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Merge branch 'master' of git://github.com/couchrest/couchrest_model

master
Lucas Renan 2011-05-23 08:48:10 -03:00
parent a400d46333 fcd9e2ba8e
commit ccafde77ab
9 changed files with 184 additions and 73 deletions
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7
history.md
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@ -2,13 +2,18 @@
## 1.1.0 - 2011-05-XX
* New Features
* Properties with a nil value are now no longer sent to the database.
* Now possible to build new objects via CastedArray#build
* Minor fixes
* #as_json now correctly uses ActiveSupports methods.
* nil properties are now no longer sent in the document body.
* Rails 3.1 support (Peter Williams)
* Initialization blocks when creating new models (Peter Williams)
* Removed railties dependency (DAddYE)
* DesignDoc cache refreshed if a database is deleted.
* Fixing dirty tracking on collection_of association.
* Uniqueness Validation views created on initialization, not on demand!
## 1.1.0.beta5 - 2011-04-30

104
lib/couchrest/model/associations.rb
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@ -153,7 +153,7 @@ module CouchRest
def #{attrib}(reload = false)
return @#{attrib} unless @#{attrib}.nil? or reload
ary = self.#{options[:foreign_key]}.collect{|i| #{options[:proxy]}.get(i)}
@#{attrib} = ::CouchRest::CollectionOfProxy.new(ary, self, '#{options[:foreign_key]}')
@#{attrib} = ::CouchRest::Model::CollectionOfProxy.new(ary, find_property('#{options[:foreign_key]}'), self)
end
EOS
end
@ -161,7 +161,7 @@ module CouchRest
def create_collection_of_setter(attrib, options)
class_eval <<-EOS, __FILE__, __LINE__ + 1
def #{attrib}=(value)
@#{attrib} = ::CouchRest::CollectionOfProxy.new(value, self, '#{options[:foreign_key]}')
@#{attrib} = ::CouchRest::Model::CollectionOfProxy.new(value, find_property('#{options[:foreign_key]}'), self)
end
EOS
end
@ -169,67 +169,63 @@ module CouchRest
end
end
end
# Special proxy for a collection of items so that adding and removing
# to the list automatically updates the associated property.
class CollectionOfProxy < Array
attr_accessor :property
attr_accessor :casted_by
# Special proxy for a collection of items so that adding and removing
# to the list automatically updates the associated property.
class CollectionOfProxy < CastedArray
def initialize(array, casted_by, property)
self.property = property
self.casted_by = casted_by
(array ||= []).compact!
casted_by[property.to_s] = [] # replace the original array!
array.compact.each do |obj|
check_obj(obj)
casted_by[property.to_s] << obj.id
def initialize(array, property, parent)
(array ||= []).compact!
super(array, property, parent)
casted_by[casted_by_property.to_s] = [] # replace the original array!
array.compact.each do |obj|
check_obj(obj)
casted_by[casted_by_property.to_s] << obj.id
end
end
def << obj
check_obj(obj)
casted_by[casted_by_property.to_s] << obj.id
super(obj)
end
def push(obj)
check_obj(obj)
casted_by[casted_by_property.to_s].push obj.id
super(obj)
end
def unshift(obj)
check_obj(obj)
casted_by[casted_by_property.to_s].unshift obj.id
super(obj)
end
super(array)
end
def << obj
check_obj(obj)
casted_by[property.to_s] << obj.id
super(obj)
end
def push(obj)
check_obj(obj)
casted_by[property.to_s].push obj.id
super(obj)
end
def unshift(obj)
check_obj(obj)
casted_by[property.to_s].unshift obj.id
super(obj)
end
def []= index, obj
check_obj(obj)
casted_by[property.to_s][index] = obj.id
super(index, obj)
end
def []= index, obj
check_obj(obj)
casted_by[casted_by_property.to_s][index] = obj.id
super(index, obj)
end
def pop
casted_by[property.to_s].pop
super
end
def shift
casted_by[property.to_s].shift
super
end
def pop
casted_by[casted_by_property.to_s].pop
super
end
def shift
casted_by[casted_by_property.to_s].shift
super
end
protected
protected
def check_obj(obj)
raise "Object cannot be added to #{casted_by.class.to_s}##{casted_by_property.to_s} collection unless saved" if obj.new?
end
def check_obj(obj)
raise "Object cannot be added to #{casted_by.class.to_s}##{property.to_s} collection unless saved" if obj.new?
end
end
end

6
lib/couchrest/model/casted_array.rb
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@ -50,6 +50,12 @@ module CouchRest::Model
super
end
def build(*args)
obj = casted_by_property.build(*args)
self.push(obj)
obj
end
protected
def instantiate_and_cast(obj, change = true)

12
lib/couchrest/model/property.rb
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@ -64,6 +64,18 @@ module CouchRest::Model
end
end
# Initialize a new instance of a property's type ready to be
# used. If a proc is defined for the init method, it will be used instead of
# a normal call to the class.
def build(*args)
raise StandardError, "Cannot build property without a class" if @type_class.nil?
if @init_method.is_a?(Proc)
@init_method.call(*args)
else
@type_class.send(@init_method, *args)
end
end
private
def associate_casted_value_to_parent(parent, value)

3
lib/couchrest/model/typecast.rb
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@ -14,8 +14,7 @@ module CouchRest
elsif [String, TrueClass, Integer, Float, BigDecimal, DateTime, Time, Date, Class].include?(klass)
send('typecast_to_'+klass.to_s.downcase, value)
else
# Allow the init_method to be defined as a Proc for advanced conversion
property.init_method.is_a?(Proc) ? property.init_method.call(value) : klass.send(property.init_method, value)
property.build(value)
end
end

43
lib/couchrest/model/validations/uniqueness.rb
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@ -3,7 +3,7 @@
module CouchRest
module Model
module Validations
# Validates if a field is unique
class UniquenessValidator < ActiveModel::EachValidator
@ -11,29 +11,33 @@ module CouchRest
# or add one if necessary.
def setup(model)
@model = model
if options[:view].blank?
attributes.each do |attribute|
opts = merge_view_options(attribute)
if model.respond_to?(:has_view?) && !model.has_view?(opts[:view_name])
opts[:keys] << {:allow_nil => true}
model.view_by(*opts[:keys])
end
end
end
end
def validate_each(document, attribute, value)
keys = [attribute]
unless options[:scope].nil?
keys = (options[:scope].is_a?(Array) ? options[:scope] : [options[:scope]]) + keys
end
values = keys.map{|k| document.send(k)}
values = values.first if values.length == 1
opts = merge_view_options(attribute)
view_name = options[:view].nil? ? "by_#{keys.join('_and_')}" : options[:view]
values = opts[:keys].map{|k| document.send(k)}
values = values.first if values.length == 1
model = (document.respond_to?(:model_proxy) && document.model_proxy ? document.model_proxy : @model)
# Determine the base of the search
base = options[:proxy].nil? ? model : document.instance_eval(options[:proxy])
base = opts[:proxy].nil? ? model : document.instance_eval(opts[:proxy])
if base.respond_to?(:has_view?) && !base.has_view?(view_name)
raise "View #{document.class.name}.#{options[:view]} does not exist!" unless options[:view].nil?
keys << {:allow_nil => true}
model.view_by(*keys)
if base.respond_to?(:has_view?) && !base.has_view?(opts[:view_name])
raise "View #{document.class.name}.#{opts[:view_name]} does not exist for validation!"
end
rows = base.view(view_name, :key => values, :limit => 2, :include_docs => false)['rows']
rows = base.view(opts[:view_name], :key => values, :limit => 2, :include_docs => false)['rows']
return if rows.empty?
unless document.new?
@ -47,6 +51,17 @@ module CouchRest
end
end
private
def merge_view_options(attr)
keys = [attr]
keys.unshift(*options[:scope]) unless options[:scope].nil?
view_name = options[:view].nil? ? "by_#{keys.join('_and_')}" : options[:view]
options.merge({:keys => keys, :view_name => view_name})
end
end
end

29
spec/couchrest/assocations_spec.rb
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@ -101,7 +101,7 @@ describe "Assocations" do
it "should create an associated property and collection proxy" do
@invoice.respond_to?('entry_ids').should be_true
@invoice.respond_to?('entry_ids=').should be_true
@invoice.entries.class.should eql(::CouchRest::CollectionOfProxy)
@invoice.entries.class.should eql(::CouchRest::Model::CollectionOfProxy)
end
it "should allow replacement of objects" do
@ -154,6 +154,33 @@ describe "Assocations" do
@invoice.entries.should be_empty
end
# Account for dirty tracking
describe "dirty tracking" do
it "should register changes on push" do
@invoice.changed?.should be_false
@invoice.entries << @entries[0]
@invoice.changed?.should be_true
end
it "should register changes on pop" do
@invoice.entries << @entries[0]
@invoice.save
@invoice.changed?.should be_false
@invoice.entries.pop
@invoice.changed?.should be_true
end
it "should register id changes on push" do
@invoice.entry_ids << @entries[0].id
@invoice.changed?.should be_true
end
it "should register id changes on pop" do
@invoice.entry_ids << @entries[0].id
@invoice.save
@invoice.changed?.should be_false
@invoice.entry_ids.pop
@invoice.changed?.should be_true
end
end
describe "proxy" do
it "should ensure new entries to proxy are matched" do

34
spec/couchrest/property_spec.rb
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@ -358,6 +358,28 @@ describe "Property Class" do
property.init_method.should eql('parse')
end
describe "#build" do
it "should allow instantiation of new object" do
property = CouchRest::Model::Property.new(:test, Date)
obj = property.build(2011, 05, 21)
obj.should eql(Date.new(2011, 05, 21))
end
it "should use init_method if provided" do
property = CouchRest::Model::Property.new(:test, Date, :init_method => 'parse')
obj = property.build("2011-05-21")
obj.should eql(Date.new(2011, 05, 21))
end
it "should use init_method Proc if provided" do
property = CouchRest::Model::Property.new(:test, Date, :init_method => Proc.new{|v| Date.parse(v)})
obj = property.build("2011-05-21")
obj.should eql(Date.new(2011, 05, 21))
end
it "should raise error if no class" do
property = CouchRest::Model::Property.new(:test)
lambda { property.build }.should raise_error(StandardError, /Cannot build/)
end
end
## Property Casting method. More thoroughly tested in typecast_spec.
describe "casting" do
@ -386,6 +408,18 @@ describe "Property Class" do
property.cast(parent, ["2010-06-01", "2010-06-02"]).class.should eql(CouchRest::Model::CastedArray)
end
it "should allow instantion of model via CastedArray#build" do
property = CouchRest::Model::Property.new(:dates, [Date])
parent = Article.new
ary = property.cast(parent, [])
obj = ary.build(2011, 05, 21)
ary.length.should eql(1)
ary.first.should eql(Date.new(2011, 05, 21))
obj = ary.build(2011, 05, 22)
ary.length.should eql(2)
ary.last.should eql(Date.new(2011, 05, 22))
end
it "should raise and error if value is array when type is not" do
property = CouchRest::Model::Property.new(:test, Date)
parent = mock("FooClass")

19
spec/couchrest/validations_spec.rb
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@ -16,7 +16,11 @@ describe "Validations" do
before(:all) do
@objs = ['title 1', 'title 2', 'title 3'].map{|t| WithUniqueValidation.create(:title => t)}
end
it "should create a new view if none defined before performing" do
WithUniqueValidation.has_view?(:by_title).should be_true
end
it "should validate a new unique document" do
@obj = WithUniqueValidation.create(:title => 'title 4')
@obj.new?.should_not be_true
@ -35,6 +39,7 @@ describe "Validations" do
@obj.should be_valid
end
it "should allow own view to be specified" do
# validates_uniqueness_of :code, :view => 'all'
WithUniqueValidationView.create(:title => 'title 1', :code => '1234')
@ -50,6 +55,13 @@ describe "Validations" do
}.should raise_error
end
it "should not try to create a defined view" do
WithUniqueValidationView.validates_uniqueness_of :title, :view => 'fooobar'
WithUniqueValidationView.has_view?('fooobar').should be_false
WithUniqueValidationView.has_view?('by_title').should be_false
end
it "should not try to create new view when already defined" do
@obj = @objs[1]
@obj.class.should_not_receive('view_by')
@ -60,6 +72,11 @@ describe "Validations" do
end
context "with a proxy parameter" do
it "should create a new view despite proxy" do
WithUniqueValidationProxy.has_view?(:by_title).should be_true
end
it "should be used" do
@obj = WithUniqueValidationProxy.new(:title => 'test 6')
proxy = @obj.should_receive('proxy').and_return(@obj.class)