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

history.md

@@ -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

lib/couchrest/model/associations.rb

@@ -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
+    # Special proxy for a collection of items so that adding and removing
-  # to the list automatically updates the associated property.
+    # to the list automatically updates the associated property.
-  class CollectionOfProxy < Array
+    class CollectionOfProxy < CastedArray
-    attr_accessor :property
-    attr_accessor :casted_by
 
-    def initialize(array, casted_by, property)
+      def initialize(array, property, parent)
-      self.property = property
+        (array ||= []).compact!
-      self.casted_by = casted_by
+        super(array, property, parent)
-      (array ||= []).compact!
+        casted_by[casted_by_property.to_s] = [] # replace the original array!
-      casted_by[property.to_s] = [] # replace the original array!
+        array.compact.each do |obj|
-      array.compact.each do |obj|
+          check_obj(obj)
-        check_obj(obj)
+          casted_by[casted_by_property.to_s] << obj.id
-        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
+      def []= index, obj
-      check_obj(obj)
+        check_obj(obj)
-      casted_by[property.to_s][index] = obj.id
+        casted_by[casted_by_property.to_s][index] = obj.id
-      super(index, obj)
+        super(index, obj)
-    end
+      end
 
-    def pop
+      def pop
-      casted_by[property.to_s].pop
+        casted_by[casted_by_property.to_s].pop
-      super
+        super
-    end
+      end
-    
+      
-    def shift
+      def shift
-      casted_by[property.to_s].shift
+        casted_by[casted_by_property.to_s].shift
-      super
+        super
-    end
+      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

lib/couchrest/model/casted_array.rb

@@ -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)

lib/couchrest/model/property.rb

@@ -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)

lib/couchrest/model/typecast.rb

@@ -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.build(value)
-          property.init_method.is_a?(Proc) ? property.init_method.call(value) : klass.send(property.init_method, value)
         end
       end
 

lib/couchrest/model/validations/uniqueness.rb

@@ -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]
+          opts = merge_view_options(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
 
-          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)
+          if base.respond_to?(:has_view?) && !base.has_view?(opts[:view_name])
-            raise "View #{document.class.name}.#{options[:view]} does not exist!" unless options[:view].nil?
+            raise "View #{document.class.name}.#{opts[:view_name]} does not exist for validation!"
-            keys << {:allow_nil => true}
-            model.view_by(*keys)
           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

spec/couchrest/assocations_spec.rb

@@ -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

spec/couchrest/property_spec.rb

@@ -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")

spec/couchrest/validations_spec.rb

@@ -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)