   person.errors.each_full { |msg| puts msg }
+  #                                       # => "Last name can't be empty\n" +
+  #                                            "Phone number has invalid format"
+  #
+  #   person.attributes = { "last_name" => "Heinemeier", "phone_number" => "555-555" }
+  #   person.save # => true (and person is now saved in the database)
+  #
+  # An +Errors+ object is automatically created for every Active Record.
+  #
+  # Please do have a look at ActiveRecord::Validations::ClassMethods for a higher level of validations.
+  module Validations
+    VALIDATIONS = %w( validate validate_on_create validate_on_update )
+
+    def self.append_features(base) # :nodoc:
+      super
+      base.extend ClassMethods
+      base.class_eval do
+        alias_method :save_without_validation, :save
+        alias_method :save, :save_with_validation
+
+        alias_method :save_without_validation!, :save!
+        alias_method :save!, :save_with_validation!
+
+        alias_method :update_attribute_without_validation_skipping, :update_attribute
+        alias_method :update_attribute, :update_attribute_with_validation_skipping
+      end
+    end
+
+    # All of the following validations are defined in the class scope of the model that you're interested in validating.
+    # They offer a more declarative way of specifying when the model is valid and when it is not. It is recommended to use
+    # these over the low-level calls to validate and validate_on_create when possible.
+    module ClassMethods
+      DEFAULT_VALIDATION_OPTIONS = {
+        :on => :save,
+        :allow_nil => false,
+        :message => nil
+      }.freeze
+
+      ALL_RANGE_OPTIONS = [ :is, :within, :in, :minimum, :maximum ].freeze
+
+      def validate(*methods, &block)
+        methods << block if block_given?
+        write_inheritable_set(:validate, methods)
+      end
+
+      def validate_on_create(*methods, &block)
+        methods << block if block_given?
+        write_inheritable_set(:validate_on_create, methods)
+      end
+
+      def validate_on_update(*methods, &block)
+        methods << block if block_given?
+        write_inheritable_set(:validate_on_update, methods)
+      end
+
+      def condition_block?(condition)
+        condition.respond_to?("call") && (condition.arity == 1 || condition.arity == -1)
+      end
+
+      # Determine from the given condition (whether a block, procedure, method or string)
+      # whether or not to validate the record.  See #validates_each.
+      def evaluate_condition(condition, record)
+        case condition
+          when Symbol: record.send(condition)
+          when String: eval(condition, binding)
+          else
+            if condition_block?(condition)
+              condition.call(record)
+            else
+              raise(
+                ActiveRecordError,
+                "Validations need to be either a symbol, string (to be eval'ed), proc/method, or " +
+                "class implementing a static validation method"
+              )
+            end
+          end
+      end
+
+      # Validates each attribute against a block.
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_each :first_name, :last_name do |record, attr, value|
+      #       record.errors.add attr, 'starts with z.' if value[0] == ?z
+      #     end
+      #   end
+      #
+      # Options:
+      # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>allow_nil</tt> - Skip validation if attribute is nil.
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_each(*attrs)
+        options = attrs.last.is_a?(Hash) ? attrs.pop.symbolize_keys : {}
+        attrs = attrs.flatten
+
+        # Declare the validation.
+        send(validation_method(options[:on] || :save)) do |record|
+          # Don't validate when there is an :if condition and that condition is false
+          unless options[:if] && !evaluate_condition(options[:if], record)
+            attrs.each do |attr|
+              value = record.send(attr)
+              next if value.nil? && options[:allow_nil]
+              yield record, attr, value
+            end
+          end
+        end
+      end
+
+      # Encapsulates the pattern of wanting to validate a password or email address field with a confirmation. Example:
+      #
+      #   Model:
+      #     class Person < ActiveRecord::Base
+      #       validates_confirmation_of :user_name, :password
+      #       validates_confirmation_of :email_address, :message => "should match confirmation"
+      #     end
+      #
+      #   View:
+      #     <%= password_field "person", "password" %>
+      #     <%= password_field "person", "password_confirmation" %>
+      #
+      # The person has to already have a password attribute (a column in the people table), but the password_confirmation is virtual.
+      # It exists only as an in-memory variable for validating the password. This check is performed only if password_confirmation
+      # is not nil and by default on save.
+      #
+      # Configuration options:
+      # * <tt>message</tt> - A custom error message (default is: "doesn't match confirmation")
+      # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_confirmation_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:confirmation], :on => :save }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        attr_accessor *(attr_names.map { |n| "#{n}_confirmation" })
+
+        validates_each(attr_names, configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) unless record.send("#{attr_name}_confirmation").nil? or value == record.send("#{attr_name}_confirmation")
+        end
+      end
+
+      # Encapsulates the pattern of wanting to validate the acceptance of a terms of service check box (or similar agreement). Example:
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_acceptance_of :terms_of_service
+      #     validates_acceptance_of :eula, :message => "must be abided"
+      #   end
+      #
+      # The terms_of_service attribute is entirely virtual. No database column is needed. This check is performed only if
+      # terms_of_service is not nil and by default on save.
+      #
+      # Configuration options:
+      # * <tt>message</tt> - A custom error message (default is: "must be accepted")
+      # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>accept</tt> - Specifies value that is considered accepted.  The default value is a string "1", which
+      # makes it easy to relate to an HTML checkbox.
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_acceptance_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:accepted], :on => :save, :allow_nil => true, :accept => "1" }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        attr_accessor *attr_names
+
+        validates_each(attr_names,configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) unless value == configuration[:accept]
+        end
+      end
+
+      # Validates that the specified attributes are not blank (as defined by Object#blank?). Happens by default on save. Example:
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_presence_of :first_name
+      #   end
+      #
+      # The first_name attribute must be in the object and it cannot be blank.
+      #      
+      # Configuration options:
+      # * <tt>message</tt> - A custom error message (default is: "can't be blank")
+      # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      #
+      # === Warning
+      # Validate the presence of the foreign key, not the instance variable itself.
+      # Do this:
+      #  validate_presence_of :invoice_id
+      #
+      # Not this:
+      #  validate_presence_of :invoice
+      #
+      # If you validate the presence of the associated object, you will get
+      # failures on saves when both the parent object and the child object are
+      # new.
+      def validates_presence_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:blank], :on => :save }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        # can't use validates_each here, because it cannot cope with nonexistent attributes,
+        # while errors.add_on_empty can
+        attr_names.each do |attr_name|
+          send(validation_method(configuration[:on])) do |record|
+            unless configuration[:if] and not evaluate_condition(configuration[:if], record)
+              record.errors.add_on_blank(attr_name,configuration[:message])
+            end
+          end
+        end
+      end
+
+      # Validates that the specified attribute matches the length restrictions supplied. Only one option can be used at a time:
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_length_of :first_name, :maximum=>30
+      #     validates_length_of :last_name, :maximum=>30, :message=>"less than %d if you don't mind"
+      #     validates_length_of :fax, :in => 7..32, :allow_nil => true
+      #     validates_length_of :user_name, :within => 6..20, :too_long => "pick a shorter name", :too_short => "pick a longer name"
+      #     validates_length_of :fav_bra_size, :minimum=>1, :too_short=>"please enter at least %d character"
+      #     validates_length_of :smurf_leader, :is=>4, :message=>"papa is spelled with %d characters... don't play me."
+      #   end
+      #
+      # Configuration options:
+      # * <tt>minimum</tt> - The minimum size of the attribute
+      # * <tt>maximum</tt> - The maximum size of the attribute
+      # * <tt>is</tt> - The exact size of the attribute
+      # * <tt>within</tt> - A range specifying the minimum and maximum size of the attribute
+      # * <tt>in</tt> - A synonym(or alias) for :within
+      # * <tt>allow_nil</tt> - Attribute may be nil; skip validation.
+      #
+      # * <tt>too_long</tt> - The error message if the attribute goes over the maximum (default is: "is too long (maximum is %d characters)")
+      # * <tt>too_short</tt> - The error message if the attribute goes under the minimum (default is: "is too short (min is %d characters)")
+      # * <tt>wrong_length</tt> - The error message if using the :is method and the attribute is the wrong size (default is: "is the wrong length (should be %d characters)")
+      # * <tt>message</tt> - The error message to use for a :minimum, :maximum, or :is violation.  An alias of the appropriate too_long/too_short/wrong_length message
+      # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_length_of(*attrs)
+        # Merge given options with defaults.
+        options = {
+          :too_long     => ActiveRecord::Errors.default_error_messages[:too_long],
+          :too_short    => ActiveRecord::Errors.default_error_messages[:too_short],
+          :wrong_length => ActiveRecord::Errors.default_error_messages[:wrong_length]
+        }.merge(DEFAULT_VALIDATION_OPTIONS)
+        options.update(attrs.pop.symbolize_keys) if attrs.last.is_a?(Hash)
+
+        # Ensure that one and only one range option is specified.
+        range_options = ALL_RANGE_OPTIONS & options.keys
+        case range_options.size
+          when 0
+            raise ArgumentError, 'Range unspecified.  Specify the :within, :maximum, :minimum, or :is option.'
+          when 1
+            # Valid number of options; do nothing.
+          else
+            raise ArgumentError, 'Too many range options specified.  Choose only one.'
+        end
+
+        # Get range option and value.
+        option = range_options.first
+        option_value = options[range_options.first]
+
+        case option
+          when :within, :in
+            raise ArgumentError, ":#{option} must be a Range" unless option_value.is_a?(Range)
+
+            too_short = options[:too_short] % option_value.begin
+            too_long  = options[:too_long]  % option_value.end
+
+            validates_each(attrs, options) do |record, attr, value|
+              if value.nil? or value.split(//).size < option_value.begin
+                record.errors.add(attr, too_short)
+              elsif value.split(//).size > option_value.end
+                record.errors.add(attr, too_long)
+              end
+            end
+          when :is, :minimum, :maximum
+            raise ArgumentError, ":#{option} must be a nonnegative Integer" unless option_value.is_a?(Integer) and option_value >= 0
+
+            # Declare different validations per option.
+            validity_checks = { :is => "==", :minimum => ">=", :maximum => "<=" }
+            message_options = { :is => :wrong_length, :minimum => :too_short, :maximum => :too_long }
+
+            message = (options[:message] || options[message_options[option]]) % option_value
+
+            validates_each(attrs, options) do |record, attr, value|
+              if value.kind_of?(String)
+                record.errors.add(attr, message) unless !value.nil? and value.split(//).size.method(validity_checks[option])[option_value]
+              else
+                record.errors.add(attr, message) unless !value.nil? and value.size.method(validity_checks[option])[option_value]
+              end
+            end
+        end
+      end
+
+      alias_method :validates_size_of, :validates_length_of
+
+
+      # Validates whether the value of the specified attributes are unique across the system. Useful for making sure that only one user
+      # can be named "davidhh".
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_uniqueness_of :user_name, :scope => :account_id
+      #   end
+      #
+      # It can also validate whether the value of the specified attributes are unique based on multiple scope parameters.  For example,
+      # making sure that a teacher can only be on the schedule once per semester for a particular class. 
+      #
+      #   class TeacherSchedule < ActiveRecord::Base
+      #     validates_uniqueness_of :teacher_id, :scope => [:semester_id, :class_id] 
+      #   end
+      #
+      # When the record is created, a check is performed to make sure that no record exists in the database with the given value for the specified
+      # attribute (that maps to a column). When the record is updated, the same check is made but disregarding the record itself.
+      #
+      # Configuration options:
+      # * <tt>message</tt> - Specifies a custom error message (default is: "has already been taken")
+      # * <tt>scope</tt> - One or more columns by which to limit the scope of the uniquness constraint.
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+       
+      def validates_uniqueness_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:taken] }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        validates_each(attr_names,configuration) do |record, attr_name, value|
+          condition_sql = "#{record.class.table_name}.#{attr_name} #{attribute_condition(value)}"
+          condition_params = [value]
+          if scope = configuration[:scope]
+            Array(scope).map do |scope_item|
+              scope_value = record.send(scope_item)
+              condition_sql << " AND #{record.class.table_name}.#{scope_item} #{attribute_condition(scope_value)}"
+              condition_params << scope_value
+            end
+          end
+          unless record.new_record?
+            condition_sql << " AND #{record.class.table_name}.#{record.class.primary_key} <> ?"
+            condition_params << record.send(:id)
+          end
+          if record.class.find(:first, :conditions => [condition_sql, *condition_params])
+            record.errors.add(attr_name, configuration[:message])
+          end
+        end
+      end
+
+      # Validates whether the value of the specified attribute is of the correct form by matching it against the regular expression
+      # provided.
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :on => :create
+      #   end
+      #
+      # A regular expression must be provided or else an exception will be raised.
+      #
+      # Configuration options:
+      # * <tt>message</tt> - A custom error message (default is: "is invalid")
+      # * <tt>with</tt> - The regular expression used to validate the format with (note: must be supplied!)
+      # * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_format_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:invalid], :on => :save, :with => nil }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        raise(ArgumentError, "A regular expression must be supplied as the :with option of the configuration hash") unless configuration[:with].is_a?(Regexp)
+
+        validates_each(attr_names, configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) unless value.to_s =~ configuration[:with]
+        end
+      end
+
+      # Validates whether the value of the specified attribute is available in a particular enumerable object.
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_inclusion_of :gender, :in=>%w( m f ), :message=>"woah! what are you then!??!!"
+      #     validates_inclusion_of :age, :in=>0..99
+      #   end
+      #
+      # Configuration options:
+      # * <tt>in</tt> - An enumerable object of available items
+      # * <tt>message</tt> - Specifies a customer error message (default is: "is not included in the list")
+      # * <tt>allow_nil</tt> - If set to true, skips this validation if the attribute is null (default is: false)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_inclusion_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:inclusion], :on => :save }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        enum = configuration[:in] || configuration[:within]
+
+        raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?("include?")
+
+        validates_each(attr_names, configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) unless enum.include?(value)
+        end
+      end
+
+      # Validates that the value of the specified attribute is not in a particular enumerable object.
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_exclusion_of :username, :in => %w( admin superuser ), :message => "You don't belong here"
+      #     validates_exclusion_of :age, :in => 30..60, :message => "This site is only for under 30 and over 60"
+      #   end
+      #
+      # Configuration options:
+      # * <tt>in</tt> - An enumerable object of items that the value shouldn't be part of
+      # * <tt>message</tt> - Specifies a customer error message (default is: "is reserved")
+      # * <tt>allow_nil</tt> - If set to true, skips this validation if the attribute is null (default is: false)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_exclusion_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:exclusion], :on => :save }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        enum = configuration[:in] || configuration[:within]
+
+        raise(ArgumentError, "An object with the method include? is required must be supplied as the :in option of the configuration hash") unless enum.respond_to?("include?")
+
+        validates_each(attr_names, configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) if enum.include?(value)
+        end
+      end
+
+      # Validates whether the associated object or objects are all valid themselves. Works with any kind of association.
+      #
+      #   class Book < ActiveRecord::Base
+      #     has_many :pages
+      #     belongs_to :library
+      #
+      #     validates_associated :pages, :library
+      #   end
+      #
+      # Warning: If, after the above definition, you then wrote:
+      #
+      #   class Page < ActiveRecord::Base
+      #     belongs_to :book
+      #
+      #     validates_associated :book
+      #   end
+      #
+      # ...this would specify a circular dependency and cause infinite recursion.
+      #
+      # NOTE: This validation will not fail if the association hasn't been assigned. If you want to ensure that the association
+      # is both present and guaranteed to be valid, you also need to use validates_presence_of.
+      #
+      # Configuration options:
+      # * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_associated(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:invalid], :on => :save }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        validates_each(attr_names, configuration) do |record, attr_name, value|
+          record.errors.add(attr_name, configuration[:message]) unless
+            (value.is_a?(Array) ? value : [value]).all? { |r| r.nil? or r.valid? }
+        end
+      end
+
+      # Validates whether the value of the specified attribute is numeric by trying to convert it to
+      # a float with Kernel.Float (if <tt>integer</tt> is false) or applying it to the regular expression
+      # <tt>/^[\+\-]?\d+$/</tt> (if <tt>integer</tt> is set to true).
+      #
+      #   class Person < ActiveRecord::Base
+      #     validates_numericality_of :value, :on => :create
+      #   end
+      #
+      # Configuration options:
+      # * <tt>message</tt> - A custom error message (default is: "is not a number")
+      # * <tt>on</tt> Specifies when this validation is active (default is :save, other options :create, :update)
+      # * <tt>only_integer</tt> Specifies whether the value has to be an integer, e.g. an integral value (default is false)
+      # * <tt>allow_nil</tt> Skip validation if attribute is nil (default is false). Notice that for fixnum and float columns empty strings are converted to nil
+      # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should
+      # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }).  The
+      # method, proc or string should return or evaluate to a true or false value.
+      def validates_numericality_of(*attr_names)
+        configuration = { :message => ActiveRecord::Errors.default_error_messages[:not_a_number], :on => :save,
+                           :only_integer => false, :allow_nil => false }
+        configuration.update(attr_names.pop) if attr_names.last.is_a?(Hash)
+
+        if configuration[:only_integer]
+          validates_each(attr_names,configuration) do |record, attr_name,value|
+            record.errors.add(attr_name, configuration[:message]) unless record.send("#{attr_name}_before_type_cast").to_s =~ /^[+-]?\d+$/
+          end
+        else
+          validates_each(attr_names,configuration) do |record, attr_name,value|
+           next if configuration[:allow_nil] and record.send("#{attr_name}_before_type_cast").nil?
+            begin
+              Kernel.Float(record.send("#{attr_name}_before_type_cast").to_s)
+            rescue ArgumentError, TypeError
+              record.errors.add(attr_name, configuration[:message])
+            end
+          end
+        end
+      end
+
+
+      # Creates an object just like Base.create but calls save! instead of save
+      # so an exception is raised if the record is invalid.
+      def create!(attributes = nil)
+        if attributes.is_a?(Array)
+          attributes.collect { |attr| create!(attr) }
+        else
+          attributes.reverse_merge!(scope(:create)) if scoped?(:create)
+
+          object = new(attributes)
+          object.save!
+          object
+        end
+      end
+
+
+      private
+        def write_inheritable_set(key, methods)
+          existing_methods = read_inheritable_attribute(key) || []
+          write_inheritable_attribute(key, methods | existing_methods)
+        end
+
+        def validation_method(on)
+          case on
+            when :save   then :validate
+            when :create then :validate_on_create
+            when :update then :validate_on_update
+          end
+        end
+    end
+
+    # The validation process on save can be skipped by passing false. The regular Base#save method is
+    # replaced with this when the validations module is mixed in, which it is by default.
+    def save_with_validation(perform_validation = true)
+      if perform_validation && valid? || !perform_validation
+        save_without_validation
+      else
+        false
+      end
+    end
+
+    # Attempts to save the record just like Base#save but will raise a RecordInvalid exception instead of returning false
+    # if the record is not valid.
+    def save_with_validation!
+      if valid?
+        save_without_validation!
+      else
+        raise RecordInvalid.new(self)
+      end
+    end
+
+    # Updates a single attribute and saves the record without going through the normal validation procedure.
+    # This is especially useful for boolean flags on existing records. The regular +update_attribute+ method
+    # in Base is replaced with this when the validations module is mixed in, which it is by default.
+    def update_attribute_with_validation_skipping(name, value)
+      send(name.to_s + '=', value)
+      save(false)
+    end
+
+    # Runs validate and validate_on_create or validate_on_update and returns true if no errors were added otherwise false.
+    def valid?
+      errors.clear
+
+      run_validations(:validate)
+      validate
+
+      if new_record?
+        run_validations(:validate_on_create)
+        validate_on_create
+      else
+        run_validations(:validate_on_update)
+        validate_on_update
+      end
+
+      errors.empty?
+    end
+
+    # Returns the Errors object that holds all information about attribute error messages.
+    def errors
+      @errors ||= Errors.new(self)
+    end
+
+    protected
+      # Overwrite this method for validation checks on all saves and use Errors.add(field, msg) for invalid attributes.
+      def validate #:doc:
+      end
+
+      # Overwrite this method for validation checks used only on creation.
+      def validate_on_create #:doc:
+      end
+
+      # Overwrite this method for validation checks used only on updates.
+      def validate_on_update # :doc:
+      end
+
+    private
+      def run_validations(validation_method)
+        validations = self.class.read_inheritable_attribute(validation_method.to_sym)
+        if validations.nil? then return end
+        validations.each do |validation|
+          if validation.is_a?(Symbol)
+            self.send(validation)
+          elsif validation.is_a?(String)
+            eval(validation, binding)
+          elsif validation_block?(validation)
+            validation.call(self)
+          elsif validation_class?(validation, validation_method)
+            validation.send(validation_method, self)
+          else
+            raise(
+              ActiveRecordError,
+              "Validations need to be either a symbol, string (to be eval'ed), proc/method, or " +
+              "class implementing a static validation method"
+            )
+          end
+        end
+      end
+
+      def validation_block?(validation)
+        validation.respond_to?("call") && (validation.arity == 1 || validation.arity == -1)
+      end
+
+      def validation_class?(validation, validation_method)
+        validation.respond_to?(validation_method)
+      end
+  end
+end

vendor/rails/activerecord/lib/active_record/vendor/db2.rb

@@ -0,0 +1,362 @@
+require 'db2/db2cli.rb'
+
+module DB2
+  module DB2Util
+    include DB2CLI
+
+    def free() SQLFreeHandle(@handle_type, @handle); end
+    def handle() @handle; end
+
+    def check_rc(rc)
+      if ![SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_NO_DATA_FOUND].include?(rc)
+        rec = 1
+        msg = ''
+        loop do
+          a = SQLGetDiagRec(@handle_type, @handle, rec, 500)
+          break if a[0] != SQL_SUCCESS
+          msg << a[3] if !a[3].nil? and a[3] != '' # Create message.
+          rec += 1
+        end
+        raise "DB2 error: #{msg}"
+      end
+    end
+  end
+
+  class Environment
+    include DB2Util
+
+    def initialize
+      @handle_type = SQL_HANDLE_ENV
+      rc, @handle = SQLAllocHandle(@handle_type, SQL_NULL_HANDLE)
+      check_rc(rc)
+    end
+
+    def data_sources(buffer_length = 1024)
+      retval = []
+      max_buffer_length = buffer_length
+
+      a = SQLDataSources(@handle, SQL_FETCH_FIRST, SQL_MAX_DSN_LENGTH + 1, buffer_length)
+      retval << [a[1], a[3]]
+      max_buffer_length = [max_buffer_length, a[4]].max
+
+      loop do
+        a = SQLDataSources(@handle, SQL_FETCH_NEXT, SQL_MAX_DSN_LENGTH + 1, buffer_length)
+        break if a[0] == SQL_NO_DATA_FOUND
+
+        retval << [a[1], a[3]]
+        max_buffer_length = [max_buffer_length, a[4]].max
+      end
+
+      if max_buffer_length > buffer_length
+        get_data_sources(max_buffer_length)
+      else
+        retval
+      end
+    end
+  end
+
+  class Connection
+    include DB2Util
+
+    def initialize(environment)
+      @env = environment
+      @handle_type = SQL_HANDLE_DBC
+      rc, @handle = SQLAllocHandle(@handle_type, @env.handle)
+      check_rc(rc)
+    end
+
+    def connect(server_name, user_name = '', auth = '')
+      check_rc(SQLConnect(@handle, server_name, user_name.to_s, auth.to_s))
+    end
+
+    def set_connect_attr(attr, value)
+      value += "\0" if value.class == String
+      check_rc(SQLSetConnectAttr(@handle, attr, value))
+    end
+
+    def set_auto_commit_on
+      set_connect_attr(SQL_ATTR_AUTOCOMMIT, SQL_AUTOCOMMIT_ON)
+    end
+
+    def set_auto_commit_off
+      set_connect_attr(SQL_ATTR_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF)
+    end
+
+    def disconnect
+      check_rc(SQLDisconnect(@handle))
+    end
+
+    def rollback
+      check_rc(SQLEndTran(@handle_type, @handle, SQL_ROLLBACK))
+    end
+
+    def commit
+      check_rc(SQLEndTran(@handle_type, @handle, SQL_COMMIT))
+    end
+  end
+
+  class Statement
+    include DB2Util
+
+    def initialize(connection)
+      @conn = connection
+      @handle_type = SQL_HANDLE_STMT
+      @parms = []                           #yun
+      @sql = ''                             #yun
+      @numParms = 0                         #yun
+      @prepared = false                     #yun
+      @parmArray = []                       #yun. attributes of the parameter markers
+      rc, @handle = SQLAllocHandle(@handle_type, @conn.handle)
+      check_rc(rc)
+    end
+
+    def columns(table_name, schema_name = '%')
+      check_rc(SQLColumns(@handle, '', schema_name.upcase, table_name.upcase, '%'))
+      fetch_all
+    end
+
+    def tables(schema_name = '%')
+      check_rc(SQLTables(@handle, '', schema_name.upcase, '%', 'TABLE'))
+      fetch_all
+    end
+
+    def indexes(table_name, schema_name = '')
+      check_rc(SQLStatistics(@handle, '', schema_name.upcase, table_name.upcase, SQL_INDEX_ALL, SQL_ENSURE))
+      fetch_all
+    end
+
+    def prepare(sql)
+      @sql = sql
+      check_rc(SQLPrepare(@handle, sql))
+      rc, @numParms = SQLNumParams(@handle) #number of question marks
+      check_rc(rc)
+      #--------------------------------------------------------------------------
+      # parameter attributes are stored in instance variable @parmArray so that
+      # they are available when execute method is called.
+      #--------------------------------------------------------------------------
+      if @numParms > 0           # get parameter marker attributes
+        1.upto(@numParms) do |i| # parameter number starts from 1
+          rc, type, size, decimalDigits = SQLDescribeParam(@handle, i)
+          check_rc(rc)
+          @parmArray << Parameter.new(type, size, decimalDigits)
+        end
+      end
+      @prepared = true
+      self
+    end
+
+    def execute(*parms)
+      raise "The statement was not prepared" if @prepared == false
+
+      if parms.size == 1 and parms[0].class == Array
+        parms = parms[0]
+      end
+
+      if @numParms != parms.size
+        raise "Number of parameters supplied does not match with the SQL statement"
+      end
+
+      if @numParms > 0            #need to bind parameters
+        #--------------------------------------------------------------------
+        #calling bindParms may not be safe. Look comment below.
+        #--------------------------------------------------------------------
+        #bindParms(parms)
+
+        valueArray = []
+        1.upto(@numParms) do |i|  # parameter number starts from 1
+          type = @parmArray[i - 1].class
+          size = @parmArray[i - 1].size
+          decimalDigits = @parmArray[i - 1].decimalDigits
+
+          if parms[i - 1].class == String
+            valueArray << parms[i - 1]
+          else
+            valueArray << parms[i - 1].to_s
+          end
+
+          rc = SQLBindParameter(@handle, i, type, size, decimalDigits, valueArray[i - 1])
+          check_rc(rc)
+        end
+      end
+
+      check_rc(SQLExecute(@handle))
+
+      if @numParms != 0
+        check_rc(SQLFreeStmt(@handle, SQL_RESET_PARAMS)) # Reset parameters
+      end
+
+      self
+    end
+
+    #-------------------------------------------------------------------------------
+    # The last argument(value) to SQLBindParameter is a deferred argument, that is,
+    # it should be available when SQLExecute is called. Even though "value" is
+    # local to bindParms method, it seems that it is available when SQLExecute
+    # is called. I am not sure whether it would still work if garbage collection
+    # is done between bindParms call and SQLExecute call inside the execute method
+    # above.
+    #-------------------------------------------------------------------------------
+    def bindParms(parms)        # This is the real thing. It uses SQLBindParms
+      1.upto(@numParms) do |i|  # parameter number starts from 1
+        rc, dataType, parmSize, decimalDigits = SQLDescribeParam(@handle, i)
+        check_rc(rc)
+        if parms[i - 1].class == String
+          value = parms[i - 1]
+        else
+          value = parms[i - 1].to_s
+        end
+        rc = SQLBindParameter(@handle, i, dataType, parmSize, decimalDigits, value)
+        check_rc(rc)
+      end
+    end
+ 
+    #------------------------------------------------------------------------------
+    # bind method does not use DB2's SQLBindParams, but replaces "?" in the
+    # SQL statement with the value before passing the SQL statement to DB2.
+    # It is not efficient and can handle only strings since it puts everything in
+    # quotes.
+    #------------------------------------------------------------------------------
+    def bind(sql, args)                #does not use SQLBindParams
+      arg_index = 0
+      result = ""
+      tokens(sql).each do |part|
+        case part
+        when '?'
+          result << "'" + (args[arg_index]) + "'"  #put it into quotes
+          arg_index += 1
+        when '??'
+          result << "?"
+        else
+          result << part
+        end
+      end
+      if arg_index < args.size
+        raise "Too many SQL parameters"
+      elsif arg_index > args.size
+        raise "Not enough SQL parameters"
+      end
+      result
+    end
+
+    ## Break the sql string into parts.
+    #
+    # This is NOT a full lexer for SQL.  It just breaks up the SQL
+    # string enough so that question marks, double question marks and
+    # quoted strings are separated.  This is used when binding
+    # arguments to "?" in the SQL string.  Note: comments are not
+    # handled.
+    #
+    def tokens(sql)
+      toks = sql.scan(/('([^'\\]|''|\\.)*'|"([^"\\]|""|\\.)*"|\?\??|[^'"?]+)/)
+      toks.collect { |t| t[0] }
+    end
+
+    def exec_direct(sql)
+      check_rc(SQLExecDirect(@handle, sql))
+      self
+    end
+
+    def set_cursor_name(name)
+      check_rc(SQLSetCursorName(@handle, name))
+      self
+    end
+
+    def get_cursor_name
+      rc, name = SQLGetCursorName(@handle)
+      check_rc(rc)
+      name
+    end
+
+    def row_count
+      rc, rowcount = SQLRowCount(@handle)
+      check_rc(rc)
+      rowcount
+    end
+
+    def num_result_cols
+      rc, cols = SQLNumResultCols(@handle)
+      check_rc(rc)
+      cols
+    end
+
+    def fetch_all
+      if block_given?
+        while row = fetch do
+          yield row
+        end
+      else
+        res = []
+        while row = fetch do
+          res << row
+        end
+        res
+      end
+    end
+
+    def fetch
+      cols = get_col_desc
+      rc = SQLFetch(@handle)
+      if rc == SQL_NO_DATA_FOUND
+        SQLFreeStmt(@handle, SQL_CLOSE)        # Close cursor
+        SQLFreeStmt(@handle, SQL_RESET_PARAMS) # Reset parameters
+        return nil
+      end
+      raise "ERROR" unless rc == SQL_SUCCESS
+
+      retval = []
+      cols.each_with_index do |c, i|
+        rc, content = SQLGetData(@handle, i + 1, c[1], c[2] + 1) #yun added 1 to c[2]
+        retval << adjust_content(content)
+      end
+      retval
+    end
+
+    def fetch_as_hash
+      cols = get_col_desc
+      rc = SQLFetch(@handle)
+      if rc == SQL_NO_DATA_FOUND
+        SQLFreeStmt(@handle, SQL_CLOSE)        # Close cursor
+        SQLFreeStmt(@handle, SQL_RESET_PARAMS) # Reset parameters
+        return nil
+      end
+      raise "ERROR" unless rc == SQL_SUCCESS
+
+      retval = {}
+      cols.each_with_index do |c, i|
+        rc, content = SQLGetData(@handle, i + 1, c[1], c[2] + 1)   #yun added 1 to c[2]
+        retval[c[0]] = adjust_content(content)
+      end
+      retval
+    end
+
+    def get_col_desc
+      rc, nr_cols = SQLNumResultCols(@handle)
+      cols = (1..nr_cols).collect do |c|
+        rc, name, bl, type, col_sz = SQLDescribeCol(@handle, c, 1024)
+        [name.downcase, type, col_sz]
+      end
+    end
+
+    def adjust_content(c)
+      case c.class.to_s
+      when 'DB2CLI::NullClass'
+        return nil
+      when 'DB2CLI::Time'
+        "%02d:%02d:%02d" % [c.hour, c.minute, c.second]
+      when 'DB2CLI::Date'
+        "%04d-%02d-%02d" % [c.year, c.month, c.day]
+      when 'DB2CLI::Timestamp'
+        "%04d-%02d-%02d %02d:%02d:%02d" % [c.year, c.month, c.day, c.hour, c.minute, c.second]
+      else
+        return c
+      end
+    end
+  end
+
+  class Parameter
+    attr_reader :type, :size, :decimalDigits
+    def initialize(type, size, decimalDigits)
+      @type, @size, @decimalDigits = type, size, decimalDigits
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/vendor/simple.rb

@@ -0,0 +1,693 @@
+# :title: Transaction::Simple -- Active Object Transaction Support for Ruby
+# :main: Transaction::Simple
+#
+# == Licence
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+#--
+# Transaction::Simple
+#   Simple object transaction support for Ruby
+#   Version 1.3.0
+#
+# Copyright (c) 2003 - 2005 Austin Ziegler
+#
+# $Id: simple.rb,v 1.5 2005/05/05 16:16:49 austin Exp $
+#++
+  # The "Transaction" namespace can be used for additional transaction
+  # support objects and modules.
+module Transaction
+    # A standard exception for transaction errors.
+  class TransactionError < StandardError; end
+    # The TransactionAborted exception is used to indicate when a
+    # transaction has been aborted in the block form.
+  class TransactionAborted < Exception; end
+    # The TransactionCommitted exception is used to indicate when a
+    # transaction has been committed in the block form.
+  class TransactionCommitted < Exception; end
+
+  te = "Transaction Error: %s"
+
+  Messages = {
+    :bad_debug_object =>
+      te % "the transaction debug object must respond to #<<.",
+    :unique_names =>
+      te % "named transactions must be unique.",
+    :no_transaction_open =>
+      te % "no transaction open.",
+    :cannot_rewind_no_transaction =>
+      te % "cannot rewind; there is no current transaction.",
+    :cannot_rewind_named_transaction =>
+      te % "cannot rewind to transaction %s because it does not exist.",
+    :cannot_rewind_transaction_before_block =>
+      te % "cannot rewind a transaction started before the execution block.",
+    :cannot_abort_no_transaction =>
+      te % "cannot abort; there is no current transaction.",
+    :cannot_abort_transaction_before_block =>
+      te % "cannot abort a transaction started before the execution block.",
+    :cannot_abort_named_transaction =>
+      te % "cannot abort nonexistant transaction %s.",
+    :cannot_commit_no_transaction =>
+      te % "cannot commit; there is no current transaction.",
+    :cannot_commit_transaction_before_block =>
+      te % "cannot commit a transaction started before the execution block.",
+    :cannot_commit_named_transaction =>
+      te % "cannot commit nonexistant transaction %s.",
+    :cannot_start_empty_block_transaction =>
+      te % "cannot start a block transaction with no objects.",
+    :cannot_obtain_transaction_lock =>
+      te % "cannot obtain transaction lock for #%s.",
+  }
+
+    # = Transaction::Simple for Ruby
+    # Simple object transaction support for Ruby
+    #
+    # == Introduction
+    # Transaction::Simple provides a generic way to add active transaction
+    # support to objects. The transaction methods added by this module will
+    # work with most objects, excluding those that cannot be
+    # <i>Marshal</i>ed (bindings, procedure objects, IO instances, or
+    # singleton objects).
+    #
+    # The transactions supported by Transaction::Simple are not backed
+    # transactions; they are not associated with any sort of data store.
+    # They are "live" transactions occurring in memory and in the object
+    # itself. This is to allow "test" changes to be made to an object
+    # before making the changes permanent.
+    #
+    # Transaction::Simple can handle an "infinite" number of transaction
+    # levels (limited only by memory). If I open two transactions, commit
+    # the second, but abort the first, the object will revert to the
+    # original version.
+    # 
+    # Transaction::Simple supports "named" transactions, so that multiple
+    # levels of transactions can be committed, aborted, or rewound by
+    # referring to the appropriate name of the transaction. Names may be any
+    # object *except* +nil+. As with Hash keys, String names will be
+    # duplicated and frozen before using.
+    #
+    # Copyright::   Copyright © 2003 - 2005 by Austin Ziegler
+    # Version::     1.3.0
+    # Licence::     MIT-Style
+    #
+    # Thanks to David Black for help with the initial concept that led to
+    # this library.
+    #
+    # == Usage
+    #   include 'transaction/simple'
+    #
+    #   v = "Hello, you."               # -> "Hello, you."
+    #   v.extend(Transaction::Simple)   # -> "Hello, you."
+    #
+    #   v.start_transaction             # -> ... (a Marshal string)
+    #   v.transaction_open?             # -> true
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #
+    #   v.rewind_transaction            # -> "Hello, you."
+    #   v.transaction_open?             # -> true
+    #
+    #   v.gsub!(/you/, "HAL")           # -> "Hello, HAL."
+    #   v.abort_transaction             # -> "Hello, you."
+    #   v.transaction_open?             # -> false
+    #
+    #   v.start_transaction             # -> ... (a Marshal string)
+    #   v.start_transaction             # -> ... (a Marshal string)
+    #
+    #   v.transaction_open?             # -> true
+    #   v.gsub!(/you/, "HAL")           # -> "Hello, HAL."
+    #
+    #   v.commit_transaction            # -> "Hello, HAL."
+    #   v.transaction_open?             # -> true
+    #   v.abort_transaction             # -> "Hello, you."
+    #   v.transaction_open?             # -> false
+    #
+    # == Named Transaction Usage
+    #   v = "Hello, you."               # -> "Hello, you."
+    #   v.extend(Transaction::Simple)   # -> "Hello, you."
+    #   
+    #   v.start_transaction(:first)     # -> ... (a Marshal string)
+    #   v.transaction_open?             # -> true
+    #   v.transaction_open?(:first)     # -> true
+    #   v.transaction_open?(:second)    # -> false
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   v.rewind_transaction(:first)    # -> "Hello, you."
+    #   v.transaction_open?             # -> true
+    #   v.transaction_open?(:first)     # -> true
+    #   v.transaction_open?(:second)    # -> false
+    #   
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   v.transaction_name              # -> :second
+    #   v.abort_transaction(:first)     # -> "Hello, you."
+    #   v.transaction_open?             # -> false
+    #   
+    #   v.start_transaction(:first)     # -> ... (a Marshal string)
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   
+    #   v.commit_transaction(:first)    # -> "Hello, HAL."
+    #   v.transaction_open?             # -> false
+    #
+    # == Block Usage
+    #   v = "Hello, you."               # -> "Hello, you."
+    #   Transaction::Simple.start(v) do |tv|
+    #       # v has been extended with Transaction::Simple and an unnamed
+    #       # transaction has been started.
+    #     tv.transaction_open?          # -> true
+    #     tv.gsub!(/you/, "world")      # -> "Hello, world."
+    #
+    #     tv.rewind_transaction         # -> "Hello, you."
+    #     tv.transaction_open?          # -> true
+    #
+    #     tv.gsub!(/you/, "HAL")        # -> "Hello, HAL."
+    #       # The following breaks out of the transaction block after
+    #       # aborting the transaction.
+    #     tv.abort_transaction          # -> "Hello, you."
+    #   end
+    #     # v still has Transaction::Simple applied from here on out.
+    #   v.transaction_open?             # -> false
+    #
+    #   Transaction::Simple.start(v) do |tv|
+    #     tv.start_transaction          # -> ... (a Marshal string)
+    #
+    #     tv.transaction_open?          # -> true
+    #     tv.gsub!(/you/, "HAL")        # -> "Hello, HAL."
+    #
+    #       # If #commit_transaction were called without having started a
+    #       # second transaction, then it would break out of the transaction
+    #       # block after committing the transaction.
+    #     tv.commit_transaction         # -> "Hello, HAL."
+    #     tv.transaction_open?          # -> true
+    #     tv.abort_transaction          # -> "Hello, you."
+    #   end
+    #   v.transaction_open?             # -> false
+    #
+    # == Named Transaction Usage
+    #   v = "Hello, you."               # -> "Hello, you."
+    #   v.extend(Transaction::Simple)   # -> "Hello, you."
+    #   
+    #   v.start_transaction(:first)     # -> ... (a Marshal string)
+    #   v.transaction_open?             # -> true
+    #   v.transaction_open?(:first)     # -> true
+    #   v.transaction_open?(:second)    # -> false
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   v.rewind_transaction(:first)    # -> "Hello, you."
+    #   v.transaction_open?             # -> true
+    #   v.transaction_open?(:first)     # -> true
+    #   v.transaction_open?(:second)    # -> false
+    #   
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   v.transaction_name              # -> :second
+    #   v.abort_transaction(:first)     # -> "Hello, you."
+    #   v.transaction_open?             # -> false
+    #   
+    #   v.start_transaction(:first)     # -> ... (a Marshal string)
+    #   v.gsub!(/you/, "world")         # -> "Hello, world."
+    #   v.start_transaction(:second)    # -> ... (a Marshal string)
+    #   v.gsub!(/world/, "HAL")         # -> "Hello, HAL."
+    #   
+    #   v.commit_transaction(:first)    # -> "Hello, HAL."
+    #   v.transaction_open?             # -> false
+    #
+    # == Thread Safety
+    # Threadsafe version of Transaction::Simple and
+    # Transaction::Simple::Group exist; these are loaded from
+    # 'transaction/simple/threadsafe' and
+    # 'transaction/simple/threadsafe/group', respectively, and are
+    # represented in Ruby code as Transaction::Simple::ThreadSafe and
+    # Transaction::Simple::ThreadSafe::Group, respectively.
+    #
+    # == Contraindications
+    # While Transaction::Simple is very useful, it has some severe
+    # limitations that must be understood. Transaction::Simple:
+    #
+    # * uses Marshal. Thus, any object which cannot be <i>Marshal</i>ed
+    #   cannot use Transaction::Simple. In my experience, this affects
+    #   singleton objects more often than any other object. It may be that
+    #   Ruby 2.0 will solve this problem.
+    # * does not manage resources. Resources external to the object and its
+    #   instance variables are not managed at all. However, all instance
+    #   variables and objects "belonging" to those instance variables are
+    #   managed. If there are object reference counts to be handled,
+    #   Transaction::Simple will probably cause problems.
+    # * is not inherently thread-safe. In the ACID ("atomic, consistent,
+    #   isolated, durable") test, Transaction::Simple provides CD, but it is
+    #   up to the user of Transaction::Simple to provide isolation and
+    #   atomicity. Transactions should be considered "critical sections" in
+    #   multi-threaded applications. If thread safety and atomicity is
+    #   absolutely required, use Transaction::Simple::ThreadSafe, which uses
+    #   a Mutex object to synchronize the accesses on the object during the
+    #   transaction operations.
+    # * does not necessarily maintain Object#__id__ values on rewind or
+    #   abort. This may change for future versions that will be Ruby 1.8 or
+    #   better *only*. Certain objects that support #replace will maintain
+    #   Object#__id__.
+    # * Can be a memory hog if you use many levels of transactions on many
+    #   objects.
+    #
+  module Simple
+    TRANSACTION_SIMPLE_VERSION = '1.3.0'
+
+      # Sets the Transaction::Simple debug object. It must respond to #<<.
+      # Sets the transaction debug object. Debugging will be performed
+      # automatically if there's a debug object. The generic transaction
+      # error class.
+    def self.debug_io=(io)
+      if io.nil?
+        @tdi        = nil
+        @debugging  = false
+      else
+        unless io.respond_to?(:<<)
+          raise TransactionError, Messages[:bad_debug_object]
+        end
+        @tdi = io
+        @debugging = true
+      end
+    end
+
+      # Returns +true+ if we are debugging.
+    def self.debugging?
+      @debugging
+    end
+
+      # Returns the Transaction::Simple debug object. It must respond to
+      # #<<.
+    def self.debug_io
+      @tdi ||= ""
+      @tdi
+    end
+
+      # If +name+ is +nil+ (default), then returns +true+ if there is
+      # currently a transaction open.
+      #
+      # If +name+ is specified, then returns +true+ if there is currently a
+      # transaction that responds to +name+ open.
+    def transaction_open?(name = nil)
+      if name.nil?
+        if Transaction::Simple.debugging?
+          Transaction::Simple.debug_io << "Transaction " <<
+            "[#{(@__transaction_checkpoint__.nil?) ? 'closed' : 'open'}]\n"
+        end
+        return (not @__transaction_checkpoint__.nil?)
+      else
+        if Transaction::Simple.debugging?
+          Transaction::Simple.debug_io << "Transaction(#{name.inspect}) " <<
+            "[#{(@__transaction_checkpoint__.nil?) ? 'closed' : 'open'}]\n"
+        end
+        return ((not @__transaction_checkpoint__.nil?) and @__transaction_names__.include?(name))
+      end
+    end
+
+      # Returns the current name of the transaction. Transactions not
+      # explicitly named are named +nil+.
+    def transaction_name
+      if @__transaction_checkpoint__.nil?
+        raise TransactionError, Messages[:no_transaction_open]
+      end
+      if Transaction::Simple.debugging?
+        Transaction::Simple.debug_io << "#{'|' * @__transaction_level__} " <<
+          "Transaction Name: #{@__transaction_names__[-1].inspect}\n"
+      end
+      if @__transaction_names__[-1].kind_of?(String)
+        @__transaction_names__[-1].dup
+      else
+        @__transaction_names__[-1]
+      end
+    end
+
+      # Starts a transaction. Stores the current object state. If a
+      # transaction name is specified, the transaction will be named.
+      # Transaction names must be unique. Transaction names of +nil+ will be
+      # treated as unnamed transactions.
+    def start_transaction(name = nil)
+      @__transaction_level__ ||= 0
+      @__transaction_names__ ||= []
+
+      if name.nil?
+        @__transaction_names__ << nil
+        ss = "" if Transaction::Simple.debugging?
+      else
+        if @__transaction_names__.include?(name)
+          raise TransactionError, Messages[:unique_names]
+        end
+        name = name.dup.freeze if name.kind_of?(String)
+        @__transaction_names__ << name
+        ss = "(#{name.inspect})" if Transaction::Simple.debugging?
+      end
+
+      @__transaction_level__ += 1
+
+      if Transaction::Simple.debugging?
+        Transaction::Simple.debug_io << "#{'>' * @__transaction_level__} " <<
+          "Start Transaction#{ss}\n"
+      end
+
+      @__transaction_checkpoint__ = Marshal.dump(self)
+    end
+
+      # Rewinds the transaction. If +name+ is specified, then the
+      # intervening transactions will be aborted and the named transaction
+      # will be rewound. Otherwise, only the current transaction is rewound.
+    def rewind_transaction(name = nil)
+      if @__transaction_checkpoint__.nil?
+        raise TransactionError, Messages[:cannot_rewind_no_transaction]
+      end
+
+        # Check to see if we are trying to rewind a transaction that is
+        # outside of the current transaction block.
+      if @__transaction_block__ and name
+        nix = @__transaction_names__.index(name) + 1
+        if nix < @__transaction_block__
+          raise TransactionError, Messages[:cannot_rewind_transaction_before_block]
+        end
+      end
+
+      if name.nil?
+        __rewind_this_transaction
+        ss = "" if Transaction::Simple.debugging?
+      else
+        unless @__transaction_names__.include?(name)
+          raise TransactionError, Messages[:cannot_rewind_named_transaction] % name.inspect
+        end
+        ss = "(#{name})" if Transaction::Simple.debugging?
+
+        while @__transaction_names__[-1] != name
+          @__transaction_checkpoint__ = __rewind_this_transaction
+          if Transaction::Simple.debugging?
+            Transaction::Simple.debug_io << "#{'|' * @__transaction_level__} " <<
+              "Rewind Transaction#{ss}\n"
+          end
+          @__transaction_level__ -= 1
+          @__transaction_names__.pop
+        end
+        __rewind_this_transaction
+      end
+      if Transaction::Simple.debugging?
+        Transaction::Simple.debug_io << "#{'|' * @__transaction_level__} " <<
+          "Rewind Transaction#{ss}\n"
+      end
+      self
+    end
+
+      # Aborts the transaction. Resets the object state to what it was
+      # before the transaction was started and closes the transaction. If
+      # +name+ is specified, then the intervening transactions and the named
+      # transaction will be aborted. Otherwise, only the current transaction
+      # is aborted.
+      #
+      # If the current or named transaction has been started by a block
+      # (Transaction::Simple.start), then the execution of the block will be
+      # halted with +break+ +self+.
+    def abort_transaction(name = nil)
+      if @__transaction_checkpoint__.nil?
+        raise TransactionError, Messages[:cannot_abort_no_transaction]
+      end
+
+        # Check to see if we are trying to abort a transaction that is
+        # outside of the current transaction block. Otherwise, raise
+        # TransactionAborted if they are the same.
+      if @__transaction_block__ and name
+        nix = @__transaction_names__.index(name) + 1
+        if nix < @__transaction_block__
+          raise TransactionError, Messages[:cannot_abort_transaction_before_block]
+        end
+
+        raise TransactionAborted if @__transaction_block__ == nix
+      end
+
+      raise TransactionAborted if @__transaction_block__ == @__transaction_level__
+
+      if name.nil?
+        __abort_transaction(name)
+      else
+        unless @__transaction_names__.include?(name)
+          raise TransactionError, Messages[:cannot_abort_named_transaction] % name.inspect
+        end
+        __abort_transaction(name) while @__transaction_names__.include?(name)
+      end
+      self
+    end
+
+      # If +name+ is +nil+ (default), the current transaction level is
+      # closed out and the changes are committed.
+      #
+      # If +name+ is specified and +name+ is in the list of named
+      # transactions, then all transactions are closed and committed until
+      # the named transaction is reached.
+    def commit_transaction(name = nil)
+      if @__transaction_checkpoint__.nil?
+        raise TransactionError, Messages[:cannot_commit_no_transaction]
+      end
+      @__transaction_block__ ||= nil
+
+        # Check to see if we are trying to commit a transaction that is
+        # outside of the current transaction block. Otherwise, raise
+        # TransactionCommitted if they are the same.
+      if @__transaction_block__ and name
+        nix = @__transaction_names__.index(name) + 1
+        if nix < @__transaction_block__
+          raise TransactionError, Messages[:cannot_commit_transaction_before_block]
+        end
+
+        raise TransactionCommitted if @__transaction_block__ == nix
+      end
+
+      raise TransactionCommitted if @__transaction_block__ == @__transaction_level__
+
+      if name.nil?
+        ss = "" if Transaction::Simple.debugging?
+        __commit_transaction
+        if Transaction::Simple.debugging?
+          Transaction::Simple.debug_io << "#{'<' * @__transaction_level__} " <<
+            "Commit Transaction#{ss}\n"
+        end
+      else
+        unless @__transaction_names__.include?(name)
+          raise TransactionError, Messages[:cannot_commit_named_transaction] % name.inspect
+        end
+        ss = "(#{name})" if Transaction::Simple.debugging?
+
+        while @__transaction_names__[-1] != name
+          if Transaction::Simple.debugging?
+            Transaction::Simple.debug_io << "#{'<' * @__transaction_level__} " <<
+              "Commit Transaction#{ss}\n"
+          end
+          __commit_transaction
+        end
+        if Transaction::Simple.debugging?
+          Transaction::Simple.debug_io << "#{'<' * @__transaction_level__} " <<
+            "Commit Transaction#{ss}\n"
+        end
+        __commit_transaction
+      end
+
+      self
+    end
+
+      # Alternative method for calling the transaction methods. An optional
+      # name can be specified for named transaction support.
+      #
+      # #transaction(:start)::  #start_transaction
+      # #transaction(:rewind):: #rewind_transaction
+      # #transaction(:abort)::  #abort_transaction
+      # #transaction(:commit):: #commit_transaction
+      # #transaction(:name)::   #transaction_name
+      # #transaction::          #transaction_open?
+    def transaction(action = nil, name = nil)
+      case action
+      when :start
+        start_transaction(name)
+      when :rewind
+        rewind_transaction(name)
+      when :abort
+        abort_transaction(name)
+      when :commit
+        commit_transaction(name)
+      when :name
+        transaction_name
+      when nil
+        transaction_open?(name)
+      end
+    end
+
+      # Allows specific variables to be excluded from transaction support.
+      # Must be done after extending the object but before starting the
+      # first transaction on the object.
+      #
+      #   vv.transaction_exclusions << "@io"
+    def transaction_exclusions
+      @transaction_exclusions ||= []
+    end
+
+    class << self
+      def __common_start(name, vars, &block)
+        if vars.empty?
+          raise TransactionError, Messages[:cannot_start_empty_block_transaction]
+        end
+
+        if block
+          begin
+            vlevel = {}
+
+            vars.each do |vv|
+              vv.extend(Transaction::Simple)
+              vv.start_transaction(name)
+              vlevel[vv.__id__] = vv.instance_variable_get(:@__transaction_level__)
+              vv.instance_variable_set(:@__transaction_block__, vlevel[vv.__id__])
+            end
+
+            yield(*vars)
+          rescue TransactionAborted
+            vars.each do |vv|
+              if name.nil? and vv.transaction_open?
+                loop do
+                  tlevel = vv.instance_variable_get(:@__transaction_level__) || -1
+                  vv.instance_variable_set(:@__transaction_block__, -1)
+                  break if tlevel < vlevel[vv.__id__]
+                  vv.abort_transaction if vv.transaction_open?
+                end
+              elsif vv.transaction_open?(name)
+                vv.instance_variable_set(:@__transaction_block__, -1)
+                vv.abort_transaction(name)
+              end
+            end
+          rescue TransactionCommitted
+            nil
+          ensure
+            vars.each do |vv|
+              if name.nil? and vv.transaction_open?
+                loop do
+                  tlevel = vv.instance_variable_get(:@__transaction_level__) || -1
+                  break if tlevel < vlevel[vv.__id__]
+                  vv.instance_variable_set(:@__transaction_block__, -1)
+                  vv.commit_transaction if vv.transaction_open?
+                end
+              elsif vv.transaction_open?(name)
+                vv.instance_variable_set(:@__transaction_block__, -1)
+                vv.commit_transaction(name)
+              end
+            end
+          end
+        else
+          vars.each do |vv|
+            vv.extend(Transaction::Simple)
+            vv.start_transaction(name)
+          end
+        end
+      end
+      private :__common_start
+
+      def start_named(name, *vars, &block)
+        __common_start(name, vars, &block)
+      end
+
+      def start(*vars, &block)
+        __common_start(nil, vars, &block)
+      end
+    end
+
+    def __abort_transaction(name = nil) #:nodoc:
+      @__transaction_checkpoint__ = __rewind_this_transaction
+
+      if name.nil?
+        ss = "" if Transaction::Simple.debugging?
+      else
+        ss = "(#{name.inspect})" if Transaction::Simple.debugging?
+      end
+
+      if Transaction::Simple.debugging?
+        Transaction::Simple.debug_io << "#{'<' * @__transaction_level__} " <<
+          "Abort Transaction#{ss}\n"
+      end
+      @__transaction_level__ -= 1
+      @__transaction_names__.pop
+      if @__transaction_level__ < 1
+        @__transaction_level__ = 0
+        @__transaction_names__ = []
+      end
+    end
+
+    TRANSACTION_CHECKPOINT  = "@__transaction_checkpoint__" #:nodoc:
+    SKIP_TRANSACTION_VARS   = [TRANSACTION_CHECKPOINT, "@__transaction_level__"] #:nodoc:
+
+    def __rewind_this_transaction #:nodoc:
+      rr = Marshal.restore(@__transaction_checkpoint__)
+
+      begin
+        self.replace(rr) if respond_to?(:replace)
+      rescue
+        nil
+      end
+
+      rr.instance_variables.each do |vv|
+        next if SKIP_TRANSACTION_VARS.include?(vv)
+        next if self.transaction_exclusions.include?(vv)
+        if respond_to?(:instance_variable_get)
+          instance_variable_set(vv, rr.instance_variable_get(vv))
+        else
+          instance_eval(%q|#{vv} = rr.instance_eval("#{vv}")|)
+        end
+      end
+
+      new_ivar = instance_variables - rr.instance_variables - SKIP_TRANSACTION_VARS
+      new_ivar.each do |vv|
+        if respond_to?(:instance_variable_set)
+          instance_variable_set(vv, nil)
+        else
+          instance_eval(%q|#{vv} = nil|)
+        end
+      end
+
+      if respond_to?(:instance_variable_get)
+        rr.instance_variable_get(TRANSACTION_CHECKPOINT)
+      else
+        rr.instance_eval(TRANSACTION_CHECKPOINT)
+      end
+    end
+
+    def __commit_transaction #:nodoc:
+      if respond_to?(:instance_variable_get)
+        @__transaction_checkpoint__ = Marshal.restore(@__transaction_checkpoint__).instance_variable_get(TRANSACTION_CHECKPOINT)
+      else
+        @__transaction_checkpoint__ = Marshal.restore(@__transaction_checkpoint__).instance_eval(TRANSACTION_CHECKPOINT)
+      end
+
+      @__transaction_level__ -= 1
+      @__transaction_names__.pop
+
+      if @__transaction_level__ < 1
+        @__transaction_level__ = 0
+        @__transaction_names__ = []
+      end
+    end
+
+    private :__abort_transaction
+    private :__rewind_this_transaction
+    private :__commit_transaction
+  end
+end

vendor/rails/activerecord/lib/active_record/version.rb

@@ -0,0 +1,9 @@
+module ActiveRecord
+  module VERSION #:nodoc:
+    MAJOR = 1
+    MINOR = 14
+    TINY  = 4
+
+    STRING = [MAJOR, MINOR, TINY].join('.')
+  end
+end

vendor/rails/activerecord/lib/active_record/wrappers/yaml_wrapper.rb

@@ -0,0 +1,15 @@
+require 'yaml'
+
+module ActiveRecord
+  module Wrappings #:nodoc:
+    class YamlWrapper < AbstractWrapper #:nodoc:
+      def wrap(attribute)   attribute.to_yaml end
+      def unwrap(attribute) YAML::load(attribute) end
+    end
+
+    module ClassMethods #:nodoc:
+      # Wraps the attribute in Yaml encoding
+      def wrap_in_yaml(*attributes) wrap_with(YamlWrapper, attributes) end
+    end
+  end
+end

vendor/rails/activerecord/lib/active_record/wrappings.rb

@@ -0,0 +1,59 @@
+module ActiveRecord
+  # A plugin framework for wrapping attribute values before they go in and unwrapping them after they go out of the database.
+  # This was intended primarily for YAML wrapping of arrays and hashes, but this behavior is now native in the Base class.
+  # So for now this framework is laying dormant until a need pops up.
+  module Wrappings #:nodoc:
+    module ClassMethods #:nodoc:
+      def wrap_with(wrapper, *attributes)
+        [ attributes ].flat.each { |attribute| wrapper.wrap(attribute) }
+      end
+    end
+
+    def self.append_features(base)
+      super
+      base.extend(ClassMethods)
+    end
+
+    class AbstractWrapper #:nodoc:
+      def self.wrap(attribute, record_binding) #:nodoc:
+        %w( before_save after_save after_initialize ).each do |callback|
+          eval "#{callback} #{name}.new('#{attribute}')", record_binding
+        end
+      end
+
+      def initialize(attribute) #:nodoc:
+        @attribute = attribute
+      end
+
+      def save_wrapped_attribute(record) #:nodoc:
+        if record.attribute_present?(@attribute)
+          record.send(
+            "write_attribute", 
+            @attribute, 
+            wrap(record.send("read_attribute", @attribute))
+          )
+        end
+      end
+
+      def load_wrapped_attribute(record) #:nodoc:
+        if record.attribute_present?(@attribute)
+          record.send(
+            "write_attribute", 
+            @attribute, 
+            unwrap(record.send("read_attribute", @attribute))
+          )
+        end
+      end
+  
+      alias_method :before_save, :save_wrapped_attribute #:nodoc:
+      alias_method :after_save, :load_wrapped_attribute #:nodoc:
+      alias_method :after_initialize, :after_save #:nodoc:
+
+      # Overwrite to implement the logic that'll take the regular attribute and wrap it.
+      def wrap(attribute) end
+  
+      # Overwrite to implement the logic that'll take the wrapped attribute and unwrap it.
+      def unwrap(attribute) end
+    end
+  end
+end

vendor/rails/activerecord/test/aaa_create_tables_test.rb

@@ -0,0 +1,55 @@
+# The filename begins with "aaa" to ensure this is the first test.
+require 'abstract_unit'
+
+class AAACreateTablesTest < Test::Unit::TestCase
+  self.use_transactional_fixtures = false
+
+  def setup
+    @base_path = "#{File.dirname(__FILE__)}/fixtures/db_definitions"
+  end
+
+  def test_drop_and_create_main_tables
+    recreate ActiveRecord::Base
+    assert true
+  end
+
+  def test_load_schema
+    eval(File.read("#{File.dirname(__FILE__)}/fixtures/db_definitions/schema.rb"))
+    assert true
+  end
+  
+  def test_drop_and_create_courses_table
+    recreate Course, '2'
+    assert true
+  end
+
+  private
+    def recreate(base, suffix = nil)
+      connection = base.connection
+      adapter_name = connection.adapter_name.downcase + suffix.to_s
+      execute_sql_file "#{@base_path}/#{adapter_name}.drop.sql", connection
+      execute_sql_file "#{@base_path}/#{adapter_name}.sql", connection
+    end
+
+    def execute_sql_file(path, connection)
+      # OpenBase has a different format for sql files
+      if current_adapter?(:OpenBaseAdapter) then
+          File.read(path).split("go").each_with_index do |sql, i|
+            begin
+              # OpenBase does not support comments embedded in sql
+              connection.execute(sql,"SQL statement ##{i}") unless sql.blank?
+            rescue ActiveRecord::StatementInvalid
+              #$stderr.puts "warning: #{$!}"
+            end
+          end
+      else
+        File.read(path).split(';').each_with_index do |sql, i|
+          begin
+            connection.execute("\n\n-- statement ##{i}\n#{sql}\n") unless sql.blank?
+          rescue ActiveRecord::StatementInvalid
+            #$stderr.puts "warning: #{$!}"
+          end
+        end
+      end
+    end
+end

vendor/rails/activerecord/test/abstract_unit.rb

@@ -0,0 +1,67 @@
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+$:.unshift(File.dirname(__FILE__) + '/../../activesupport/lib')
+
+require 'test/unit'
+require 'active_record'
+require 'active_record/fixtures'
+require 'active_support/binding_of_caller'
+require 'active_support/breakpoint'
+require 'connection'
+
+QUOTED_TYPE = ActiveRecord::Base.connection.quote_column_name('type') unless Object.const_defined?(:QUOTED_TYPE)
+
+class Test::Unit::TestCase #:nodoc:
+  self.fixture_path = File.dirname(__FILE__) + "/fixtures/"
+  self.use_instantiated_fixtures = false
+  self.use_transactional_fixtures = (ENV['AR_NO_TX_FIXTURES'] != "yes")
+
+  def create_fixtures(*table_names, &block)
+    Fixtures.create_fixtures(File.dirname(__FILE__) + "/fixtures/", table_names, {}, &block)
+  end
+  
+  def assert_date_from_db(expected, actual, message = nil)
+    # SQL Server doesn't have a separate column type just for dates, 
+    # so the time is in the string and incorrectly formatted
+    if current_adapter?(:SQLServerAdapter)
+      assert_equal expected.strftime("%Y/%m/%d 00:00:00"), actual.strftime("%Y/%m/%d 00:00:00")
+    elsif current_adapter?(:SybaseAdapter)
+      assert_equal expected.to_s, actual.to_date.to_s, message
+    else
+      assert_equal expected.to_s, actual.to_s, message
+    end
+  end
+
+  def assert_queries(num = 1)
+    ActiveRecord::Base.connection.class.class_eval do
+      self.query_count = 0
+      alias_method :execute, :execute_with_query_counting
+    end
+    yield
+  ensure
+    ActiveRecord::Base.connection.class.class_eval do
+      alias_method :execute, :execute_without_query_counting
+    end
+    assert_equal num, ActiveRecord::Base.connection.query_count, "#{ActiveRecord::Base.connection.query_count} instead of #{num} queries were executed."
+  end
+
+  def assert_no_queries(&block)
+    assert_queries(0, &block)
+  end
+end
+
+def current_adapter?(type)
+  ActiveRecord::ConnectionAdapters.const_defined?(type) &&
+    ActiveRecord::Base.connection.instance_of?(ActiveRecord::ConnectionAdapters.const_get(type))
+end
+
+ActiveRecord::Base.connection.class.class_eval do
+  cattr_accessor :query_count
+  alias_method :execute_without_query_counting, :execute
+  def execute_with_query_counting(sql, name = nil)
+    self.query_count += 1
+    execute_without_query_counting(sql, name)
+  end
+end
+
+#ActiveRecord::Base.logger = Logger.new(STDOUT)
+#ActiveRecord::Base.colorize_logging = false

vendor/rails/activerecord/test/active_schema_mysql.rb

@@ -0,0 +1,31 @@
+require 'abstract_unit'
+
+class ActiveSchemaTest < Test::Unit::TestCase
+  def setup
+    ActiveRecord::ConnectionAdapters::MysqlAdapter.class_eval do
+      alias_method :real_execute, :execute
+      def execute(sql, name = nil) return sql end
+    end    
+  end
+  
+  def teardown
+    ActiveRecord::ConnectionAdapters::MysqlAdapter.send(:alias_method, :execute, :real_execute)
+  end
+
+  def test_drop_table
+    assert_equal "DROP TABLE people", drop_table(:people)
+  end
+  
+  def test_add_column
+    assert_equal "ALTER TABLE people ADD last_name varchar(255)", add_column(:people, :last_name, :string)
+  end
+  
+  def test_add_column_with_limit
+    assert_equal "ALTER TABLE people ADD key varchar(32)", add_column(:people, :key, :string, :limit => 32)
+  end
+  
+  private
+    def method_missing(method_symbol, *arguments)
+      ActiveRecord::Base.connection.send(method_symbol, *arguments)
+    end
+end

vendor/rails/activerecord/test/adapter_test.rb

@@ -0,0 +1,85 @@
+require 'abstract_unit'
+
+class AdapterTest < Test::Unit::TestCase
+  def setup
+    @connection = ActiveRecord::Base.connection
+  end
+
+  def test_tables
+    if @connection.respond_to?(:tables)
+      tables = @connection.tables
+      assert tables.include?("accounts")
+      assert tables.include?("authors")
+      assert tables.include?("tasks")
+      assert tables.include?("topics")
+    else
+      warn "#{@connection.class} does not respond to #tables"
+    end
+  end
+
+  def test_indexes
+    idx_name = "accounts_idx"
+      
+    if @connection.respond_to?(:indexes)
+      indexes = @connection.indexes("accounts")
+      assert indexes.empty?
+
+      @connection.add_index :accounts, :firm_id, :name => idx_name
+      indexes = @connection.indexes("accounts")
+      assert_equal "accounts", indexes.first.table
+      # OpenBase does not have the concept of a named index
+      # Indexes are merely properties of columns.
+      assert_equal idx_name, indexes.first.name unless current_adapter?(:OpenBaseAdapter)
+      assert !indexes.first.unique
+      assert_equal ["firm_id"], indexes.first.columns
+    else
+      warn "#{@connection.class} does not respond to #indexes"
+    end
+
+  ensure
+    @connection.remove_index(:accounts, :name => idx_name) rescue nil
+  end
+  
+  def test_current_database
+    if @connection.respond_to?(:current_database)
+      assert_equal ENV['ARUNIT_DB_NAME'] || "activerecord_unittest", @connection.current_database
+    end
+  end
+
+  def test_table_alias
+    def @connection.test_table_alias_length() 10; end
+    class << @connection
+      alias_method :old_table_alias_length, :table_alias_length
+      alias_method :table_alias_length,     :test_table_alias_length
+    end
+      
+    assert_equal 'posts',      @connection.table_alias_for('posts')
+    assert_equal 'posts_comm', @connection.table_alias_for('posts_comments')
+    assert_equal 'dbo_posts',  @connection.table_alias_for('dbo.posts')
+    
+    class << @connection
+      alias_method :table_alias_length, :old_table_alias_length
+    end
+  end
+
+  # test resetting sequences in odd tables in postgreSQL
+  if ActiveRecord::Base.connection.respond_to?(:reset_pk_sequence!)
+    require 'fixtures/movie'
+    require 'fixtures/subscriber'
+    def test_reset_empty_table_with_custom_pk
+      Movie.delete_all
+      Movie.connection.reset_pk_sequence! 'movies'
+      assert_equal 1, Movie.create(:name => 'fight club').id
+    end
+
+    def test_reset_table_with_non_integer_pk
+      Subscriber.delete_all
+      Subscriber.connection.reset_pk_sequence! 'subscribers'
+
+      sub = Subscriber.new(:name => 'robert drake')
+      sub.id = 'bob drake'
+      assert_nothing_raised { sub.save! }
+    end
+  end
+
+end

vendor/rails/activerecord/test/aggregations_test.rb

@@ -0,0 +1,66 @@
+require 'abstract_unit'
+require 'fixtures/customer'
+
+class AggregationsTest < Test::Unit::TestCase
+  fixtures :customers
+
+  def test_find_single_value_object
+    assert_equal 50, customers(:david).balance.amount
+    assert_kind_of Money, customers(:david).balance
+    assert_equal 300, customers(:david).balance.exchange_to("DKK").amount
+  end
+  
+  def test_find_multiple_value_object
+    assert_equal customers(:david).address_street, customers(:david).address.street
+    assert(
+      customers(:david).address.close_to?(Address.new("Different Street", customers(:david).address_city, customers(:david).address_country))
+    )
+  end
+  
+  def test_change_single_value_object
+    customers(:david).balance = Money.new(100)
+    customers(:david).save
+    assert_equal 100, Customer.find(1).balance.amount
+  end
+  
+  def test_immutable_value_objects
+    customers(:david).balance = Money.new(100)
+    assert_raises(TypeError) {  customers(:david).balance.instance_eval { @amount = 20 } }
+  end  
+  
+  def test_inferred_mapping
+    assert_equal "35.544623640962634", customers(:david).gps_location.latitude
+    assert_equal "-105.9309951055148", customers(:david).gps_location.longitude
+    
+    customers(:david).gps_location = GpsLocation.new("39x-110")
+
+    assert_equal "39", customers(:david).gps_location.latitude
+    assert_equal "-110", customers(:david).gps_location.longitude
+    
+    customers(:david).save
+    
+    customers(:david).reload
+
+    assert_equal "39", customers(:david).gps_location.latitude
+    assert_equal "-110", customers(:david).gps_location.longitude
+  end
+
+  def test_reloaded_instance_refreshes_aggregations
+    assert_equal "35.544623640962634", customers(:david).gps_location.latitude
+    assert_equal "-105.9309951055148", customers(:david).gps_location.longitude
+
+    Customer.update_all("gps_location = '24x113'")
+    customers(:david).reload
+    assert_equal '24x113', customers(:david)['gps_location']
+
+    assert_equal GpsLocation.new('24x113'), customers(:david).gps_location 
+  end
+
+  def test_gps_equality
+    assert GpsLocation.new('39x110') == GpsLocation.new('39x110')
+  end
+
+  def test_gps_inequality
+    assert GpsLocation.new('39x110') != GpsLocation.new('39x111')
+  end
+end

vendor/rails/activerecord/test/all.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if [ -z "$1" ]; then
+	echo "Usage: $0 connections/<db_library>" 1>&2
+	exit 1
+fi
+
+ruby -I $1 -e 'Dir.foreach(".") { |file| require file if file =~ /_test.rb$/ }'

vendor/rails/activerecord/test/ar_schema_test.rb

@@ -0,0 +1,33 @@
+require 'abstract_unit'
+require "#{File.dirname(__FILE__)}/../lib/active_record/schema"
+
+if ActiveRecord::Base.connection.supports_migrations? 
+
+  class ActiveRecordSchemaTest < Test::Unit::TestCase
+    self.use_transactional_fixtures = false
+
+    def setup
+      @connection = ActiveRecord::Base.connection
+    end
+
+    def teardown
+      @connection.drop_table :fruits rescue nil
+    end
+
+    def test_schema_define
+      ActiveRecord::Schema.define(:version => 7) do
+        create_table :fruits do |t|
+          t.column :color, :string
+          t.column :fruit_size, :string  # NOTE: "size" is reserved in Oracle
+          t.column :texture, :string
+          t.column :flavor, :string
+        end
+      end
+
+      assert_nothing_raised { @connection.select_all "SELECT * FROM fruits" }
+      assert_nothing_raised { @connection.select_all "SELECT * FROM schema_info" }
+      assert_equal 7, @connection.select_one("SELECT version FROM schema_info")['version'].to_i
+    end
+  end
+
+end

vendor/rails/activerecord/test/association_callbacks_test.rb

@@ -0,0 +1,124 @@
+require 'abstract_unit'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/author'
+require 'fixtures/category'
+require 'fixtures/project'
+require 'fixtures/developer'
+
+class AssociationCallbacksTest < Test::Unit::TestCase
+  fixtures :posts, :authors, :projects, :developers
+
+  def setup
+    @david = authors(:david)
+    @thinking = posts(:thinking)
+    @authorless = posts(:authorless)
+    assert @david.post_log.empty?
+  end
+  
+  def test_adding_macro_callbacks
+    @david.posts_with_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
+    @david.posts_with_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", 
+                  "after_adding#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_adding_with_proc_callbacks
+    @david.posts_with_proc_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
+    @david.posts_with_proc_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", 
+                  "after_adding#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_removing_with_macro_callbacks
+    first_post, second_post = @david.posts_with_callbacks[0, 2]
+    @david.posts_with_callbacks.delete(first_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
+    @david.posts_with_callbacks.delete(second_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", 
+                  "after_removing#{second_post.id}"], @david.post_log
+  end
+
+  def test_removing_with_proc_callbacks
+    first_post, second_post = @david.posts_with_callbacks[0, 2]
+    @david.posts_with_proc_callbacks.delete(first_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
+    @david.posts_with_proc_callbacks.delete(second_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", 
+                  "after_removing#{second_post.id}"], @david.post_log
+  end
+  
+  def test_multiple_callbacks
+    @david.posts_with_multiple_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", 
+                  "after_adding_proc#{@thinking.id}"], @david.post_log
+    @david.posts_with_multiple_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", 
+                  "after_adding_proc#{@thinking.id}", "before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", 
+                  "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_has_and_belongs_to_many_add_callback
+    david = developers(:david)
+    ar = projects(:active_record)
+    assert ar.developers_log.empty?
+    ar.developers_with_callbacks << david
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log
+    ar.developers_with_callbacks << david
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}", 
+                  "after_adding#{david.id}"], ar.developers_log
+  end
+  
+  def test_has_and_belongs_to_many_remove_callback
+    david = developers(:david)
+    jamis = developers(:jamis)
+    activerecord = projects(:active_record)
+    assert activerecord.developers_log.empty?
+    activerecord.developers_with_callbacks.delete(david)
+    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}"], activerecord.developers_log
+    
+    activerecord.developers_with_callbacks.delete(jamis)
+    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}", "before_removing#{jamis.id}", 
+                  "after_removing#{jamis.id}"], activerecord.developers_log
+  end
+
+  def test_has_and_belongs_to_many_remove_callback_on_clear
+    activerecord = projects(:active_record)
+    assert activerecord.developers_log.empty?
+    if activerecord.developers_with_callbacks.size == 0
+      activerecord.developers << developers(:david)
+      activerecord.developers << developers(:jamis)
+      activerecord.reload
+      assert activerecord.developers_with_callbacks.size == 2
+    end
+    log_array = activerecord.developers_with_callbacks.collect {|d| ["before_removing#{d.id}","after_removing#{d.id}"]}.flatten.sort
+    assert activerecord.developers_with_callbacks.clear
+    assert_equal log_array, activerecord.developers_log.sort
+  end
+  
+  def test_dont_add_if_before_callback_raises_exception
+    assert !@david.unchangable_posts.include?(@authorless)
+    begin
+      @david.unchangable_posts << @authorless
+    rescue Exception => e
+    end
+    assert @david.post_log.empty?
+    assert !@david.unchangable_posts.include?(@authorless)
+    @david.reload
+    assert !@david.unchangable_posts.include?(@authorless)
+  end
+  
+  def test_push_with_attributes
+    david = developers(:david)
+    activerecord = projects(:active_record)
+    assert activerecord.developers_log.empty?
+    activerecord.developers_with_callbacks.push_with_attributes(david, {})
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], activerecord.developers_log
+    activerecord.developers_with_callbacks.push_with_attributes(david, {})
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}", 
+                  "after_adding#{david.id}"], activerecord.developers_log
+  end
+end
+

vendor/rails/activerecord/test/association_inheritance_reload.rb

@@ -0,0 +1,14 @@
+require 'abstract_unit'
+require 'fixtures/company'
+
+class AssociationInheritanceReloadTest < Test::Unit::TestCase
+  fixtures :companies
+
+  def test_set_attributes
+    assert_equal ["errors.add_on_empty('name', \"can't be empty\")"], Firm.read_inheritable_attribute("validate"), "Second run"
+    # ActiveRecord::Base.reset_column_information_and_inheritable_attributes_for_all_subclasses
+    remove_subclass_of(ActiveRecord::Base)
+    load 'fixtures/company.rb'
+    assert_equal ["errors.add_on_empty('name', \"can't be empty\")"], Firm.read_inheritable_attribute("validate"), "Second run"
+  end
+end

vendor/rails/activerecord/test/associations_cascaded_eager_loading_test.rb

@@ -0,0 +1,106 @@
+require 'abstract_unit'
+require 'active_record/acts/list'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/author'
+require 'fixtures/category'
+require 'fixtures/categorization'
+require 'fixtures/mixin'
+require 'fixtures/company'
+require 'fixtures/topic'
+require 'fixtures/reply'
+
+class CascadedEagerLoadingTest < Test::Unit::TestCase
+  fixtures :authors, :mixins, :companies, :posts, :categorizations, :topics
+
+  def test_eager_association_loading_with_cascaded_two_levels
+    authors = Author.find(:all, :include=>{:posts=>:comments}, :order=>"authors.id")
+    assert_equal 2, authors.size
+    assert_equal 5, authors[0].posts.size
+    assert_equal 1, authors[1].posts.size
+    assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i}
+  end
+
+  def test_eager_association_loading_with_cascaded_two_levels_and_one_level
+    authors = Author.find(:all, :include=>[{:posts=>:comments}, :categorizations], :order=>"authors.id")
+    assert_equal 2, authors.size
+    assert_equal 5, authors[0].posts.size
+    assert_equal 1, authors[1].posts.size
+    assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i}
+    assert_equal 1, authors[0].categorizations.size
+    assert_equal 1, authors[1].categorizations.size
+  end
+
+  def test_eager_association_loading_with_cascaded_two_levels_with_two_has_many_associations
+    authors = Author.find(:all, :include=>{:posts=>[:comments, :categorizations]}, :order=>"authors.id")
+    assert_equal 2, authors.size
+    assert_equal 5, authors[0].posts.size
+    assert_equal 1, authors[1].posts.size
+    assert_equal 9, authors[0].posts.collect{|post| post.comments.size }.inject(0){|sum,i| sum+i}
+  end
+
+  def test_eager_association_loading_with_cascaded_two_levels_and_self_table_reference
+    authors = Author.find(:all, :include=>{:posts=>[:comments, :author]}, :order=>"authors.id")
+    assert_equal 2, authors.size
+    assert_equal 5, authors[0].posts.size
+    assert_equal authors(:david).name, authors[0].name
+    assert_equal [authors(:david).name], authors[0].posts.collect{|post| post.author.name}.uniq
+  end
+
+  def test_eager_association_loading_with_cascaded_two_levels_with_condition
+    authors = Author.find(:all, :include=>{:posts=>:comments}, :conditions=>"authors.id=1", :order=>"authors.id")
+    assert_equal 1, authors.size
+    assert_equal 5, authors[0].posts.size
+  end
+
+  def test_eager_association_loading_with_acts_as_tree
+    roots = TreeMixin.find(:all, :include=>"children", :conditions=>"mixins.parent_id IS NULL", :order=>"mixins.id")
+    assert_equal [mixins(:tree_1), mixins(:tree2_1), mixins(:tree3_1)], roots
+    assert_no_queries do
+      assert_equal 2, roots[0].children.size
+      assert_equal 0, roots[1].children.size
+      assert_equal 0, roots[2].children.size
+    end
+  end
+
+  def test_eager_association_loading_with_cascaded_three_levels_by_ping_pong
+    firms = Firm.find(:all, :include=>{:account=>{:firm=>:account}}, :order=>"companies.id")
+    assert_equal 2, firms.size
+    assert_equal firms.first.account, firms.first.account.firm.account
+    assert_equal companies(:first_firm).account, assert_no_queries { firms.first.account.firm.account }
+    assert_equal companies(:first_firm).account.firm.account, assert_no_queries { firms.first.account.firm.account }
+  end
+
+  def test_eager_association_loading_with_has_many_sti
+    topics = Topic.find(:all, :include => :replies, :order => 'topics.id')
+    assert_equal [topics(:first), topics(:second)], topics
+    assert_no_queries do
+      assert_equal 1, topics[0].replies.size
+      assert_equal 0, topics[1].replies.size
+    end
+  end
+
+  def test_eager_association_loading_with_belongs_to_sti
+    replies = Reply.find(:all, :include => :topic, :order => 'topics.id')
+    assert_equal [topics(:second)], replies
+    assert_equal topics(:first), assert_no_queries { replies.first.topic }
+  end
+
+  def test_eager_association_loading_with_multiple_stis_and_order
+    author = Author.find(:first, :include => { :posts => [ :special_comments , :very_special_comment ] }, :order => 'authors.name, comments.body, very_special_comments_posts.body', :conditions => 'posts.id = 4')
+    assert_equal authors(:david), author
+    assert_no_queries do
+      author.posts.first.special_comments
+      author.posts.first.very_special_comment
+    end
+  end
+  
+  def test_eager_association_loading_of_stis_with_multiple_references
+    authors = Author.find(:all, :include => { :posts => { :special_comments => { :post => [ :special_comments, :very_special_comment ] } } }, :order => 'comments.body, very_special_comments_posts.body', :conditions => 'posts.id = 4')
+    assert_equal [authors(:david)], authors
+    assert_no_queries do
+      authors.first.posts.first.special_comments.first.post.special_comments
+      authors.first.posts.first.special_comments.first.post.very_special_comment
+    end
+  end
+end

vendor/rails/activerecord/test/associations_extensions_test.rb

@@ -0,0 +1,37 @@
+require 'abstract_unit'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/project'
+require 'fixtures/developer'
+
+class AssociationsExtensionsTest < Test::Unit::TestCase
+  fixtures :projects, :developers, :developers_projects, :comments, :posts
+
+  def test_extension_on_has_many
+    assert_equal comments(:more_greetings), posts(:welcome).comments.find_most_recent
+  end
+  
+  def test_extension_on_habtm
+    assert_equal projects(:action_controller), developers(:david).projects.find_most_recent
+  end
+
+  def test_named_extension_on_habtm
+    assert_equal projects(:action_controller), developers(:david).projects_extended_by_name.find_most_recent
+  end
+  
+  def test_marshalling_extensions
+    david = developers(:david)
+    assert_equal projects(:action_controller), david.projects.find_most_recent
+
+    david = Marshal.load(Marshal.dump(david))
+    assert_equal projects(:action_controller), david.projects.find_most_recent
+  end
+
+  def test_marshalling_named_extensions
+    david = developers(:david)
+    assert_equal projects(:action_controller), david.projects_extended_by_name.find_most_recent
+
+    david = Marshal.load(Marshal.dump(david))
+    assert_equal projects(:action_controller), david.projects_extended_by_name.find_most_recent
+  end
+end

vendor/rails/activerecord/test/associations_go_eager_test.rb

@@ -0,0 +1,359 @@
+require 'abstract_unit'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/author'
+require 'fixtures/category'
+require 'fixtures/company'
+require 'fixtures/person'
+require 'fixtures/reader'
+
+class EagerAssociationTest < Test::Unit::TestCase
+  fixtures :posts, :comments, :authors, :categories, :categories_posts,
+            :companies, :accounts, :tags, :people, :readers
+
+  def test_loading_with_one_association
+    posts = Post.find(:all, :include => :comments)
+    post = posts.find { |p| p.id == 1 }
+    assert_equal 2, post.comments.size
+    assert post.comments.include?(comments(:greetings))
+
+    post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
+    assert_equal 2, post.comments.size
+    assert post.comments.include?(comments(:greetings))
+  end
+
+  def test_loading_conditions_with_or
+    posts = authors(:david).posts.find(:all, :include => :comments, :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE} = 'SpecialComment'")
+    assert_nil posts.detect { |p| p.author_id != authors(:david).id },
+      "expected to find only david's posts"
+  end
+
+  def test_with_ordering
+    list = Post.find(:all, :include => :comments, :order => "posts.id DESC")
+    [:eager_other, :sti_habtm, :sti_post_and_comments, :sti_comments,
+     :authorless, :thinking, :welcome
+    ].each_with_index do |post, index|
+      assert_equal posts(post), list[index]
+    end
+  end
+
+  def test_loading_with_multiple_associations
+    posts = Post.find(:all, :include => [ :comments, :author, :categories ], :order => "posts.id")
+    assert_equal 2, posts.first.comments.size
+    assert_equal 2, posts.first.categories.size
+    assert posts.first.comments.include?(comments(:greetings))
+  end
+
+  def test_loading_from_an_association
+    posts = authors(:david).posts.find(:all, :include => :comments, :order => "posts.id")
+    assert_equal 2, posts.first.comments.size
+  end
+
+  def test_loading_with_no_associations
+    assert_nil Post.find(posts(:authorless).id, :include => :author).author
+  end
+
+  def test_eager_association_loading_with_belongs_to
+    comments = Comment.find(:all, :include => :post)
+    assert_equal 10, comments.length
+    titles = comments.map { |c| c.post.title }
+    assert titles.include?(posts(:welcome).title)
+    assert titles.include?(posts(:sti_post_and_comments).title)
+  end
+  
+  def test_eager_association_loading_with_belongs_to_and_limit
+    comments = Comment.find(:all, :include => :post, :limit => 5, :order => 'comments.id')
+    assert_equal 5, comments.length
+    assert_equal [1,2,3,5,6], comments.collect { |c| c.id }
+  end
+
+  def test_eager_association_loading_with_belongs_to_and_limit_and_conditions
+    comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :order => 'comments.id')
+    assert_equal 3, comments.length
+    assert_equal [5,6,7], comments.collect { |c| c.id }
+  end
+
+  def test_eager_association_loading_with_belongs_to_and_limit_and_offset
+    comments = Comment.find(:all, :include => :post, :limit => 3, :offset => 2, :order => 'comments.id')
+    assert_equal 3, comments.length
+    assert_equal [3,5,6], comments.collect { |c| c.id }
+  end
+
+  def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions
+    comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :offset => 1, :order => 'comments.id')
+    assert_equal 3, comments.length
+    assert_equal [6,7,8], comments.collect { |c| c.id }
+  end
+  
+  def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions_array
+    comments = Comment.find(:all, :include => :post, :conditions => ['post_id = ?',4], :limit => 3, :offset => 1, :order => 'comments.id')
+    assert_equal 3, comments.length
+    assert_equal [6,7,8], comments.collect { |c| c.id }
+  end
+
+  def test_eager_association_loading_with_belongs_to_and_limit_and_multiple_associations
+    posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :order => 'posts.id')
+    assert_equal 1, posts.length
+    assert_equal [1], posts.collect { |p| p.id }
+  end
+  
+  def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_multiple_associations
+    posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :offset => 1, :order => 'posts.id')
+    assert_equal 1, posts.length
+    assert_equal [2], posts.collect { |p| p.id }
+  end
+  
+  def test_eager_with_has_many_through
+    posts_with_comments = people(:michael).posts.find(:all, :include => :comments )
+    posts_with_author = people(:michael).posts.find(:all, :include => :author )
+    posts_with_comments_and_author = people(:michael).posts.find(:all, :include => [ :comments, :author ])
+    assert_equal 2, posts_with_comments.inject(0) { |sum, post| sum += post.comments.size }
+    assert_equal authors(:david), assert_no_queries { posts_with_author.first.author }
+    assert_equal authors(:david), assert_no_queries { posts_with_comments_and_author.first.author }
+  end
+
+  def test_eager_with_has_many_and_limit
+    posts = Post.find(:all, :order => 'posts.id asc', :include => [ :author, :comments ], :limit => 2)
+    assert_equal 2, posts.size
+    assert_equal 3, posts.inject(0) { |sum, post| sum += post.comments.size }
+  end
+
+  def test_eager_with_has_many_and_limit_and_conditions
+    posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.body = 'hello'", :order => "posts.id")
+    assert_equal 2, posts.size
+    assert_equal [4,5], posts.collect { |p| p.id }
+  end
+
+  def test_eager_with_has_many_and_limit_and_conditions_array
+    posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "posts.body = ?", 'hello' ], :order => "posts.id")
+    assert_equal 2, posts.size
+    assert_equal [4,5], posts.collect { |p| p.id }    
+  end
+
+  def test_eager_with_has_many_and_limit_and_conditions_array_on_the_eagers
+    posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
+    assert_equal 2, posts.size
+    
+    count = Post.count(:include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
+    assert_equal count, posts.size
+  end
+
+  def test_eager_with_has_many_and_limit_ond_high_offset
+    posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
+    assert_equal 0, posts.size
+  end
+
+  def test_count_eager_with_has_many_and_limit_ond_high_offset
+    posts = Post.count(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
+    assert_equal 0, posts
+  end
+
+  def test_eager_with_has_many_and_limit_with_no_results
+    posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.title = 'magic forest'")
+    assert_equal 0, posts.size
+  end
+
+  def test_eager_with_has_and_belongs_to_many_and_limit
+    posts = Post.find(:all, :include => :categories, :order => "posts.id", :limit => 3)
+    assert_equal 3, posts.size
+    assert_equal 2, posts[0].categories.size
+    assert_equal 1, posts[1].categories.size
+    assert_equal 0, posts[2].categories.size
+    assert posts[0].categories.include?(categories(:technology))
+    assert posts[1].categories.include?(categories(:general))
+  end
+
+  def test_eager_with_has_many_and_limit_and_conditions_on_the_eagers
+    posts = authors(:david).posts.find(:all, 
+      :include    => :comments, 
+      :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
+      :limit      => 2
+    )
+    assert_equal 2, posts.size
+    
+    count = Post.count(
+      :include    => [ :comments, :author ], 
+      :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
+      :limit      => 2
+    )
+    assert_equal count, posts.size
+  end
+
+  def test_eager_with_has_many_and_limit_and_scoped_conditions_on_the_eagers
+    posts = nil
+    Post.with_scope(:find => {
+      :include    => :comments, 
+      :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'"
+    }) do
+      posts = authors(:david).posts.find(:all, :limit => 2)
+      assert_equal 2, posts.size
+    end
+    
+    Post.with_scope(:find => {
+      :include    => [ :comments, :author ], 
+      :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')"
+    }) do
+      count = Post.count(:limit => 2)
+      assert_equal count, posts.size
+    end
+  end
+
+  def test_eager_with_has_many_and_limit_and_scoped_and_explicit_conditions_on_the_eagers
+    Post.with_scope(:find => { :conditions => "1=1" }) do
+      posts = authors(:david).posts.find(:all, 
+        :include    => :comments, 
+        :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
+        :limit      => 2
+      )
+      assert_equal 2, posts.size
+      
+      count = Post.count(
+        :include    => [ :comments, :author ], 
+        :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
+        :limit      => 2
+      )
+      assert_equal count, posts.size
+    end
+  end
+  def test_eager_association_loading_with_habtm
+    posts = Post.find(:all, :include => :categories, :order => "posts.id")
+    assert_equal 2, posts[0].categories.size
+    assert_equal 1, posts[1].categories.size
+    assert_equal 0, posts[2].categories.size
+    assert posts[0].categories.include?(categories(:technology))
+    assert posts[1].categories.include?(categories(:general))
+  end
+
+  def test_eager_with_inheritance
+    posts = SpecialPost.find(:all, :include => [ :comments ])
+  end
+
+  def test_eager_has_one_with_association_inheritance
+    post = Post.find(4, :include => [ :very_special_comment ])
+    assert_equal "VerySpecialComment", post.very_special_comment.class.to_s
+  end
+
+  def test_eager_has_many_with_association_inheritance
+    post = Post.find(4, :include => [ :special_comments ])
+    post.special_comments.each do |special_comment|
+      assert_equal "SpecialComment", special_comment.class.to_s
+    end
+  end
+
+  def test_eager_habtm_with_association_inheritance
+    post = Post.find(6, :include => [ :special_categories ])
+    assert_equal 1, post.special_categories.size
+    post.special_categories.each do |special_category|
+      assert_equal "SpecialCategory", special_category.class.to_s
+    end
+  end
+
+  def test_eager_with_has_one_dependent_does_not_destroy_dependent
+    assert_not_nil companies(:first_firm).account
+    f = Firm.find(:first, :include => :account,
+            :conditions => ["companies.name = ?", "37signals"])
+    assert_not_nil f.account
+    assert_equal companies(:first_firm, :reload).account, f.account
+  end
+
+  def test_eager_with_invalid_association_reference
+    assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
+      post = Post.find(6, :include=> :monkeys )
+    }
+    assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
+      post = Post.find(6, :include=>[ :monkeys ])
+    }
+    assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
+      post = Post.find(6, :include=>[ 'monkeys' ])
+    }
+    assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys, :elephants") {
+      post = Post.find(6, :include=>[ :monkeys, :elephants ])
+    }
+  end
+  
+  def find_all_ordered(className, include=nil)
+    className.find(:all, :order=>"#{className.table_name}.#{className.primary_key}", :include=>include)
+  end
+
+  def test_eager_with_multiple_associations_with_same_table_has_many_and_habtm
+    # Eager includes of has many and habtm associations aren't necessarily sorted in the same way
+    def assert_equal_after_sort(item1, item2, item3 = nil)
+      assert_equal(item1.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id})
+      assert_equal(item3.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id}) if item3
+    end
+    # Test regular association, association with conditions, association with
+    # STI, and association with conditions assured not to be true
+    post_types = [:posts, :hello_posts, :special_posts, :nonexistent_posts]
+    # test both has_many and has_and_belongs_to_many
+    [Author, Category].each do |className|
+      d1 = find_all_ordered(className)
+      # test including all post types at once
+      d2 = find_all_ordered(className, post_types) 
+      d1.each_index do |i| 
+        assert_equal(d1[i], d2[i])
+        assert_equal_after_sort(d1[i].posts, d2[i].posts)
+        post_types[1..-1].each do |post_type|
+          # test including post_types together
+          d3 = find_all_ordered(className, [:posts, post_type])
+          assert_equal(d1[i], d3[i])
+          assert_equal_after_sort(d1[i].posts, d3[i].posts)
+          assert_equal_after_sort(d1[i].send(post_type), d2[i].send(post_type), d3[i].send(post_type))
+        end
+      end
+    end
+  end
+  
+  def test_eager_with_multiple_associations_with_same_table_has_one
+    d1 = find_all_ordered(Firm)
+    d2 = find_all_ordered(Firm, :account)
+    d1.each_index do |i| 
+      assert_equal(d1[i], d2[i])
+      assert_equal(d1[i].account, d2[i].account)
+    end
+  end
+  
+  def test_eager_with_multiple_associations_with_same_table_belongs_to
+    firm_types = [:firm, :firm_with_basic_id, :firm_with_other_name, :firm_with_condition]
+    d1 = find_all_ordered(Client)
+    d2 = find_all_ordered(Client, firm_types)
+    d1.each_index do |i| 
+      assert_equal(d1[i], d2[i])
+      firm_types.each { |type| assert_equal(d1[i].send(type), d2[i].send(type)) }
+    end
+  end
+  def test_eager_with_valid_association_as_string_not_symbol
+    assert_nothing_raised { Post.find(:all, :include => 'comments') }
+  end
+
+  def test_preconfigured_includes_with_belongs_to
+    author = posts(:welcome).author_with_posts
+    assert_equal 5, author.posts.size
+  end
+
+  def test_preconfigured_includes_with_has_one
+    comment = posts(:sti_comments).very_special_comment_with_post
+    assert_equal posts(:sti_comments), comment.post
+  end
+
+  def test_preconfigured_includes_with_has_many
+    posts = authors(:david).posts_with_comments
+    one = posts.detect { |p| p.id == 1 }
+    assert_equal 5, posts.size
+    assert_equal 2, one.comments.size
+  end
+
+  def test_preconfigured_includes_with_habtm
+    posts = authors(:david).posts_with_categories
+    one = posts.detect { |p| p.id == 1 }
+    assert_equal 5, posts.size
+    assert_equal 2, one.categories.size
+  end
+
+  def test_preconfigured_includes_with_has_many_and_habtm
+    posts = authors(:david).posts_with_comments_and_categories
+    one = posts.detect { |p| p.id == 1 }
+    assert_equal 5, posts.size
+    assert_equal 2, one.comments.size
+    assert_equal 2, one.categories.size
+  end
+end

vendor/rails/activerecord/test/associations_join_model_test.rb

@@ -0,0 +1,370 @@
+require 'abstract_unit'
+require 'fixtures/tag'
+require 'fixtures/tagging'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/author'
+require 'fixtures/category'
+require 'fixtures/categorization'
+
+class AssociationsJoinModelTest < Test::Unit::TestCase
+  self.use_transactional_fixtures = false
+  fixtures :posts, :authors, :categories, :categorizations, :comments, :tags, :taggings, :author_favorites
+
+  def test_has_many
+    assert_equal categories(:general), authors(:david).categories.first
+  end
+  
+  def test_has_many_inherited
+    assert_equal categories(:sti_test), authors(:mary).categories.first
+  end
+
+  def test_inherited_has_many
+    assert_equal authors(:mary), categories(:sti_test).authors.first
+  end
+  
+  def test_polymorphic_has_many
+    assert_equal taggings(:welcome_general), posts(:welcome).taggings.first
+  end
+  
+  def test_polymorphic_has_one
+    assert_equal taggings(:welcome_general), posts(:welcome).tagging
+  end
+
+  def test_polymorphic_belongs_to
+    assert_equal posts(:welcome), posts(:welcome).taggings.first.taggable
+  end
+
+  def test_polymorphic_has_many_going_through_join_model
+    assert_equal tags(:general), tag = posts(:welcome).tags.first
+    assert_no_queries do
+      tag.tagging
+    end
+  end
+
+  def test_count_polymorphic_has_many
+    assert_equal 1, posts(:welcome).taggings.count
+    assert_equal 1, posts(:welcome).tags.count
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_find
+    assert_equal tags(:general), tag = posts(:welcome).tags.find(:first)
+    assert_no_queries do
+      tag.tagging
+    end
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_include_on_source_reflection
+    assert_equal tags(:general), tag = posts(:welcome).funky_tags.first
+    assert_no_queries do
+      tag.tagging
+    end
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_include_on_source_reflection_with_find
+    assert_equal tags(:general), tag = posts(:welcome).funky_tags.find(:first)
+    assert_no_queries do
+      tag.tagging
+    end
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_disabled_include
+    assert_equal tags(:general), tag = posts(:welcome).tags.add_joins_and_select.first
+    assert_queries 1 do
+      tag.tagging
+    end
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_custom_select_and_joins
+    assert_equal tags(:general), tag = posts(:welcome).tags.add_joins_and_select.first
+    tag.author_id
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_custom_foreign_key
+    assert_equal tags(:misc), taggings(:welcome_general).super_tag
+    assert_equal tags(:misc), posts(:welcome).super_tags.first
+  end
+
+  def test_polymorphic_has_many_create_model_with_inheritance_and_custom_base_class
+    post = SubStiPost.create :title => 'SubStiPost', :body => 'SubStiPost body'
+    assert_instance_of SubStiPost, post
+    
+    tagging = tags(:misc).taggings.create(:taggable => post)
+    assert_equal "SubStiPost", tagging.taggable_type
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_inheritance
+    assert_equal tags(:general), posts(:thinking).tags.first
+  end
+
+  def test_polymorphic_has_many_going_through_join_model_with_inheritance_with_custom_class_name
+    assert_equal tags(:general), posts(:thinking).funky_tags.first
+  end
+
+  def test_polymorphic_has_many_create_model_with_inheritance
+    post = posts(:thinking)
+    assert_instance_of SpecialPost, post
+    
+    tagging = tags(:misc).taggings.create(:taggable => post)
+    assert_equal "Post", tagging.taggable_type
+  end
+
+  def test_polymorphic_has_one_create_model_with_inheritance
+    tagging = tags(:misc).create_tagging(:taggable => posts(:thinking))
+    assert_equal "Post", tagging.taggable_type
+  end
+
+  def test_set_polymorphic_has_many
+    tagging = tags(:misc).taggings.create
+    posts(:thinking).taggings << tagging
+    assert_equal "Post", tagging.taggable_type
+  end
+
+  def test_set_polymorphic_has_one
+    tagging = tags(:misc).taggings.create
+    posts(:thinking).tagging = tagging
+    assert_equal "Post", tagging.taggable_type
+  end
+
+  def test_create_polymorphic_has_many_with_scope
+    old_count = posts(:welcome).taggings.count
+    tagging = posts(:welcome).taggings.create(:tag => tags(:misc))
+    assert_equal "Post", tagging.taggable_type
+    assert_equal old_count+1, posts(:welcome).taggings.count
+  end
+
+  def test_create_polymorphic_has_one_with_scope
+    old_count = Tagging.count
+    tagging = posts(:welcome).tagging.create(:tag => tags(:misc))
+    assert_equal "Post", tagging.taggable_type
+    assert_equal old_count+1, Tagging.count
+  end
+
+  def test_delete_polymorphic_has_many_with_delete_all
+    assert_equal 1, posts(:welcome).taggings.count
+    posts(:welcome).taggings.first.update_attribute :taggable_type, 'PostWithHasManyDeleteAll'
+    post = find_post_with_dependency(1, :has_many, :taggings, :delete_all)
+
+    old_count = Tagging.count
+    post.destroy
+    assert_equal old_count-1, Tagging.count
+    assert_equal 0, posts(:welcome).taggings.count
+  end
+
+  def test_delete_polymorphic_has_many_with_destroy
+    assert_equal 1, posts(:welcome).taggings.count
+    posts(:welcome).taggings.first.update_attribute :taggable_type, 'PostWithHasManyDestroy'
+    post = find_post_with_dependency(1, :has_many, :taggings, :destroy)
+
+    old_count = Tagging.count
+    post.destroy
+    assert_equal old_count-1, Tagging.count
+    assert_equal 0, posts(:welcome).taggings.count
+  end
+
+  def test_delete_polymorphic_has_many_with_nullify
+    assert_equal 1, posts(:welcome).taggings.count
+    posts(:welcome).taggings.first.update_attribute :taggable_type, 'PostWithHasManyNullify'
+    post = find_post_with_dependency(1, :has_many, :taggings, :nullify)
+
+    old_count = Tagging.count
+    post.destroy
+    assert_equal old_count, Tagging.count
+    assert_equal 0, posts(:welcome).taggings.count
+  end
+
+  def test_delete_polymorphic_has_one_with_destroy
+    assert posts(:welcome).tagging
+    posts(:welcome).tagging.update_attribute :taggable_type, 'PostWithHasOneDestroy'
+    post = find_post_with_dependency(1, :has_one, :tagging, :destroy)
+
+    old_count = Tagging.count
+    post.destroy
+    assert_equal old_count-1, Tagging.count
+    assert_nil posts(:welcome).tagging(true)
+  end
+
+  def test_delete_polymorphic_has_one_with_nullify
+    assert posts(:welcome).tagging
+    posts(:welcome).tagging.update_attribute :taggable_type, 'PostWithHasOneNullify'
+    post = find_post_with_dependency(1, :has_one, :tagging, :nullify)
+
+    old_count = Tagging.count
+    post.destroy
+    assert_equal old_count, Tagging.count
+    assert_nil posts(:welcome).tagging(true)
+  end
+
+  def test_has_many_with_piggyback
+    assert_equal "2", categories(:sti_test).authors.first.post_id.to_s
+  end
+
+  def test_include_has_many_through
+    posts              = Post.find(:all, :order => 'posts.id')
+    posts_with_authors = Post.find(:all, :include => :authors, :order => 'posts.id')
+    assert_equal posts.length, posts_with_authors.length
+    posts.length.times do |i|
+      assert_equal posts[i].authors.length, assert_no_queries { posts_with_authors[i].authors.length }
+    end
+  end
+
+  def test_include_polymorphic_has_one
+    post    = Post.find_by_id(posts(:welcome).id, :include => :tagging)
+    tagging = taggings(:welcome_general)
+    assert_no_queries do
+      assert_equal tagging, post.tagging
+    end
+  end
+
+  def test_include_polymorphic_has_many_through
+    posts           = Post.find(:all, :order => 'posts.id')
+    posts_with_tags = Post.find(:all, :include => :tags, :order => 'posts.id')
+    assert_equal posts.length, posts_with_tags.length
+    posts.length.times do |i|
+      assert_equal posts[i].tags.length, assert_no_queries { posts_with_tags[i].tags.length }
+    end
+  end
+
+  def test_include_polymorphic_has_many
+    posts               = Post.find(:all, :order => 'posts.id')
+    posts_with_taggings = Post.find(:all, :include => :taggings, :order => 'posts.id')
+    assert_equal posts.length, posts_with_taggings.length
+    posts.length.times do |i|
+      assert_equal posts[i].taggings.length, assert_no_queries { posts_with_taggings[i].taggings.length }
+    end
+  end
+
+  def test_has_many_find_all
+    assert_equal [categories(:general)], authors(:david).categories.find(:all)
+  end
+  
+  def test_has_many_find_first
+    assert_equal categories(:general), authors(:david).categories.find(:first)
+  end
+  
+  def test_has_many_find_conditions
+    assert_equal categories(:general), authors(:david).categories.find(:first, :conditions => "categories.name = 'General'")
+    assert_equal nil, authors(:david).categories.find(:first, :conditions => "categories.name = 'Technology'")
+  end
+  
+  def test_has_many_class_methods_called_by_method_missing
+    assert_equal categories(:general), authors(:david).categories.find_all_by_name('General').first
+#    assert_equal nil, authors(:david).categories.find_by_name('Technology')
+  end
+
+  def test_has_many_going_through_join_model_with_custom_foreign_key
+    assert_equal [], posts(:thinking).authors
+    assert_equal [authors(:mary)], posts(:authorless).authors
+  end
+
+  def test_belongs_to_polymorphic_with_counter_cache
+    assert_equal 0, posts(:welcome)[:taggings_count]
+    tagging = posts(:welcome).taggings.create(:tag => tags(:general))
+    assert_equal 1, posts(:welcome, :reload)[:taggings_count]
+    tagging.destroy
+    assert posts(:welcome, :reload)[:taggings_count].zero?
+  end
+
+  def test_unavailable_through_reflection
+    assert_raises (ActiveRecord::HasManyThroughAssociationNotFoundError) { authors(:david).nothings }
+  end
+
+  def test_has_many_through_join_model_with_conditions
+    assert_equal [], posts(:welcome).invalid_taggings
+    assert_equal [], posts(:welcome).invalid_tags
+  end
+
+  def test_has_many_polymorphic
+    assert_raises ActiveRecord::HasManyThroughAssociationPolymorphicError do
+      assert_equal [posts(:welcome), posts(:thinking)], tags(:general).taggables
+    end
+    assert_raises ActiveRecord::EagerLoadPolymorphicError do
+      assert_equal [posts(:welcome), posts(:thinking)], tags(:general).taggings.find(:all, :include => :taggable)
+    end
+  end
+
+  def test_has_many_through_has_many_find_all
+    assert_equal comments(:greetings), authors(:david).comments.find(:all, :order => 'comments.id').first
+  end
+
+  def test_has_many_through_has_many_find_all_with_custom_class
+    assert_equal comments(:greetings), authors(:david).funky_comments.find(:all, :order => 'comments.id').first
+  end
+
+  def test_has_many_through_has_many_find_first
+    assert_equal comments(:greetings), authors(:david).comments.find(:first, :order => 'comments.id')
+  end
+
+  def test_has_many_through_has_many_find_conditions
+    assert_equal comments(:does_it_hurt), authors(:david).comments.find(:first, :conditions => "comments.type='SpecialComment'", :order => 'comments.id')
+  end
+
+  def test_has_many_through_has_many_find_by_id
+    assert_equal comments(:more_greetings), authors(:david).comments.find(2)
+  end
+
+  def test_has_many_through_polymorphic_has_one
+    assert_raise(ActiveRecord::HasManyThroughSourceAssociationMacroError) { authors(:david).tagging }
+  end
+
+  def test_has_many_through_polymorphic_has_many
+    assert_equal [taggings(:welcome_general), taggings(:thinking_general)], authors(:david).taggings.uniq.sort_by { |t| t.id }
+  end
+
+  def test_include_has_many_through_polymorphic_has_many
+    author            = Author.find_by_id(authors(:david).id, :include => :taggings)
+    expected_taggings = [taggings(:welcome_general), taggings(:thinking_general)]
+    assert_no_queries do
+      assert_equal expected_taggings, author.taggings.uniq.sort_by { |t| t.id }
+    end
+  end
+
+  def test_has_many_through_has_many_through
+    assert_raise(ActiveRecord::HasManyThroughSourceAssociationMacroError) { authors(:david).tags }
+  end
+
+  def test_has_many_through_habtm
+    assert_raise(ActiveRecord::HasManyThroughSourceAssociationMacroError) { authors(:david).post_categories }
+  end
+
+  def test_eager_load_has_many_through_has_many
+    author = Author.find :first, :conditions => ['name = ?', 'David'], :include => :comments, :order => 'comments.id'
+    SpecialComment.new; VerySpecialComment.new
+    assert_no_queries do
+      assert_equal [1,2,3,5,6,7,8,9,10], author.comments.collect(&:id)
+    end
+  end
+
+  def test_eager_belongs_to_and_has_one_not_singularized
+    assert_nothing_raised do
+      Author.find(:first, :include => :author_address)
+      AuthorAddress.find(:first, :include => :author)
+    end
+  end
+
+  def test_self_referential_has_many_through
+    assert_equal [authors(:mary)], authors(:david).favorite_authors
+    assert_equal [],               authors(:mary).favorite_authors
+  end
+
+  def test_add_to_self_referential_has_many_through
+    new_author = Author.create(:name => "Bob")
+    authors(:david).author_favorites.create :favorite_author => new_author
+    assert_equal new_author, authors(:david).reload.favorite_authors.first
+  end
+
+  def test_has_many_through_uses_correct_attributes
+    assert_nil posts(:thinking).tags.find_by_name("General").attributes["tag_id"]
+  end
+
+  private
+    # create dynamic Post models to allow different dependency options
+    def find_post_with_dependency(post_id, association, association_name, dependency)
+      class_name = "PostWith#{association.to_s.classify}#{dependency.to_s.classify}"
+      Post.find(post_id).update_attribute :type, class_name
+      klass = Object.const_set(class_name, Class.new(ActiveRecord::Base))
+      klass.set_table_name 'posts'
+      klass.send(association, association_name, :as => :taggable, :dependent => dependency)
+      klass.find(post_id)
+    end
+end

vendor/rails/activerecord/test/binary_test.rb

@@ -0,0 +1,37 @@
+require 'abstract_unit'
+require 'fixtures/binary'
+
+class BinaryTest < Test::Unit::TestCase
+  BINARY_FIXTURE_PATH = File.dirname(__FILE__) + '/fixtures/flowers.jpg'
+
+  def setup
+    Binary.connection.execute 'DELETE FROM binaries'
+    @data = File.read(BINARY_FIXTURE_PATH).freeze
+  end
+  
+  def test_truth
+    assert true
+  end
+
+  # Without using prepared statements, it makes no sense to test
+  # BLOB data with SQL Server, because the length of a statement is
+  # limited to 8KB.
+  #
+  # Without using prepared statements, it makes no sense to test
+  # BLOB data with DB2 or Firebird, because the length of a statement
+  # is limited to 32KB.
+  unless %w(SQLServer Sybase DB2 Oracle Firebird).include? ActiveRecord::Base.connection.adapter_name
+    def test_load_save
+      bin = Binary.new
+      bin.data = @data
+
+      assert @data == bin.data, 'Newly assigned data differs from original'
+          
+      bin.save
+      assert @data == bin.data, 'Data differs from original after save'
+
+      db_bin = Binary.find(bin.id)
+      assert @data == db_bin.data, 'Reloaded data differs from original'
+    end
+  end
+end

vendor/rails/activerecord/test/calculations_test.rb

@@ -0,0 +1,181 @@
+require 'abstract_unit'
+require 'fixtures/company'
+require 'fixtures/topic'
+
+Company.has_many :accounts
+
+class CalculationsTest < Test::Unit::TestCase
+  fixtures :companies, :accounts, :topics
+
+  def test_should_sum_field
+    assert_equal 265, Account.sum(:credit_limit)
+  end
+
+  def test_should_average_field
+    value = Account.average(:credit_limit)
+    assert_equal 53, value
+    assert_kind_of Float, value
+  end
+
+  def test_should_get_maximum_of_field
+    assert_equal 60, Account.maximum(:credit_limit)
+  end
+
+  def test_should_get_minimum_of_field
+    assert_equal 50, Account.minimum(:credit_limit)
+  end
+
+  def test_should_group_by_field
+    c = Account.sum(:credit_limit, :group => :firm_id)
+    [1,6,2].each { |firm_id| assert c.keys.include?(firm_id) }
+  end
+
+  def test_should_group_by_summed_field
+    c = Account.sum(:credit_limit, :group => :firm_id)
+    assert_equal 50,   c[1]
+    assert_equal 105,  c[6]
+    assert_equal 60,   c[2]
+  end
+
+  def test_should_order_by_grouped_field
+    c = Account.sum(:credit_limit, :group => :firm_id, :order => "firm_id")
+    assert_equal [1, 2, 6], c.keys.compact
+  end
+
+  def test_should_order_by_calculation
+    c = Account.sum(:credit_limit, :group => :firm_id, :order => "sum_credit_limit desc, firm_id")
+    assert_equal [105, 60, 50, 50], c.keys.collect { |k| c[k] }
+    assert_equal [6, 2, 1], c.keys.compact
+  end
+
+  def test_should_limit_calculation
+    c = Account.sum(:credit_limit, :conditions => "firm_id IS NOT NULL",
+                    :group => :firm_id, :order => "firm_id", :limit => 2)
+    assert_equal [1, 2], c.keys.compact
+  end
+
+  def test_should_limit_calculation_with_offset
+    c = Account.sum(:credit_limit, :conditions => "firm_id IS NOT NULL",
+                    :group => :firm_id, :order => "firm_id", :limit => 2, :offset => 1)
+    assert_equal [2, 6], c.keys.compact
+  end
+
+  def test_should_group_by_summed_field_having_condition
+    c = Account.sum(:credit_limit, :group => :firm_id, 
+                                   :having => 'sum(credit_limit) > 50')
+    assert_nil        c[1]
+    assert_equal 105, c[6]
+    assert_equal 60,  c[2]
+  end
+
+  def test_should_group_by_summed_association
+    c = Account.sum(:credit_limit, :group => :firm)
+    assert_equal 50,   c[companies(:first_firm)]
+    assert_equal 105,  c[companies(:rails_core)]
+    assert_equal 60,   c[companies(:first_client)]
+  end
+  
+  def test_should_sum_field_with_conditions
+    assert_equal 105, Account.sum(:credit_limit, :conditions => 'firm_id = 6')
+  end
+
+  def test_should_group_by_summed_field_with_conditions
+    c = Account.sum(:credit_limit, :conditions => 'firm_id > 1', 
+                                   :group => :firm_id)
+    assert_nil        c[1]
+    assert_equal 105, c[6]
+    assert_equal 60,  c[2]
+  end
+  
+  def test_should_group_by_summed_field_with_conditions_and_having
+    c = Account.sum(:credit_limit, :conditions => 'firm_id > 1', 
+                                   :group => :firm_id, 
+                                   :having => 'sum(credit_limit) > 60')
+    assert_nil        c[1]
+    assert_equal 105, c[6]
+    assert_nil        c[2]
+  end
+
+  def test_should_group_by_fields_with_table_alias
+    c = Account.sum(:credit_limit, :group => 'accounts.firm_id')
+    assert_equal 50,  c[1]
+    assert_equal 105, c[6]
+    assert_equal 60,  c[2]
+  end
+  
+  def test_should_calculate_with_invalid_field
+    assert_equal 5, Account.calculate(:count, '*')
+    assert_equal 5, Account.calculate(:count, :all)
+  end
+  
+  def test_should_calculate_grouped_with_invalid_field
+    c = Account.count(:all, :group => 'accounts.firm_id')
+    assert_equal 1, c[1]
+    assert_equal 2, c[6]
+    assert_equal 1, c[2]
+  end
+  
+  def test_should_calculate_grouped_association_with_invalid_field
+    c = Account.count(:all, :group => :firm)
+    assert_equal 1, c[companies(:first_firm)]
+    assert_equal 2, c[companies(:rails_core)]
+    assert_equal 1, c[companies(:first_client)]
+  end
+
+  def test_should_calculate_grouped_by_function
+    c = Company.count(:all, :group => 'UPPER(type)')
+    assert_equal 2, c[nil]
+    assert_equal 1, c['DEPENDENTFIRM']
+    assert_equal 3, c['CLIENT']
+    assert_equal 2, c['FIRM']
+  end
+  
+  def test_should_calculate_grouped_by_function_with_table_alias
+    c = Company.count(:all, :group => 'UPPER(companies.type)')
+    assert_equal 2, c[nil]
+    assert_equal 1, c['DEPENDENTFIRM']
+    assert_equal 3, c['CLIENT']
+    assert_equal 2, c['FIRM']
+  end
+
+  def test_should_sum_scoped_field
+    assert_equal 15, companies(:rails_core).companies.sum(:id)
+  end
+
+  def test_should_sum_scoped_field_with_conditions
+    assert_equal 8,  companies(:rails_core).companies.sum(:id, :conditions => 'id > 7')
+  end
+
+  def test_should_group_by_scoped_field
+    c = companies(:rails_core).companies.sum(:id, :group => :name)
+    assert_equal 7, c['Leetsoft']
+    assert_equal 8, c['Jadedpixel']
+  end
+
+  def test_should_group_by_summed_field_with_conditions_and_having
+    c = companies(:rails_core).companies.sum(:id, :group => :name,
+                                                  :having => 'sum(id) > 7')
+    assert_nil      c['Leetsoft']
+    assert_equal 8, c['Jadedpixel']
+  end
+
+  def test_should_reject_invalid_options
+    assert_nothing_raised do
+      [:count, :sum].each do |func|
+        # empty options are valid
+        Company.send(:validate_calculation_options, func)
+        # these options are valid for all calculations
+        [:select, :conditions, :joins, :order, :group, :having, :distinct].each do |opt| 
+          Company.send(:validate_calculation_options, func, opt => true)
+        end
+      end
+      
+      # :include is only valid on :count
+      Company.send(:validate_calculation_options, :count, :include => true)
+    end
+    
+    assert_raises(ArgumentError) { Company.send(:validate_calculation_options, :sum,   :include => :posts) }
+    assert_raises(ArgumentError) { Company.send(:validate_calculation_options, :sum,   :foo => :bar) }
+    assert_raises(ArgumentError) { Company.send(:validate_calculation_options, :count, :foo => :bar) }
+  end
+end

vendor/rails/activerecord/test/callbacks_test.rb

@@ -0,0 +1,364 @@
+require 'abstract_unit'
+
+class CallbackDeveloper < ActiveRecord::Base
+  set_table_name 'developers'
+
+  class << self
+    def callback_string(callback_method)
+      "history << [#{callback_method.to_sym.inspect}, :string]"
+    end
+
+    def callback_proc(callback_method)
+      Proc.new { |model| model.history << [callback_method, :proc] }
+    end
+
+    def define_callback_method(callback_method)
+      define_method("#{callback_method}_method") do |model|
+        model.history << [callback_method, :method]
+      end
+    end
+
+    def callback_object(callback_method)
+      klass = Class.new
+      klass.send(:define_method, callback_method) do |model|
+        model.history << [callback_method, :object]
+      end
+      klass.new
+    end
+  end
+
+  ActiveRecord::Callbacks::CALLBACKS.each do |callback_method|
+    callback_method_sym = callback_method.to_sym
+    define_callback_method(callback_method_sym)
+    send(callback_method, callback_method_sym)
+    send(callback_method, callback_string(callback_method_sym))
+    send(callback_method, callback_proc(callback_method_sym))
+    send(callback_method, callback_object(callback_method_sym))
+    send(callback_method) { |model| model.history << [callback_method_sym, :block] }
+  end
+
+  def history
+    @history ||= []
+  end
+
+  # after_initialize and after_find are invoked only if instance methods have been defined.
+  def after_initialize
+  end
+
+  def after_find
+  end
+end
+
+class RecursiveCallbackDeveloper < ActiveRecord::Base
+  set_table_name 'developers'
+
+  before_save :on_before_save
+  after_save :on_after_save
+
+  attr_reader :on_before_save_called, :on_after_save_called
+
+  def on_before_save
+    @on_before_save_called ||= 0
+    @on_before_save_called += 1
+    save unless @on_before_save_called > 1
+  end
+
+  def on_after_save
+    @on_after_save_called ||= 0
+    @on_after_save_called += 1
+    save unless @on_after_save_called > 1
+  end
+end
+
+class ImmutableDeveloper < ActiveRecord::Base
+  set_table_name 'developers'
+
+  validates_inclusion_of :salary, :in => 50000..200000
+
+  before_save :cancel
+  before_destroy :cancel
+
+  def cancelled?
+    @cancelled == true
+  end
+
+  private
+    def cancel
+      @cancelled = true
+      false
+    end
+end
+
+class ImmutableMethodDeveloper < ActiveRecord::Base
+  set_table_name 'developers'
+
+  validates_inclusion_of :salary, :in => 50000..200000
+
+  def cancelled?
+    @cancelled == true
+  end
+
+  def before_save
+    @cancelled = true
+    false
+  end
+
+  def before_destroy
+    @cancelled = true
+    false
+  end
+end
+
+class CallbacksTest < Test::Unit::TestCase
+  fixtures :developers
+
+  def test_initialize
+    david = CallbackDeveloper.new
+    assert_equal [
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+    ], david.history
+  end
+
+  def test_find
+    david = CallbackDeveloper.find(1)
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+    ], david.history
+  end
+
+  def test_new_valid?
+    david = CallbackDeveloper.new
+    david.valid?
+    assert_equal [
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_validation,           :string ],
+      [ :before_validation,           :proc   ],
+      [ :before_validation,           :object ],
+      [ :before_validation,           :block  ],
+      [ :before_validation_on_create, :string ],
+      [ :before_validation_on_create, :proc   ],
+      [ :before_validation_on_create, :object ],
+      [ :before_validation_on_create, :block  ],
+      [ :after_validation,            :string ],
+      [ :after_validation,            :proc   ],
+      [ :after_validation,            :object ],
+      [ :after_validation,            :block  ],
+      [ :after_validation_on_create,  :string ],
+      [ :after_validation_on_create,  :proc   ],
+      [ :after_validation_on_create,  :object ],
+      [ :after_validation_on_create,  :block  ]
+    ], david.history
+  end
+
+  def test_existing_valid?
+    david = CallbackDeveloper.find(1)
+    david.valid?
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_validation,           :string ],
+      [ :before_validation,           :proc   ],
+      [ :before_validation,           :object ],
+      [ :before_validation,           :block  ],
+      [ :before_validation_on_update, :string ],
+      [ :before_validation_on_update, :proc   ],
+      [ :before_validation_on_update, :object ],
+      [ :before_validation_on_update, :block  ],
+      [ :after_validation,            :string ],
+      [ :after_validation,            :proc   ],
+      [ :after_validation,            :object ],
+      [ :after_validation,            :block  ],
+      [ :after_validation_on_update,  :string ],
+      [ :after_validation_on_update,  :proc   ],
+      [ :after_validation_on_update,  :object ],
+      [ :after_validation_on_update,  :block  ]
+    ], david.history
+  end
+
+  def test_create
+    david = CallbackDeveloper.create('name' => 'David', 'salary' => 1000000)
+    assert_equal [
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_validation,           :string ],
+      [ :before_validation,           :proc   ],
+      [ :before_validation,           :object ],
+      [ :before_validation,           :block  ],
+      [ :before_validation_on_create, :string ],
+      [ :before_validation_on_create, :proc   ],
+      [ :before_validation_on_create, :object ],
+      [ :before_validation_on_create, :block  ],
+      [ :after_validation,            :string ],
+      [ :after_validation,            :proc   ],
+      [ :after_validation,            :object ],
+      [ :after_validation,            :block  ],
+      [ :after_validation_on_create,  :string ],
+      [ :after_validation_on_create,  :proc   ],
+      [ :after_validation_on_create,  :object ],
+      [ :after_validation_on_create,  :block  ],
+      [ :before_save,                 :string ],
+      [ :before_save,                 :proc   ],
+      [ :before_save,                 :object ],
+      [ :before_save,                 :block  ],
+      [ :before_create,               :string ],
+      [ :before_create,               :proc   ],
+      [ :before_create,               :object ],
+      [ :before_create,               :block  ],
+      [ :after_create,                :string ],
+      [ :after_create,                :proc   ],
+      [ :after_create,                :object ],
+      [ :after_create,                :block  ],
+      [ :after_save,                  :string ],
+      [ :after_save,                  :proc   ],
+      [ :after_save,                  :object ],
+      [ :after_save,                  :block  ]
+    ], david.history
+  end
+
+  def test_save
+    david = CallbackDeveloper.find(1)
+    david.save
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_validation,           :string ],
+      [ :before_validation,           :proc   ],
+      [ :before_validation,           :object ],
+      [ :before_validation,           :block  ],
+      [ :before_validation_on_update, :string ],
+      [ :before_validation_on_update, :proc   ],
+      [ :before_validation_on_update, :object ],
+      [ :before_validation_on_update, :block  ],
+      [ :after_validation,            :string ],
+      [ :after_validation,            :proc   ],
+      [ :after_validation,            :object ],
+      [ :after_validation,            :block  ],
+      [ :after_validation_on_update,  :string ],
+      [ :after_validation_on_update,  :proc   ],
+      [ :after_validation_on_update,  :object ],
+      [ :after_validation_on_update,  :block  ],
+      [ :before_save,                 :string ],
+      [ :before_save,                 :proc   ],
+      [ :before_save,                 :object ],
+      [ :before_save,                 :block  ],
+      [ :before_update,               :string ],
+      [ :before_update,               :proc   ],
+      [ :before_update,               :object ],
+      [ :before_update,               :block  ],
+      [ :after_update,                :string ],
+      [ :after_update,                :proc   ],
+      [ :after_update,                :object ],
+      [ :after_update,                :block  ],
+      [ :after_save,                  :string ],
+      [ :after_save,                  :proc   ],
+      [ :after_save,                  :object ],
+      [ :after_save,                  :block  ]
+    ], david.history
+  end
+
+  def test_destroy
+    david = CallbackDeveloper.find(1)
+    david.destroy
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_destroy,              :string ],
+      [ :before_destroy,              :proc   ],
+      [ :before_destroy,              :object ],
+      [ :before_destroy,              :block  ],
+      [ :after_destroy,               :string ],
+      [ :after_destroy,               :proc   ],
+      [ :after_destroy,               :object ],
+      [ :after_destroy,               :block  ]
+    ], david.history
+  end
+
+  def test_delete
+    david = CallbackDeveloper.find(1)
+    CallbackDeveloper.delete(david.id)
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+    ], david.history
+  end
+
+  def test_before_save_returning_false
+    david = ImmutableDeveloper.find(1)
+    assert david.valid?
+    assert !david.save
+    assert_raises(ActiveRecord::RecordNotSaved) { david.save! }
+
+    david = ImmutableDeveloper.find(1)
+    david.salary = 10_000_000
+    assert !david.valid?
+    assert !david.save
+    assert_raises(ActiveRecord::RecordInvalid) { david.save! }
+  end
+
+  def test_before_destroy_returning_false
+    david = ImmutableDeveloper.find(1)
+    assert !david.destroy
+    assert_not_nil ImmutableDeveloper.find_by_id(1)
+  end  
+
+  def test_zzz_callback_returning_false # must be run last since we modify CallbackDeveloper
+    david = CallbackDeveloper.find(1)
+    CallbackDeveloper.before_validation proc { |model| model.history << [:before_validation, :returning_false]; return false }
+    CallbackDeveloper.before_validation proc { |model| model.history << [:before_validation, :should_never_get_here] }
+    david.save
+    assert_equal [
+      [ :after_find,            :string ],
+      [ :after_find,            :proc   ],
+      [ :after_find,            :object ],
+      [ :after_find,            :block  ],
+      [ :after_initialize,            :string ],
+      [ :after_initialize,            :proc   ],
+      [ :after_initialize,            :object ],
+      [ :after_initialize,            :block  ],
+      [ :before_validation,           :string ],
+      [ :before_validation,           :proc   ],
+      [ :before_validation,           :object ],
+      [ :before_validation,           :block  ],
+      [ :before_validation, :returning_false  ]
+    ], david.history
+  end
+end

vendor/rails/activerecord/test/class_inheritable_attributes_test.rb

@@ -0,0 +1,32 @@
+require 'test/unit'
+require 'abstract_unit'
+require 'active_support/core_ext/class/inheritable_attributes'
+
+class A
+  include ClassInheritableAttributes
+end
+
+class B < A
+  write_inheritable_array "first", [ :one, :two ]
+end
+
+class C < A
+  write_inheritable_array "first", [ :three ]
+end
+
+class D < B
+  write_inheritable_array "first", [ :four ]
+end
+
+
+class ClassInheritableAttributesTest < Test::Unit::TestCase
+  def test_first_level
+    assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
+    assert_equal [ :three ], C.read_inheritable_attribute("first")
+  end
+  
+  def test_second_level
+    assert_equal [ :one, :two, :four ], D.read_inheritable_attribute("first")
+    assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
+  end
+end

vendor/rails/activerecord/test/column_alias_test.rb

@@ -0,0 +1,17 @@
+require 'abstract_unit'
+require 'fixtures/topic'
+
+class TestColumnAlias < Test::Unit::TestCase
+  fixtures :topics
+
+  QUERY = if 'Oracle' == ActiveRecord::Base.connection.adapter_name
+            'SELECT id AS pk FROM topics WHERE ROWNUM < 2'
+          else
+            'SELECT id AS pk FROM topics'
+          end
+
+  def test_column_alias
+    records = Topic.connection.select_all(QUERY)
+    assert_equal 'pk', records[0].keys[0]
+  end
+end

vendor/rails/activerecord/test/connections/native_db2/connection.rb

@@ -0,0 +1,24 @@
+print "Using native DB2\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'arunit'
+db2 = 'arunit2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "db2",
+  :host     => "localhost",
+  :username => "arunit",
+  :password => "arunit",
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "db2",
+  :host     => "localhost",
+  :username => "arunit2",
+  :password => "arunit2",
+  :database => db2
+)

vendor/rails/activerecord/test/connections/native_firebird/connection.rb

@@ -0,0 +1,24 @@
+print "Using native Firebird\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "firebird",
+  :host     => "localhost",
+  :username => "rails",
+  :password => "rails",
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "firebird",
+  :host     => "localhost",
+  :username => "rails",
+  :password => "rails",
+  :database => db2
+)

vendor/rails/activerecord/test/connections/native_mysql/connection.rb

@@ -0,0 +1,21 @@
+print "Using native MySQL\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "mysql",
+  :username => "rails",
+  :encoding => "utf8",
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "mysql",
+  :username => "rails",
+  :database => db2
+)

vendor/rails/activerecord/test/connections/native_openbase/connection.rb

@@ -0,0 +1,22 @@
+print "Using native OpenBase\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "openbase",
+  :username => "admin",
+  :password => "", 
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "openbase",
+  :username => "admin",
+  :password => "", 
+  :database => db2
+)

vendor/rails/activerecord/test/connections/native_oracle/connection.rb

@@ -0,0 +1,23 @@
+print "Using Oracle\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new STDOUT
+ActiveRecord::Base.logger.level = Logger::WARN
+
+# Set these to your database connection strings
+db = ENV['ARUNIT_DB'] || 'activerecord_unittest'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => 'oracle',
+  :username => 'arunit',
+  :password => 'arunit',
+  :database => db
+)
+
+Course.establish_connection(
+  :adapter  => 'oracle',
+  :username => 'arunit2',
+  :password => 'arunit2',
+  :database => db
+)

vendor/rails/activerecord/test/connections/native_postgresql/connection.rb

@@ -0,0 +1,24 @@
+print "Using native PostgreSQL\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "postgresql",
+  :username => "postgres",
+  :password => "postgres", 
+  :database => db1,
+  :min_messages => "warning"
+)
+
+Course.establish_connection(
+  :adapter  => "postgresql",
+  :username => "postgres",
+  :password => "postgres", 
+  :database => db2,
+  :min_messages => "warning"
+)

vendor/rails/activerecord/test/connections/native_sqlite/connection.rb

@@ -0,0 +1,37 @@
+print "Using native SQlite\n"
+require_dependency 'fixtures/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+class SqliteError < StandardError
+end
+
+BASE_DIR = File.expand_path(File.dirname(__FILE__) + '/../../fixtures')
+sqlite_test_db  = "#{BASE_DIR}/fixture_database.sqlite"
+sqlite_test_db2 = "#{BASE_DIR}/fixture_database_2.sqlite"
+
+def make_connection(clazz, db_file, db_definitions_file)
+  unless File.exist?(db_file)
+    puts "SQLite database not found at #{db_file}. Rebuilding it."
+    sqlite_command = %Q{sqlite #{db_file} "create table a (a integer); drop table a;"}
+    puts "Executing '#{sqlite_command}'"
+    raise SqliteError.new("Seems that there is no sqlite executable available") unless system(sqlite_command)
+    clazz.establish_connection(
+        :adapter => "sqlite",
+        :database  => db_file)
+    script = File.read("#{BASE_DIR}/db_definitions/#{db_definitions_file}")
+    # SQLite-Ruby has problems with semi-colon separated commands, so split and execute one at a time
+    script.split(';').each do
+      |command|
+      clazz.connection.execute(command) unless command.strip.empty?
+    end
+  else
+    clazz.establish_connection(
+        :adapter => "sqlite",
+        :database  => db_file)
+  end
+end
+
+make_connection(ActiveRecord::Base, sqlite_test_db, 'sqlite.sql')
+make_connection(Course, sqlite_test_db2, 'sqlite2.sql')
+load(File.join(BASE_DIR, 'db_definitions', 'schema.rb'))

vendor/rails/activerecord/test/connections/native_sqlite3/connection.rb

@@ -0,0 +1,37 @@
+print "Using native SQLite3\n"
+require_dependency 'fixtures/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+class SqliteError < StandardError
+end
+
+BASE_DIR = File.expand_path(File.dirname(__FILE__) + '/../../fixtures')
+sqlite_test_db  = "#{BASE_DIR}/fixture_database.sqlite3"
+sqlite_test_db2 = "#{BASE_DIR}/fixture_database_2.sqlite3"
+
+def make_connection(clazz, db_file, db_definitions_file)
+  unless File.exist?(db_file)
+    puts "SQLite3 database not found at #{db_file}. Rebuilding it."
+    sqlite_command = %Q{sqlite3 #{db_file} "create table a (a integer); drop table a;"}
+    puts "Executing '#{sqlite_command}'"
+    raise SqliteError.new("Seems that there is no sqlite3 executable available") unless system(sqlite_command)
+    clazz.establish_connection(
+        :adapter => "sqlite3",
+        :database  => db_file)
+    script = File.read("#{BASE_DIR}/db_definitions/#{db_definitions_file}")
+    # SQLite-Ruby has problems with semi-colon separated commands, so split and execute one at a time
+    script.split(';').each do
+      |command|
+      clazz.connection.execute(command) unless command.strip.empty?
+    end
+  else
+    clazz.establish_connection(
+        :adapter => "sqlite3",
+        :database  => db_file)
+  end
+end
+
+make_connection(ActiveRecord::Base, sqlite_test_db, 'sqlite.sql')
+make_connection(Course, sqlite_test_db2, 'sqlite2.sql')
+load(File.join(BASE_DIR, 'db_definitions', 'schema.rb'))

vendor/rails/activerecord/test/connections/native_sqlite3/in_memory_connection.rb

@@ -0,0 +1,18 @@
+print "Using native SQLite3\n"
+require_dependency 'fixtures/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+class SqliteError < StandardError
+end
+
+def make_connection(clazz, db_definitions_file)
+  clazz.establish_connection(:adapter => 'sqlite3', :database  => ':memory:')
+  File.read("#{File.dirname(__FILE__)}/../../fixtures/db_definitions/#{db_definitions_file}").split(';').each do |command|
+    clazz.connection.execute(command) unless command.strip.empty?
+  end
+end
+
+make_connection(ActiveRecord::Base, 'sqlite.sql')
+make_connection(Course, 'sqlite2.sql')
+  load("#{File.dirname(__FILE__)}/../../fixtures/db_definitions/schema.rb"))

vendor/rails/activerecord/test/connections/native_sqlserver/connection.rb

@@ -0,0 +1,24 @@
+print "Using native SQLServer\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "sqlserver",
+  :host     => "localhost",
+  :username => "sa",
+  :password => "",
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "sqlserver",
+  :host     => "localhost",
+  :username => "sa",
+  :password => "",
+  :database => db2
+)

vendor/rails/activerecord/test/connections/native_sqlserver_odbc/connection.rb

@@ -0,0 +1,26 @@
+print "Using native SQLServer via ODBC\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+dsn1 = 'activerecord_unittest'
+dsn2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "sqlserver",
+  :mode     => "ODBC",
+  :host     => "localhost",
+  :username => "sa",
+  :password => "",
+  :dsn => dsn1
+)
+
+Course.establish_connection(
+  :adapter  => "sqlserver",
+  :mode     => "ODBC",
+  :host     => "localhost",
+  :username => "sa",
+  :password => "",
+  :dsn => dsn2
+)

vendor/rails/activerecord/test/connections/native_sybase/connection.rb

@@ -0,0 +1,24 @@
+print "Using native Sybase Open Client\n"
+require_dependency 'fixtures/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+db1 = 'activerecord_unittest'
+db2 = 'activerecord_unittest2'
+
+ActiveRecord::Base.establish_connection(
+  :adapter  => "sybase",
+  :host     => "database_ASE",
+  :username => "sa",
+  :password => "",
+  :database => db1
+)
+
+Course.establish_connection(
+  :adapter  => "sybase",
+  :host     => "database_ASE",
+  :username => "sa",
+  :password => "",
+  :database => db2
+)

vendor/rails/activerecord/test/copy_table_sqlite.rb

@@ -0,0 +1,64 @@
+require 'abstract_unit'
+
+class CopyTableTest < Test::Unit::TestCase
+  fixtures :companies, :comments
+  
+  def setup
+    @connection = ActiveRecord::Base.connection
+    class << @connection
+      public :copy_table, :table_structure, :indexes
+    end
+  end
+  
+  def test_copy_table(from = 'companies', to = 'companies2', options = {})
+    assert_nothing_raised {copy_table(from, to, options)}
+    assert_equal row_count(from), row_count(to)
+      
+    if block_given?
+      yield from, to, options
+    else
+      assert_equal column_names(from), column_names(to)
+    end
+    
+    @connection.drop_table(to) rescue nil
+  end
+  
+  def test_copy_table_renaming_column
+    test_copy_table('companies', 'companies2', 
+        :rename => {'client_of' => 'fan_of'}) do |from, to, options|
+      assert_equal column_values(from, 'client_of').compact.sort, 
+                   column_values(to, 'fan_of').compact.sort
+    end
+  end
+  
+  def test_copy_table_with_index
+    test_copy_table('comments', 'comments_with_index') do
+      @connection.add_index('comments_with_index', ['post_id', 'type'])
+      test_copy_table('comments_with_index', 'comments_with_index2') do
+        assert_equal table_indexes_without_name('comments_with_index'),
+                     table_indexes_without_name('comments_with_index2')
+      end
+    end
+  end
+  
+protected
+  def copy_table(from, to, options = {})
+    @connection.copy_table(from, to, {:temporary => true}.merge(options))
+  end
+
+  def column_names(table)
+    @connection.table_structure(table).map {|column| column['name']}
+  end
+  
+  def column_values(table, column)
+    @connection.select_all("SELECT #{column} FROM #{table}").map {|row| row[column]}
+  end
+
+  def table_indexes_without_name(table)
+    @connection.indexes('comments_with_index').delete(:name)
+  end
+  
+  def row_count(table)
+    @connection.select_one("SELECT COUNT(*) AS count FROM #{table}")['count']
+  end
+end

vendor/rails/activerecord/test/default_test_firebird.rb

@@ -0,0 +1,16 @@
+require 'abstract_unit'
+require 'fixtures/default'
+
+class DefaultTest < Test::Unit::TestCase
+  def test_default_timestamp
+    default = Default.new
+    assert_instance_of(Time, default.default_timestamp)
+    assert_equal(:datetime, default.column_for_attribute(:default_timestamp).type)
+
+    # Variance should be small; increase if required -- e.g., if test db is on
+    # remote host and clocks aren't synchronized.
+    t1 = Time.new
+    accepted_variance = 1.0
+    assert_in_delta(t1.to_f, default.default_timestamp.to_f, accepted_variance)
+  end
+end

vendor/rails/activerecord/test/defaults_test.rb

@@ -0,0 +1,18 @@
+require 'abstract_unit'
+require 'fixtures/default'
+
+class DefaultsTest < Test::Unit::TestCase
+  if %w(PostgreSQL).include? ActiveRecord::Base.connection.adapter_name
+    def test_default_integers
+      default = Default.new
+      assert_instance_of(Fixnum, default.positive_integer)
+      assert_equal(default.positive_integer, 1)
+      assert_instance_of(Fixnum, default.negative_integer)
+      assert_equal(default.negative_integer, -1)
+    end
+  else
+    def test_dummy
+      assert true
+    end
+  end
+end

vendor/rails/activerecord/test/deprecated_associations_test.rb

@@ -0,0 +1,352 @@
+require 'abstract_unit'
+require 'fixtures/developer'
+require 'fixtures/project'
+require 'fixtures/company'
+require 'fixtures/topic'
+require 'fixtures/reply'
+
+# Can't declare new classes in test case methods, so tests before that
+bad_collection_keys = false
+begin
+  class Car < ActiveRecord::Base; has_many :wheels, :name => "wheels"; end
+rescue ArgumentError
+  bad_collection_keys = true
+end
+raise "ActiveRecord should have barked on bad collection keys" unless bad_collection_keys
+
+
+class DeprecatedAssociationsTest < Test::Unit::TestCase
+  fixtures :accounts, :companies, :developers, :projects, :topics,
+           :developers_projects
+
+  def test_has_many_find
+    assert_equal 2, Firm.find_first.clients.length
+  end
+
+  def test_has_many_orders
+    assert_equal "Summit", Firm.find_first.clients.first.name
+  end
+
+  def test_has_many_class_name
+    assert_equal "Microsoft", Firm.find_first.clients_sorted_desc.first.name
+  end
+
+  def test_has_many_foreign_key
+    assert_equal "Microsoft", Firm.find_first.clients_of_firm.first.name
+  end
+
+  def test_has_many_conditions
+    assert_equal "Microsoft", Firm.find_first.clients_like_ms.first.name
+  end
+
+  def test_has_many_sql
+    firm = Firm.find_first
+    assert_equal "Microsoft", firm.clients_using_sql.first.name
+    assert_equal 1, firm.clients_using_sql_count
+    assert_equal 1, Firm.find_first.clients_using_sql_count
+  end
+
+  def test_has_many_counter_sql
+    assert_equal 1, Firm.find_first.clients_using_counter_sql_count
+  end
+
+  def test_has_many_queries
+    assert Firm.find_first.has_clients?
+    firm = Firm.find_first
+    assert_equal 2, firm.clients_count # tests using class count
+    firm.clients
+    assert firm.has_clients?
+    assert_equal 2, firm.clients_count # tests using collection length
+  end
+
+  def test_has_many_dependence
+    assert_equal 3, Client.find_all.length
+    Firm.find_first.destroy
+    assert_equal 1, Client.find_all.length
+  end
+
+  uses_transaction :test_has_many_dependence_with_transaction_support_on_failure
+  def test_has_many_dependence_with_transaction_support_on_failure
+    assert_equal 3, Client.find_all.length
+
+    firm = Firm.find_first
+    clients = firm.clients
+    clients.last.instance_eval { def before_destroy() raise "Trigger rollback" end }
+
+    firm.destroy rescue "do nothing"
+
+    assert_equal 3, Client.find_all.length
+  end
+
+  def test_has_one_dependence
+    num_accounts = Account.count
+    firm = Firm.find(1)
+    assert firm.has_account?
+    firm.destroy            
+    assert_equal num_accounts - 1, Account.count
+  end
+
+  def test_has_one_dependence_with_missing_association
+    Account.destroy_all
+    firm = Firm.find(1)
+    assert !firm.has_account?
+    firm.destroy
+  end
+
+  def test_belongs_to
+    assert_equal companies(:first_firm).name, Client.find(3).firm.name
+    assert Client.find(3).has_firm?, "Microsoft should have a firm"
+    # assert !Company.find(1).has_firm?, "37signals shouldn't have a firm"
+  end
+
+  def test_belongs_to_with_different_class_name
+    assert_equal Company.find(1).name, Company.find(3).firm_with_other_name.name
+    assert Company.find(3).has_firm_with_other_name?, "Microsoft should have a firm"
+  end
+
+  def test_belongs_to_with_condition
+    assert_equal Company.find(1).name, Company.find(3).firm_with_condition.name
+    assert Company.find(3).has_firm_with_condition?, "Microsoft should have a firm"
+  end
+
+  def test_belongs_to_equality
+    assert Company.find(3).firm?(Company.find(1)), "Microsoft should have 37signals as firm"
+    assert_raises(RuntimeError) { !Company.find(3).firm?(Company.find(3)) } # "Summit shouldn't have itself as firm"
+  end
+
+  def test_has_one
+    assert companies(:first_firm).account?(Account.find(1))
+    assert_equal Account.find(1).credit_limit, companies(:first_firm).account.credit_limit
+    assert companies(:first_firm).has_account?, "37signals should have an account"
+    assert Account.find(1).firm?(companies(:first_firm)), "37signals account should be able to backtrack"
+    assert Account.find(1).has_firm?, "37signals account should be able to backtrack"
+
+    assert !Account.find(2).has_firm?, "Unknown isn't linked"
+    assert !Account.find(2).firm?(companies(:first_firm)), "Unknown isn't linked"
+  end
+
+  def test_has_many_dependence_on_account    
+    num_accounts = Account.count
+    companies(:first_firm).destroy
+    assert_equal num_accounts - 1, Account.count
+  end
+
+  def test_find_in
+    assert_equal Client.find(2).name, companies(:first_firm).find_in_clients(2).name
+    assert_raises(ActiveRecord::RecordNotFound) { companies(:first_firm).find_in_clients(6) }
+  end
+
+  def test_force_reload
+    firm = Firm.new("name" => "A New Firm, Inc")
+    firm.save
+    firm.clients.each {|c|} # forcing to load all clients
+    assert firm.clients.empty?, "New firm shouldn't have client objects"
+    assert !firm.has_clients?, "New firm shouldn't have clients"
+    assert_equal 0, firm.clients_count, "New firm should have 0 clients"
+
+    client = Client.new("name" => "TheClient.com", "firm_id" => firm.id)
+    client.save
+
+    assert firm.clients.empty?, "New firm should have cached no client objects"
+    assert !firm.has_clients?, "New firm should have cached a no-clients response"
+    assert_equal 0, firm.clients_count, "New firm should have cached 0 clients count"
+
+    assert !firm.clients(true).empty?, "New firm should have reloaded client objects"
+    assert firm.has_clients?(true), "New firm should have reloaded with a have-clients response"
+    assert_equal 1, firm.clients_count(true), "New firm should have reloaded clients count"
+  end
+
+  def test_included_in_collection
+    assert companies(:first_firm).clients.include?(Client.find(2))
+  end
+
+  def test_build_to_collection
+    assert_equal 1, companies(:first_firm).clients_of_firm_count
+    new_client = companies(:first_firm).build_to_clients_of_firm("name" => "Another Client")
+    assert_equal "Another Client", new_client.name
+    assert new_client.save
+
+    assert new_client.firm?(companies(:first_firm))
+    assert_equal 2, companies(:first_firm).clients_of_firm_count(true)
+  end
+
+  def test_create_in_collection
+    assert_equal companies(:first_firm).create_in_clients_of_firm("name" => "Another Client"), companies(:first_firm).clients_of_firm(true).last
+  end
+
+  def test_has_and_belongs_to_many
+    david = Developer.find(1)
+    assert david.has_projects?
+    assert_equal 2, david.projects_count
+
+    active_record = Project.find(1)
+    assert active_record.has_developers?
+    assert_equal 3, active_record.developers_count
+    assert active_record.developers.include?(david)
+  end
+
+  def test_has_and_belongs_to_many_removing
+    david = Developer.find(1)
+    active_record = Project.find(1)
+
+    david.remove_projects(active_record)
+
+    assert_equal 1, david.projects_count
+    assert_equal 2, active_record.developers_count
+  end
+
+  def test_has_and_belongs_to_many_zero
+    david = Developer.find(1)
+    david.remove_projects(Project.find_all)
+
+    assert_equal 0, david.projects_count
+    assert !david.has_projects?
+  end
+
+  def test_has_and_belongs_to_many_adding
+    jamis = Developer.find(2)
+    action_controller = Project.find(2)
+
+    jamis.add_projects(action_controller)
+
+    assert_equal 2, jamis.projects_count
+    assert_equal 2, action_controller.developers_count
+  end
+
+  def test_has_and_belongs_to_many_adding_from_the_project
+    jamis = Developer.find(2)
+    action_controller = Project.find(2)
+
+    action_controller.add_developers(jamis)
+
+    assert_equal 2, jamis.projects_count
+    assert_equal 2, action_controller.developers_count
+  end
+
+  def test_has_and_belongs_to_many_adding_a_collection
+    aredridel = Developer.new("name" => "Aredridel")
+    aredridel.save
+
+    aredridel.add_projects([ Project.find(1), Project.find(2) ])
+    assert_equal 2, aredridel.projects_count
+  end
+
+  def test_belongs_to_counter
+    topic = Topic.create("title" => "Apple", "content" => "hello world")
+    assert_equal 0, topic.send(:read_attribute, "replies_count"), "No replies yet"
+
+    reply = topic.create_in_replies("title" => "I'm saying no!", "content" => "over here")
+    assert_equal 1, Topic.find(topic.id).send(:read_attribute, "replies_count"), "First reply created"
+
+    reply.destroy
+    assert_equal 0, Topic.find(topic.id).send(:read_attribute, "replies_count"), "First reply deleted"
+  end
+
+  def test_natural_assignment_of_has_one
+    apple = Firm.create("name" => "Apple")
+    citibank = Account.create("credit_limit" => 10)
+    apple.account = citibank
+    assert_equal apple.id, citibank.firm_id
+  end
+
+  def test_natural_assignment_of_belongs_to
+    apple = Firm.create("name" => "Apple")
+    citibank = Account.create("credit_limit" => 10)
+    citibank.firm = apple
+    assert_equal apple.id, citibank.firm_id
+  end
+
+  def test_natural_assignment_of_has_many
+    apple = Firm.create("name" => "Apple")
+    natural = Client.create("name" => "Natural Company")
+    apple.clients << natural
+    assert_equal apple.id, natural.firm_id
+    assert_equal Client.find(natural.id), Firm.find(apple.id).clients.find(natural.id)
+    apple.clients.delete natural
+    assert_raises(ActiveRecord::RecordNotFound) {
+      Firm.find(apple.id).clients.find(natural.id)
+    }
+  end
+
+  def test_natural_adding_of_has_and_belongs_to_many
+    rails = Project.create("name" => "Rails")
+    ap = Project.create("name" => "Action Pack")
+    john = Developer.create("name" => "John")
+    mike = Developer.create("name" => "Mike")
+    rails.developers << john
+    rails.developers << mike
+
+    assert_equal Developer.find(john.id), Project.find(rails.id).developers.find(john.id)
+    assert_equal Developer.find(mike.id), Project.find(rails.id).developers.find(mike.id)
+    assert_equal Project.find(rails.id), Developer.find(mike.id).projects.find(rails.id)
+    assert_equal Project.find(rails.id), Developer.find(john.id).projects.find(rails.id)
+    ap.developers << john
+    assert_equal Developer.find(john.id), Project.find(ap.id).developers.find(john.id)
+    assert_equal Project.find(ap.id), Developer.find(john.id).projects.find(ap.id)
+
+    ap.developers.delete john
+    assert_raises(ActiveRecord::RecordNotFound) {
+      Project.find(ap.id).developers.find(john.id)
+    }
+    assert_raises(ActiveRecord::RecordNotFound) {
+      Developer.find(john.id).projects.find(ap.id)
+    }
+  end
+
+  def test_storing_in_pstore
+    require "pstore"
+    require "tmpdir"
+    apple = Firm.create("name" => "Apple")
+    natural = Client.new("name" => "Natural Company")
+    apple.clients << natural
+
+    db = PStore.new(File.join(Dir.tmpdir, "ar-pstore-association-test"))
+    db.transaction do
+      db["apple"] = apple
+    end
+
+    db = PStore.new(File.join(Dir.tmpdir, "ar-pstore-association-test"))
+    db.transaction do
+      assert_equal "Natural Company", db["apple"].clients.first.name
+    end
+  end
+
+  def test_has_many_find_all
+    assert_equal 2, Firm.find_first.find_all_in_clients("#{QUOTED_TYPE} = 'Client'").length
+    assert_equal 1, Firm.find_first.find_all_in_clients("name = 'Summit'").length
+  end
+
+  def test_has_one
+    assert companies(:first_firm).account?(Account.find(1))
+    assert companies(:first_firm).has_account?, "37signals should have an account"
+    assert Account.find(1).firm?(companies(:first_firm)), "37signals account should be able to backtrack"
+    assert Account.find(1).has_firm?, "37signals account should be able to backtrack"
+
+    assert !Account.find(2).has_firm?, "Unknown isn't linked"
+    assert !Account.find(2).firm?(companies(:first_firm)), "Unknown isn't linked"
+  end
+
+  def test_has_one_build
+    firm = Firm.new("name" => "GlobalMegaCorp")
+    assert firm.save
+
+    account = firm.build_account("credit_limit" => 1000)
+    assert account.save
+    assert_equal account, firm.account
+  end
+
+  def test_has_one_failing_build_association
+    firm = Firm.new("name" => "GlobalMegaCorp")
+    firm.save
+    
+    account = firm.build_account
+    assert !account.save
+    assert_equal "can't be empty", account.errors.on("credit_limit")
+  end
+
+  def test_has_one_create
+    firm = Firm.new("name" => "GlobalMegaCorp")
+    firm.save
+    assert_equal firm.create_account("credit_limit" => 1000), firm.account
+  end
+end

vendor/rails/activerecord/test/deprecated_finder_test.rb

@@ -0,0 +1,134 @@
+require 'abstract_unit'
+require 'fixtures/company'
+require 'fixtures/topic'
+require 'fixtures/entrant'
+require 'fixtures/developer'
+
+class DeprecatedFinderTest < Test::Unit::TestCase
+  fixtures :companies, :topics, :entrants, :developers
+
+  def test_find_all_with_limit
+    entrants = Entrant.find_all nil, "id ASC", 2
+    
+    assert_equal(2, entrants.size)
+    assert_equal(entrants(:first).name, entrants.first.name)
+  end
+
+  def test_find_all_with_prepared_limit_and_offset
+    entrants = Entrant.find_all nil, "id ASC", [2, 1]
+
+    assert_equal(2, entrants.size)
+    assert_equal(entrants(:second).name, entrants.first.name)
+  end
+
+  def test_find_first
+    first = Topic.find_first "title = 'The First Topic'"
+    assert_equal(topics(:first).title, first.title)
+  end
+  
+  def test_find_first_failing
+    first = Topic.find_first "title = 'The First Topic!'"
+    assert_nil(first)
+  end
+  
+  def test_deprecated_find_on_conditions
+    assert Topic.find_on_conditions(1, ["approved = ?", false])
+    assert_raises(ActiveRecord::RecordNotFound) { Topic.find_on_conditions(1, ["approved = ?", true]) }
+  end
+  
+  def test_condition_interpolation
+    assert_kind_of Firm, Company.find_first(["name = '%s'", "37signals"])
+    assert_nil Company.find_first(["name = '%s'", "37signals!"])
+    assert_nil Company.find_first(["name = '%s'", "37signals!' OR 1=1"])
+    assert_kind_of Time, Topic.find_first(["id = %d", 1]).written_on
+  end
+
+  def test_bind_variables
+    assert_kind_of Firm, Company.find_first(["name = ?", "37signals"])
+    assert_nil Company.find_first(["name = ?", "37signals!"])
+    assert_nil Company.find_first(["name = ?", "37signals!' OR 1=1"])
+    assert_kind_of Time, Topic.find_first(["id = ?", 1]).written_on
+    assert_raises(ActiveRecord::PreparedStatementInvalid) {
+      Company.find_first(["id=? AND name = ?", 2])
+    }
+    assert_raises(ActiveRecord::PreparedStatementInvalid) {
+	   Company.find_first(["id=?", 2, 3, 4])
+    }
+  end
+  
+  def test_bind_variables_with_quotes
+    Company.create("name" => "37signals' go'es agains")
+    assert Company.find_first(["name = ?", "37signals' go'es agains"])
+  end
+
+  def test_named_bind_variables_with_quotes
+    Company.create("name" => "37signals' go'es agains")
+    assert Company.find_first(["name = :name", {:name => "37signals' go'es agains"}])
+  end
+
+  def test_named_bind_variables
+    assert_equal '1', bind(':a', :a => 1) # ' ruby-mode
+    assert_equal '1 1', bind(':a :a', :a => 1)  # ' ruby-mode
+  
+    assert_kind_of Firm, Company.find_first(["name = :name", { :name => "37signals" }])
+    assert_nil Company.find_first(["name = :name", { :name => "37signals!" }])
+    assert_nil Company.find_first(["name = :name", { :name => "37signals!' OR 1=1" }])
+    assert_kind_of Time, Topic.find_first(["id = :id", { :id => 1 }]).written_on
+  end
+
+  def test_count
+    assert_equal(0, Entrant.count("id > 3"))
+    assert_equal(1, Entrant.count(["id > ?", 2]))
+    assert_equal(2, Entrant.count(["id > ?", 1]))
+  end
+
+  def test_count_by_sql
+    assert_equal(0, Entrant.count_by_sql("SELECT COUNT(*) FROM entrants WHERE id > 3"))
+    assert_equal(1, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 2]))
+    assert_equal(2, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 1]))
+  end
+
+  def test_find_all_with_limit
+    first_five_developers = Developer.find_all nil, 'id ASC', 5
+    assert_equal 5, first_five_developers.length
+    assert_equal 'David', first_five_developers.first.name
+    assert_equal 'fixture_5', first_five_developers.last.name
+    
+    no_developers = Developer.find_all nil, 'id ASC', 0
+    assert_equal 0, no_developers.length
+    
+    assert_equal first_five_developers, Developer.find_all(nil, 'id ASC', [5])
+    assert_equal no_developers, Developer.find_all(nil, 'id ASC', [0])
+  end
+
+  def test_find_all_with_limit_and_offset
+    first_three_developers = Developer.find_all nil, 'id ASC', [3, 0]
+    second_three_developers = Developer.find_all nil, 'id ASC', [3, 3]
+    last_two_developers = Developer.find_all nil, 'id ASC', [2, 8]
+    
+    assert_equal 3, first_three_developers.length
+    assert_equal 3, second_three_developers.length
+    assert_equal 2, last_two_developers.length
+    
+    assert_equal 'David', first_three_developers.first.name
+    assert_equal 'fixture_4', second_three_developers.first.name
+    assert_equal 'fixture_9', last_two_developers.first.name
+  end
+
+  def test_find_all_by_one_attribute_with_options
+    topics = Topic.find_all_by_content("Have a nice day", "id DESC")
+    assert topics(:first), topics.last
+
+    topics = Topic.find_all_by_content("Have a nice day", "id DESC")
+    assert topics(:first), topics.first
+  end
+
+  protected
+    def bind(statement, *vars)
+      if vars.first.is_a?(Hash)
+        ActiveRecord::Base.send(:replace_named_bind_variables, statement, vars.first)
+      else
+        ActiveRecord::Base.send(:replace_bind_variables, statement, vars)
+      end
+    end
+end