Created
May 13, 2011 03:24
-
-
Save AquaGeek/969910 to your computer and use it in GitHub Desktop.
Rails Lighthouse ticket #950
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| From 64dc359547f205eccf78c63540bcb0f8db91fc85 Mon Sep 17 00:00:00 2001 | |
| From: Eloy Duran <eloy.de.enige@gmail.com> | |
| Date: Fri, 5 Dec 2008 13:22:23 +0100 | |
| Subject: [PATCH] Updated for current HEAD. | |
| --- | |
| activerecord/lib/active_record.rb | 1 + | |
| activerecord/lib/active_record/aggregations.rb | 2 + | |
| .../lib/active_record/attribute_decorator.rb | 187 +++++++++++++++++ | |
| activerecord/lib/active_record/base.rb | 2 + | |
| activerecord/lib/active_record/reflection.rb | 19 ++ | |
| activerecord/test/cases/aggregations_test.rb | 16 +- | |
| .../test/cases/attribute_decorator_test.rb | 216 ++++++++++++++++++++ | |
| activerecord/test/cases/base_test.rb | 20 ++ | |
| activerecord/test/cases/reflection_test.rb | 25 +++ | |
| activerecord/test/models/artist.rb | 81 ++++++++ | |
| activerecord/test/models/customer.rb | 12 +- | |
| activerecord/test/models/developer.rb | 14 +- | |
| activerecord/test/schema/schema.rb | 8 + | |
| 13 files changed, 589 insertions(+), 14 deletions(-) | |
| create mode 100644 activerecord/lib/active_record/attribute_decorator.rb | |
| create mode 100644 activerecord/test/cases/attribute_decorator_test.rb | |
| create mode 100644 activerecord/test/models/artist.rb | |
| diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb | |
| index 348e5b9..5aa3cac 100644 | |
| --- a/activerecord/lib/active_record.rb | |
| +++ b/activerecord/lib/active_record.rb | |
| @@ -41,6 +41,7 @@ module ActiveRecord | |
| autoload :ConnectionNotEstablished, 'active_record/base' | |
| autoload :Aggregations, 'active_record/aggregations' | |
| + autoload :AttributeDecorator, 'active_record/attribute_decorator' | |
| autoload :AssociationPreload, 'active_record/association_preload' | |
| autoload :Associations, 'active_record/associations' | |
| autoload :AttributeMethods, 'active_record/attribute_methods' | |
| diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb | |
| index 1eefebb..04a67ae 100644 | |
| --- a/activerecord/lib/active_record/aggregations.rb | |
| +++ b/activerecord/lib/active_record/aggregations.rb | |
| @@ -192,6 +192,8 @@ module ActiveRecord | |
| # :converter => Proc.new { |ip| ip.is_a?(Integer) ? IPAddr.new(ip, Socket::AF_INET) : IPAddr.new(ip.to_s) } | |
| # | |
| def composed_of(part_id, options = {}, &block) | |
| + ActiveSupport::Deprecation.warn("ActiveRecord::Aggregations::composed_of has been deprecated. Please use ActiveRecord::AttributeDecorator::attribute_decorator.") | |
| + | |
| options.assert_valid_keys(:class_name, :mapping, :allow_nil, :constructor, :converter) | |
| name = part_id.id2name | |
| diff --git a/activerecord/lib/active_record/attribute_decorator.rb b/activerecord/lib/active_record/attribute_decorator.rb | |
| new file mode 100644 | |
| index 0000000..66ee4d8 | |
| --- /dev/null | |
| +++ b/activerecord/lib/active_record/attribute_decorator.rb | |
| @@ -0,0 +1,187 @@ | |
| +module ActiveRecord | |
| + module AttributeDecorator #:nodoc: | |
| + def self.included(klass) | |
| + klass.extend ClassMethods | |
| + end | |
| + | |
| + def clear_attribute_decorator_cache | |
| + self.class.reflect_on_all_attribute_decorators.each do |attribute_decorator| | |
| + instance_variable_set "@#{attribute_decorator.name}_before_type_cast", nil | |
| + end unless new_record? | |
| + end | |
| + | |
| + module ClassMethods | |
| + # Adds reader and writer methods for decorating one or more attributes: | |
| + # <tt>attribute_decorator :date_of_birth</tt> adds <tt>date_of_birth</tt> and <tt>date_of_birth=(new_date_of_birth)</tt> methods. | |
| + # | |
| + # Options are: | |
| + # * <tt>:class</tt> - specify the decorator class. | |
| + # * <tt>:class_name</tt> - specify the class name of the decorator class, | |
| + # this should be used if, at the time of loading the model class, the decorator class is not yet available. | |
| + # * <tt>:decorates</tt> - specifies the attributes that should be wrapped by the decorator class. | |
| + # Takes an array of attributes or a single attribute. If none is specified the same name as the name of the attribute_decorator is assumed. | |
| + # | |
| + # The decorator class should implement a class method called <tt>parse</tt>, which takes 1 argument. | |
| + # In that method your decorator class is responsible for returning an instance of itself with the attribute(s) parsed and assigned. | |
| + # | |
| + # Your decorator class’s initialize method should take as it’s arguments the attributes that were specified | |
| + # to the <tt>:decorates</tt> option and in the same order as they were specified. | |
| + # You should also implement a <tt>to_a</tt> method which should return the parsed values as an array, | |
| + # again in the same order as specified with the <tt>:decorates</tt> option. | |
| + # | |
| + # If you wish to use <tt>validates_decorator</tt>, your decorator class should also implement a <tt>valid?</tt> instance method, | |
| + # which is responsible for checking the validity of the value(s). See <tt>validates_decorator</tt> for more info. | |
| + # | |
| + # class CompositeDate | |
| + # attr_accessor :day, :month, :year | |
| + # | |
| + # # Gets the value from Artist#date_of_birth= and will return a CompositeDate instance with the :day, :month and :year attributes set. | |
| + # def self.parse(value) | |
| + # day, month, year = value.scan(/(\d+)-(\d+)-(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # | |
| + # # Notice that the order of arguments is the same as specified with the :decorates option. | |
| + # def initialize(day, month, year) | |
| + # @day, @month, @year = day, month, year | |
| + # end | |
| + # | |
| + # # Here we return the parsed values in the same order as specified with the :decorates option. | |
| + # def to_a | |
| + # [@day, @month, @year] | |
| + # end | |
| + # | |
| + # # Here we return a string representation of the value, this will for instance be used by the form helpers. | |
| + # def to_s | |
| + # "#{@day}-#{@month}-#{@year}" | |
| + # end | |
| + # | |
| + # # Returns wether or not this CompositeDate instance is valid. | |
| + # def valid? | |
| + # @day != 0 && @month != 0 && @year != 0 | |
| + # end | |
| + # end | |
| + # | |
| + # class Artist < ActiveRecord::Base | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| + # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # end | |
| + # | |
| + # Option examples: | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| + # attribute_decorator :gps_location, :class_name => 'GPSCoordinator', :decorates => :location | |
| + # attribute_decorator :balance, :class_name => 'Money' | |
| + # attribute_decorator :english_date_of_birth, :class => (Class.new(CompositeDate) do | |
| + # # This is a anonymous subclass of CompositeDate that supports the date in English order | |
| + # def to_s | |
| + # "#{@month}/#{@day}/#{@year}" | |
| + # end | |
| + # | |
| + # def self.parse(value) | |
| + # month, day, year = value.scan(/(\d+)\/(\d+)\/(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # end) | |
| + def attribute_decorator(attr, options) | |
| + options.assert_valid_keys(:class, :class_name, :decorates) | |
| + | |
| + if options[:decorates].nil? | |
| + options[:decorates] = [attr] | |
| + elsif !options[:decorates].is_a?(Array) | |
| + options[:decorates] = [options[:decorates]] | |
| + end | |
| + | |
| + define_attribute_decorator_reader(attr, options) | |
| + define_attribute_decorator_writer(attr, options) | |
| + | |
| + create_reflection(:attribute_decorator, attr, options, self) | |
| + end | |
| + | |
| + # Validates wether the decorated attribute is valid by sending the decorator instance the <tt>valid?</tt> message. | |
| + # | |
| + # class CompositeDate | |
| + # attr_accessor :day, :month, :year | |
| + # | |
| + # def self.parse(value) | |
| + # day, month, year = value.scan(/(\d\d)-(\d\d)-(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # | |
| + # def initialize(day, month, year) | |
| + # @day, @month, @year = day, month, year | |
| + # end | |
| + # | |
| + # def to_a | |
| + # [@day, @month, @year] | |
| + # end | |
| + # | |
| + # def to_s | |
| + # "#{@day}-#{@month}-#{@year}" | |
| + # end | |
| + # | |
| + # # Returns wether or not this CompositeDate instance is valid. | |
| + # def valid? | |
| + # @day != 0 && @month != 0 && @year != 0 | |
| + # end | |
| + # end | |
| + # | |
| + # class Artist < ActiveRecord::Base | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| + # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # end | |
| + # | |
| + # artist = Artist.new | |
| + # artist.date_of_birth = '31-12-1999' | |
| + # artist.valid? # => true | |
| + # artist.date_of_birth = 'foo-bar-baz' | |
| + # artist.valid? # => false | |
| + # artist.errors.on(:date_of_birth) # => "is not a valid date" | |
| + # | |
| + # Configuration options: | |
| + # * <tt>:message</tt> - A custom error message (default is: "is invalid"). | |
| + # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>). | |
| + # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| + # occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The | |
| + # method, proc or string should return or evaluate to a true or false value. | |
| + # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| + # not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The | |
| + # method, proc or string should return or evaluate to a true or false value. | |
| + def validates_decorator(*attrs) | |
| + configuration = { :message => I18n.translate('active_record.error_messages')[:invalid], :on => :save } | |
| + configuration.update attrs.extract_options! | |
| + | |
| + invalid_keys = configuration.keys.select { |key| key == :allow_nil || key == :allow_blank } | |
| + raise ArgumentError, "Unknown key(s): #{ invalid_keys.join(', ') }" unless invalid_keys.empty? | |
| + | |
| + validates_each(attrs, configuration) do |record, attr, value| | |
| + record.errors.add(attr, configuration[:message]) unless record.send(attr).valid? | |
| + end | |
| + end | |
| + | |
| + private | |
| + | |
| + def define_attribute_decorator_reader(attr, options) | |
| + class_eval do | |
| + define_method(attr) do | |
| + (options[:class] ||= options[:class_name].constantize).new(*options[:decorates].map { |attribute| read_attribute(attribute) }) | |
| + end | |
| + end | |
| + end | |
| + | |
| + def define_attribute_decorator_writer(attr, options) | |
| + class_eval do | |
| + define_method("#{attr}_before_type_cast") do | |
| + instance_variable_get("@#{attr}_before_type_cast") || send(attr).to_s | |
| + end | |
| + | |
| + define_method("#{attr}=") do |value| | |
| + instance_variable_set("@#{attr}_before_type_cast", value) | |
| + values = (options[:class] ||= options[:class_name].constantize).parse(value).to_a | |
| + options[:decorates].each_with_index { |attribute, index| write_attribute attribute, values[index] } | |
| + value | |
| + end | |
| + end | |
| + end | |
| + end | |
| + end | |
| +end | |
| \ No newline at end of file | |
| diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb | |
| index a23518b..43b46f4 100755 | |
| --- a/activerecord/lib/active_record/base.rb | |
| +++ b/activerecord/lib/active_record/base.rb | |
| @@ -2578,6 +2578,7 @@ module ActiveRecord #:nodoc: | |
| # an exclusive row lock. | |
| def reload(options = nil) | |
| clear_aggregation_cache | |
| + clear_attribute_decorator_cache | |
| clear_association_cache | |
| @attributes.update(self.class.find(self.id, options).instance_variable_get('@attributes')) | |
| @attributes_cache = {} | |
| @@ -3014,6 +3015,7 @@ module ActiveRecord #:nodoc: | |
| extend QueryCache | |
| include Validations | |
| include Locking::Optimistic, Locking::Pessimistic | |
| + include AttributeDecorator | |
| include AttributeMethods | |
| include Dirty | |
| include Callbacks, Observing, Timestamp | |
| diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb | |
| index dbff4f2..3f3d3a1 100644 | |
| --- a/activerecord/lib/active_record/reflection.rb | |
| +++ b/activerecord/lib/active_record/reflection.rb | |
| @@ -17,6 +17,8 @@ module ActiveRecord | |
| reflection = klass.new(macro, name, options, active_record) | |
| when :composed_of | |
| reflection = AggregateReflection.new(macro, name, options, active_record) | |
| + when :attribute_decorator | |
| + reflection = AttributeDecoratorReflection.new(macro, name, options, active_record) | |
| end | |
| write_inheritable_hash :reflections, name => reflection | |
| reflection | |
| @@ -45,6 +47,19 @@ module ActiveRecord | |
| reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil | |
| end | |
| + # Returns an array of DecoratorReflection objects for all the attribute decorators in the class. | |
| + def reflect_on_all_attribute_decorators | |
| + reflections.values.select { |reflection| reflection.is_a?(AttributeDecoratorReflection) } | |
| + end | |
| + | |
| + # Returns the DecoratorReflection object for the named <tt>attribute decorator</tt> (use the symbol). Example: | |
| + # | |
| + # Account.reflect_on_decorator(:balance) # returns the balance DecoratorReflection | |
| + # | |
| + def reflect_on_attribute_decorator(attribute_decorator) | |
| + reflections[attribute_decorator].is_a?(AttributeDecoratorReflection) ? reflections[attribute_decorator] : nil | |
| + end | |
| + | |
| # Returns an array of AssociationReflection objects for all the associations in the class. If you only want to reflect on a | |
| # certain association type, pass in the symbol (<tt>:has_many</tt>, <tt>:has_one</tt>, <tt>:belongs_to</tt>) for that as the first parameter. | |
| # Example: | |
| @@ -133,6 +148,10 @@ module ActiveRecord | |
| class AggregateReflection < MacroReflection #:nodoc: | |
| end | |
| + # Holds all the meta-data about an aggregation as it was specified in the Active Record class. | |
| + class AttributeDecoratorReflection < MacroReflection #:nodoc: | |
| + end | |
| + | |
| # Holds all the meta-data about an association as it was specified in the Active Record class. | |
| class AssociationReflection < MacroReflection #:nodoc: | |
| # Returns the target association's class: | |
| diff --git a/activerecord/test/cases/aggregations_test.rb b/activerecord/test/cases/aggregations_test.rb | |
| index 4e0e1c7..62e27b3 100644 | |
| --- a/activerecord/test/cases/aggregations_test.rb | |
| +++ b/activerecord/test/cases/aggregations_test.rb | |
| @@ -1,5 +1,7 @@ | |
| require "cases/helper" | |
| -require 'models/customer' | |
| +ActiveSupport::Deprecation.silence do | |
| + require 'models/customer' | |
| +end | |
| class AggregationsTest < ActiveRecord::TestCase | |
| fixtures :customers | |
| @@ -152,12 +154,14 @@ class OverridingAggregationsTest < ActiveRecord::TestCase | |
| class Name; end | |
| class DifferentName; end | |
| - class Person < ActiveRecord::Base | |
| - composed_of :composed_of, :mapping => %w(person_first_name first_name) | |
| - end | |
| + ActiveSupport::Deprecation.silence do | |
| + class Person < ActiveRecord::Base | |
| + composed_of :composed_of, :mapping => %w(person_first_name first_name) | |
| + end | |
| - class DifferentPerson < Person | |
| - composed_of :composed_of, :class_name => 'DifferentName', :mapping => %w(different_person_first_name first_name) | |
| + class DifferentPerson < Person | |
| + composed_of :composed_of, :class_name => 'DifferentName', :mapping => %w(different_person_first_name first_name) | |
| + end | |
| end | |
| def test_composed_of_aggregation_redefinition_reflections_should_differ_and_not_inherited | |
| diff --git a/activerecord/test/cases/attribute_decorator_test.rb b/activerecord/test/cases/attribute_decorator_test.rb | |
| new file mode 100644 | |
| index 0000000..1527707 | |
| --- /dev/null | |
| +++ b/activerecord/test/cases/attribute_decorator_test.rb | |
| @@ -0,0 +1,216 @@ | |
| +require "cases/helper" | |
| +require 'models/artist' | |
| + | |
| +class AttributeDecoratorClassMethodTest < ActiveRecord::TestCase | |
| + def test_should_take_a_name_for_the_decorator_and_define_a_reader_and_writer_method_for_it | |
| + %w{ date_of_birth date_of_birth= }.each { |method| assert Artist.instance_methods.include?(method) } | |
| + end | |
| + | |
| + def test_should_not_take_any_options_other_than_class_and_class_name_and_decorates | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + attribute_decorator :foo, :some_other_option => true | |
| + end | |
| + end | |
| + end | |
| +end | |
| + | |
| +class AttributeDecoratorInGeneralTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| + end | |
| + | |
| + def teardown | |
| + Artist.class_eval do | |
| + attribute_decorator :date_of_birth, :class_name => 'Decorators::CompositeDate', :decorates => [:day, :month, :year] | |
| + end | |
| + end | |
| + | |
| + uses_mocha('should_only_use_constantize_once_and_cache_the_result') do | |
| + def test_should_only_use_constantize_once_and_cache_the_result | |
| + klass_name_string = 'CompositeDate' | |
| + | |
| + Artist.class_eval do | |
| + attribute_decorator :date_of_birth, :class_name => klass_name_string, :decorates => [:day, :month, :year] | |
| + end | |
| + | |
| + klass_name_string.expects(:constantize).times(1).returns(Decorators::CompositeDate) | |
| + 2.times { @artist.date_of_birth } | |
| + end | |
| + end | |
| + | |
| + def test_should_work_with_a_real_pointer_to_a_wrapper_class_instead_of_a_string | |
| + Artist.class_eval do | |
| + attribute_decorator :date_of_birth, :class => Decorators::CompositeDate, :decorates => [:day, :month, :year] | |
| + end | |
| + | |
| + assert_equal "31-12-1999", @artist.date_of_birth.to_s | |
| + end | |
| + | |
| + uses_mocha('should_also_work_with_an_anonymous_wrapper_class') do | |
| + def test_should_also_work_with_an_anonymous_wrapper_class | |
| + Artist.class_eval do | |
| + attribute_decorator :date_of_birth, :decorates => [:day, :month, :year], :class => (Class.new(Decorators::CompositeDate) do | |
| + # Reversed implementation of the super class. | |
| + def to_s | |
| + "#{@year}-#{@month}-#{@day}" | |
| + end | |
| + end) | |
| + end | |
| + | |
| + 2.times { assert_equal "1999-12-31", @artist.date_of_birth.to_s } | |
| + end | |
| + end | |
| + | |
| + def test_should_reset_the_before_type_cast_values_on_reload | |
| + @artist.date_of_birth = '01-01-1111' | |
| + Artist.find(@artist.id).update_attribute(:day, 13) | |
| + @artist.reload | |
| + | |
| + assert_equal "13-12-1999", @artist.date_of_birth_before_type_cast | |
| + end | |
| +end | |
| + | |
| +class AttributeDecoratorForMultipleAttributesTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| + @decorator = @artist.date_of_birth | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_name_option | |
| + assert_instance_of Decorators::CompositeDate, @artist.date_of_birth | |
| + end | |
| + | |
| + def test_should_have_assigned_values_to_decorate_to_the_decorator_instance | |
| + assert_equal 31, @decorator.day | |
| + assert_equal 12, @decorator.month | |
| + assert_equal 1999, @decorator.year | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.date_of_birth = '01-02-2000' | |
| + assert_equal '01-02-2000', @artist.date_of_birth_before_type_cast | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| + date_of_birth_as_string = @artist.date_of_birth.to_s | |
| + @artist.reload | |
| + assert_equal date_of_birth_as_string, @artist.date_of_birth_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_them_to_the_model_instance | |
| + @artist.date_of_birth = '01-02-2000' | |
| + assert_equal 1, @artist.day | |
| + assert_equal 2, @artist.month | |
| + assert_equal 2000, @artist.year | |
| + end | |
| +end | |
| + | |
| +class AttributeDecoratorForOneAttributeTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:location => 'amsterdam') | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_name_option | |
| + assert_instance_of Decorators::GPSCoordinator, @artist.gps_location | |
| + end | |
| + | |
| + def test_should_have_assigned_the_value_to_decorate_to_the_decorator_instance | |
| + assert_equal 'amsterdam', @artist.gps_location.location | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.gps_location = 'rotterdam' | |
| + assert_equal 'rotterdam', @artist.gps_location_before_type_cast | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| + gps_location_as_string = @artist.gps_location.to_s | |
| + @artist.reload | |
| + assert_equal gps_location_as_string, @artist.gps_location_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| + @artist.gps_location = 'amsterdam' | |
| + assert_equal '+1, +1', @artist.location | |
| + | |
| + @artist.gps_location = 'rotterdam' | |
| + assert_equal '-1, -1', @artist.location | |
| + end | |
| +end | |
| + | |
| +class AttributeDecoratorForAnAlreadyExistingAttributeTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:start_year => 1999) | |
| + @decorator = @artist.start_year | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_option | |
| + assert_instance_of Decorators::GPSCoordinator, @artist.gps_location | |
| + end | |
| + | |
| + def test_should_have_assigned_the_value_to_decorate_to_the_decorator_instance | |
| + assert_equal 1999, @decorator.start_year | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.start_year = '40 bc' | |
| + assert_equal '40 bc', @artist.start_year_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_and_write_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| + @artist.start_year = '40 bc' | |
| + assert_equal -41, @artist.read_attribute(:start_year) | |
| + end | |
| +end | |
| + | |
| +class AttributeDecoratorValidatorTest < ActiveRecord::TestCase | |
| + def teardown | |
| + Artist.instance_variable_set(:@validate_callbacks, []) | |
| + Artist.instance_variable_set(:@validate_on_update_callbacks, []) | |
| + end | |
| + | |
| + def test_should_delegate_validation_to_the_decorator | |
| + Artist.class_eval do | |
| + validates_decorator :date_of_birth, :start_year | |
| + end | |
| + | |
| + artist = Artist.create(:start_year => 1999) | |
| + | |
| + artist.start_year = 40 | |
| + assert artist.valid? | |
| + | |
| + artist.start_year = 'abcde' | |
| + assert !artist.valid? | |
| + assert_equal "is invalid", artist.errors.on(:start_year) | |
| + end | |
| + | |
| + def test_should_take_a_options_hash_for_more_detailed_configuration | |
| + Artist.class_eval do | |
| + validates_decorator :start_year, :message => 'is not a valid date', :on => :update | |
| + end | |
| + | |
| + artist = Artist.new(:start_year => 'abcde') | |
| + assert artist.valid? | |
| + | |
| + artist.save! | |
| + assert !artist.valid? | |
| + assert_equal 'is not a valid date', artist.errors.on(:start_year) | |
| + end | |
| + | |
| + def test_should_not_take_the_allow_nil_option | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + validates_decorator :start_year, :allow_nil => true | |
| + end | |
| + end | |
| + end | |
| + | |
| + def test_should_not_take_the_allow_blank_option | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + validates_decorator :start_year, :allow_blank => true | |
| + end | |
| + end | |
| + end | |
| +end | |
| \ No newline at end of file | |
| diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb | |
| index 5f54931..ebb7e72 100755 | |
| --- a/activerecord/test/cases/base_test.rb | |
| +++ b/activerecord/test/cases/base_test.rb | |
| @@ -1245,6 +1245,26 @@ class BasicsTest < ActiveRecord::TestCase | |
| assert clone.id != dev.id | |
| end | |
| + def test_clone_with_attribute_decorator_of_same_name_as_attribute | |
| + dev = DeveloperWithAttributeDecorator.find(1) | |
| + assert_kind_of DeveloperSalaryDecorator, dev.salary | |
| + | |
| + clone = nil | |
| + assert_nothing_raised { clone = dev.clone } | |
| + assert_kind_of DeveloperSalaryDecorator, clone.salary | |
| + assert_equal dev.salary.amount, clone.salary.amount | |
| + assert clone.new_record? | |
| + | |
| + # test if the attributes have been cloned | |
| + original_amount = clone.salary.amount | |
| + dev.salary.amount = 1 | |
| + assert_equal original_amount, clone.salary.amount | |
| + | |
| + assert clone.save | |
| + assert !clone.new_record? | |
| + assert clone.id != dev.id | |
| + end | |
| + | |
| def test_clone_preserves_subtype | |
| clone = nil | |
| assert_nothing_raised { clone = Company.find(3).clone } | |
| diff --git a/activerecord/test/cases/reflection_test.rb b/activerecord/test/cases/reflection_test.rb | |
| index e0ed3e5..6a4836e 100644 | |
| --- a/activerecord/test/cases/reflection_test.rb | |
| +++ b/activerecord/test/cases/reflection_test.rb | |
| @@ -1,5 +1,6 @@ | |
| require "cases/helper" | |
| require 'models/topic' | |
| +require 'models/artist' | |
| require 'models/customer' | |
| require 'models/company' | |
| require 'models/company_in_module' | |
| @@ -91,6 +92,30 @@ class ReflectionTest < ActiveRecord::TestCase | |
| assert_equal Money, Customer.reflect_on_aggregation(:balance).klass | |
| end | |
| + def test_attribute_decorator_reflection | |
| + reflection_for_date_of_birth = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| + :attribute_decorator, :date_of_birth, { | |
| + :class_name => 'Decorators::CompositeDate', | |
| + :decorates => [:day, :month, :year] | |
| + }, Artist | |
| + ) | |
| + | |
| + reflection_for_gps_location = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| + :attribute_decorator, :gps_location, { :class_name => 'Decorators::GPSCoordinator', :decorates => :location }, Artist | |
| + ) | |
| + | |
| + reflection_for_start_year = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| + :attribute_decorator, :start_year, { :class_name => 'Decorators::Year' }, Artist | |
| + ) | |
| + | |
| + [reflection_for_date_of_birth, reflection_for_gps_location, reflection_for_start_year].each do |reflection| | |
| + assert Artist.reflect_on_all_attribute_decorators.include?(reflection) | |
| + end | |
| + | |
| + assert_equal reflection_for_date_of_birth, Artist.reflect_on_attribute_decorator(:date_of_birth) | |
| + assert_equal Decorators::CompositeDate, Artist.reflect_on_attribute_decorator(:date_of_birth).klass | |
| + end | |
| + | |
| def test_has_many_reflection | |
| reflection_for_clients = ActiveRecord::Reflection::AssociationReflection.new(:has_many, :clients, { :order => "id", :dependent => :destroy }, Firm) | |
| diff --git a/activerecord/test/models/artist.rb b/activerecord/test/models/artist.rb | |
| new file mode 100644 | |
| index 0000000..f2e4d1b | |
| --- /dev/null | |
| +++ b/activerecord/test/models/artist.rb | |
| @@ -0,0 +1,81 @@ | |
| +class Artist < ActiveRecord::Base | |
| + # Defines a non existing attribute decorating multiple existing attributes | |
| + attribute_decorator :date_of_birth, :class_name => 'Decorators::CompositeDate', :decorates => [:day, :month, :year] | |
| + | |
| + # Defines a decorates for one attribute. | |
| + attribute_decorator :gps_location, :class_name => 'Decorators::GPSCoordinator', :decorates => :location | |
| + | |
| + # Defines a decorator for an existing attribute. | |
| + attribute_decorator :start_year, :class_name => 'Decorators::Year' | |
| + | |
| + # These validations are defined inline in the test cases. See attribute_decorator_test.rb. | |
| + # | |
| + # validates_decorator :date_of_birth, :start_year | |
| + # validates_decorator :start_year, :message => 'is not a valid date', :on => :update | |
| +end | |
| + | |
| +module Decorators | |
| + class CompositeDate | |
| + attr_reader :day, :month, :year | |
| + | |
| + def self.parse(value) | |
| + new *value.scan(/(\d\d)-(\d\d)-(\d{4})/).flatten.map { |x| x.to_i } | |
| + end | |
| + | |
| + def initialize(day, month, year) | |
| + @day, @month, @year = day, month, year | |
| + end | |
| + | |
| + def valid? | |
| + true | |
| + end | |
| + | |
| + def to_a | |
| + [@day, @month, @year] | |
| + end | |
| + | |
| + def to_s | |
| + "#{@day}-#{@month}-#{@year}" | |
| + end | |
| + end | |
| + | |
| + class GPSCoordinator | |
| + attr_reader :location | |
| + | |
| + def self.parse(value) | |
| + new(value == 'amsterdam' ? '+1, +1' : '-1, -1') | |
| + end | |
| + | |
| + def initialize(location) | |
| + @location = location | |
| + end | |
| + | |
| + def to_a | |
| + [@location] | |
| + end | |
| + | |
| + def to_s | |
| + @location | |
| + end | |
| + end | |
| + | |
| + class Year | |
| + attr_reader :start_year | |
| + | |
| + def self.parse(value) | |
| + new(value == '40 bc' ? -41 : value.to_i) | |
| + end | |
| + | |
| + def initialize(start_year) | |
| + @start_year = start_year | |
| + end | |
| + | |
| + def valid? | |
| + @start_year != 0 | |
| + end | |
| + | |
| + def to_a | |
| + [@start_year] | |
| + end | |
| + end | |
| +end | |
| \ No newline at end of file | |
| diff --git a/activerecord/test/models/customer.rb b/activerecord/test/models/customer.rb | |
| index e258ccd..ba28793 100644 | |
| --- a/activerecord/test/models/customer.rb | |
| +++ b/activerecord/test/models/customer.rb | |
| @@ -1,8 +1,10 @@ | |
| -class Customer < ActiveRecord::Base | |
| - composed_of :address, :mapping => [ %w(address_street street), %w(address_city city), %w(address_country country) ], :allow_nil => true | |
| - composed_of :balance, :class_name => "Money", :mapping => %w(balance amount), :converter => Proc.new { |balance| balance.to_money } | |
| - composed_of :gps_location, :allow_nil => true | |
| - composed_of :fullname, :mapping => %w(name to_s), :constructor => Proc.new { |name| Fullname.parse(name) }, :converter => :parse | |
| +ActiveSupport::Deprecation.silence do | |
| + class Customer < ActiveRecord::Base | |
| + composed_of :address, :mapping => [ %w(address_street street), %w(address_city city), %w(address_country country) ], :allow_nil => true | |
| + composed_of :balance, :class_name => "Money", :mapping => %w(balance amount), :converter => Proc.new { |balance| balance.to_money } | |
| + composed_of :gps_location, :allow_nil => true | |
| + composed_of :fullname, :mapping => %w(name to_s), :constructor => Proc.new { |name| Fullname.parse(name) }, :converter => :parse | |
| + end | |
| end | |
| class Address | |
| diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb | |
| index 92039a4..14357bc 100644 | |
| --- a/activerecord/test/models/developer.rb | |
| +++ b/activerecord/test/models/developer.rb | |
| @@ -62,10 +62,18 @@ class AuditLog < ActiveRecord::Base | |
| belongs_to :unvalidated_developer, :class_name => 'Developer' | |
| end | |
| -DeveloperSalary = Struct.new(:amount) | |
| -class DeveloperWithAggregate < ActiveRecord::Base | |
| +ActiveSupport::Deprecation.silence do | |
| + DeveloperSalary = Struct.new(:amount) | |
| + class DeveloperWithAggregate < ActiveRecord::Base | |
| + self.table_name = 'developers' | |
| + composed_of :salary, :class_name => 'DeveloperSalary', :mapping => [%w(salary amount)] | |
| + end | |
| +end | |
| + | |
| +DeveloperSalaryDecorator = Struct.new(:amount) | |
| +class DeveloperWithAttributeDecorator < ActiveRecord::Base | |
| self.table_name = 'developers' | |
| - composed_of :salary, :class_name => 'DeveloperSalary', :mapping => [%w(salary amount)] | |
| + attribute_decorator :salary, :class => DeveloperSalaryDecorator | |
| end | |
| class DeveloperWithBeforeDestroyRaise < ActiveRecord::Base | |
| diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb | |
| index 6217e3b..a08ab25 100644 | |
| --- a/activerecord/test/schema/schema.rb | |
| +++ b/activerecord/test/schema/schema.rb | |
| @@ -26,6 +26,14 @@ ActiveRecord::Schema.define do | |
| t.integer :credit_limit | |
| end | |
| + create_table :artists, :force => true do |t| | |
| + t.integer :day | |
| + t.integer :month | |
| + t.integer :year | |
| + t.integer :start_year | |
| + t.string :location | |
| + end | |
| + | |
| create_table :audit_logs, :force => true do |t| | |
| t.column :message, :string, :null=>false | |
| t.column :developer_id, :integer, :null=>false | |
| -- | |
| 1.5.5.3 | |
| From 57273c7785805b943f38e362b8a54677bc00073b Mon Sep 17 00:00:00 2001 | |
| From: Eloy Duran <eloy.de.enige@gmail.com> | |
| Date: Wed, 10 Dec 2008 21:04:05 +0100 | |
| Subject: [PATCH] Changed API as discussed on LH. | |
| Fixed whitespace. | |
| --- | |
| activerecord/lib/active_record.rb | 2 +- | |
| .../lib/active_record/attribute_decorator.rb | 187 ----------------- | |
| activerecord/lib/active_record/attribute_view.rb | 189 +++++++++++++++++ | |
| activerecord/lib/active_record/base.rb | 4 +- | |
| activerecord/lib/active_record/reflection.rb | 25 ++- | |
| .../test/cases/attribute_decorator_test.rb | 216 -------------------- | |
| activerecord/test/cases/attribute_view_test.rb | 191 +++++++++++++++++ | |
| activerecord/test/cases/base_test.rb | 6 +- | |
| activerecord/test/cases/reflection_test.rb | 24 +- | |
| activerecord/test/models/artist.rb | 64 +++--- | |
| activerecord/test/models/developer.rb | 6 +- | |
| 11 files changed, 447 insertions(+), 467 deletions(-) | |
| delete mode 100644 activerecord/lib/active_record/attribute_decorator.rb | |
| create mode 100644 activerecord/lib/active_record/attribute_view.rb | |
| delete mode 100644 activerecord/test/cases/attribute_decorator_test.rb | |
| create mode 100644 activerecord/test/cases/attribute_view_test.rb | |
| diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb | |
| index 5aa3cac..225e18a 100644 | |
| --- a/activerecord/lib/active_record.rb | |
| +++ b/activerecord/lib/active_record.rb | |
| @@ -41,10 +41,10 @@ module ActiveRecord | |
| autoload :ConnectionNotEstablished, 'active_record/base' | |
| autoload :Aggregations, 'active_record/aggregations' | |
| - autoload :AttributeDecorator, 'active_record/attribute_decorator' | |
| autoload :AssociationPreload, 'active_record/association_preload' | |
| autoload :Associations, 'active_record/associations' | |
| autoload :AttributeMethods, 'active_record/attribute_methods' | |
| + autoload :AttributeView, 'active_record/attribute_view' | |
| autoload :Base, 'active_record/base' | |
| autoload :Calculations, 'active_record/calculations' | |
| autoload :Callbacks, 'active_record/callbacks' | |
| diff --git a/activerecord/lib/active_record/attribute_decorator.rb b/activerecord/lib/active_record/attribute_decorator.rb | |
| deleted file mode 100644 | |
| index 66ee4d8..0000000 | |
| --- a/activerecord/lib/active_record/attribute_decorator.rb | |
| +++ /dev/null | |
| @@ -1,187 +0,0 @@ | |
| -module ActiveRecord | |
| - module AttributeDecorator #:nodoc: | |
| - def self.included(klass) | |
| - klass.extend ClassMethods | |
| - end | |
| - | |
| - def clear_attribute_decorator_cache | |
| - self.class.reflect_on_all_attribute_decorators.each do |attribute_decorator| | |
| - instance_variable_set "@#{attribute_decorator.name}_before_type_cast", nil | |
| - end unless new_record? | |
| - end | |
| - | |
| - module ClassMethods | |
| - # Adds reader and writer methods for decorating one or more attributes: | |
| - # <tt>attribute_decorator :date_of_birth</tt> adds <tt>date_of_birth</tt> and <tt>date_of_birth=(new_date_of_birth)</tt> methods. | |
| - # | |
| - # Options are: | |
| - # * <tt>:class</tt> - specify the decorator class. | |
| - # * <tt>:class_name</tt> - specify the class name of the decorator class, | |
| - # this should be used if, at the time of loading the model class, the decorator class is not yet available. | |
| - # * <tt>:decorates</tt> - specifies the attributes that should be wrapped by the decorator class. | |
| - # Takes an array of attributes or a single attribute. If none is specified the same name as the name of the attribute_decorator is assumed. | |
| - # | |
| - # The decorator class should implement a class method called <tt>parse</tt>, which takes 1 argument. | |
| - # In that method your decorator class is responsible for returning an instance of itself with the attribute(s) parsed and assigned. | |
| - # | |
| - # Your decorator class’s initialize method should take as it’s arguments the attributes that were specified | |
| - # to the <tt>:decorates</tt> option and in the same order as they were specified. | |
| - # You should also implement a <tt>to_a</tt> method which should return the parsed values as an array, | |
| - # again in the same order as specified with the <tt>:decorates</tt> option. | |
| - # | |
| - # If you wish to use <tt>validates_decorator</tt>, your decorator class should also implement a <tt>valid?</tt> instance method, | |
| - # which is responsible for checking the validity of the value(s). See <tt>validates_decorator</tt> for more info. | |
| - # | |
| - # class CompositeDate | |
| - # attr_accessor :day, :month, :year | |
| - # | |
| - # # Gets the value from Artist#date_of_birth= and will return a CompositeDate instance with the :day, :month and :year attributes set. | |
| - # def self.parse(value) | |
| - # day, month, year = value.scan(/(\d+)-(\d+)-(\d{4})/).flatten.map { |x| x.to_i } | |
| - # new(day, month, year) | |
| - # end | |
| - # | |
| - # # Notice that the order of arguments is the same as specified with the :decorates option. | |
| - # def initialize(day, month, year) | |
| - # @day, @month, @year = day, month, year | |
| - # end | |
| - # | |
| - # # Here we return the parsed values in the same order as specified with the :decorates option. | |
| - # def to_a | |
| - # [@day, @month, @year] | |
| - # end | |
| - # | |
| - # # Here we return a string representation of the value, this will for instance be used by the form helpers. | |
| - # def to_s | |
| - # "#{@day}-#{@month}-#{@year}" | |
| - # end | |
| - # | |
| - # # Returns wether or not this CompositeDate instance is valid. | |
| - # def valid? | |
| - # @day != 0 && @month != 0 && @year != 0 | |
| - # end | |
| - # end | |
| - # | |
| - # class Artist < ActiveRecord::Base | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| - # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| - # end | |
| - # | |
| - # Option examples: | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| - # attribute_decorator :gps_location, :class_name => 'GPSCoordinator', :decorates => :location | |
| - # attribute_decorator :balance, :class_name => 'Money' | |
| - # attribute_decorator :english_date_of_birth, :class => (Class.new(CompositeDate) do | |
| - # # This is a anonymous subclass of CompositeDate that supports the date in English order | |
| - # def to_s | |
| - # "#{@month}/#{@day}/#{@year}" | |
| - # end | |
| - # | |
| - # def self.parse(value) | |
| - # month, day, year = value.scan(/(\d+)\/(\d+)\/(\d{4})/).flatten.map { |x| x.to_i } | |
| - # new(day, month, year) | |
| - # end | |
| - # end) | |
| - def attribute_decorator(attr, options) | |
| - options.assert_valid_keys(:class, :class_name, :decorates) | |
| - | |
| - if options[:decorates].nil? | |
| - options[:decorates] = [attr] | |
| - elsif !options[:decorates].is_a?(Array) | |
| - options[:decorates] = [options[:decorates]] | |
| - end | |
| - | |
| - define_attribute_decorator_reader(attr, options) | |
| - define_attribute_decorator_writer(attr, options) | |
| - | |
| - create_reflection(:attribute_decorator, attr, options, self) | |
| - end | |
| - | |
| - # Validates wether the decorated attribute is valid by sending the decorator instance the <tt>valid?</tt> message. | |
| - # | |
| - # class CompositeDate | |
| - # attr_accessor :day, :month, :year | |
| - # | |
| - # def self.parse(value) | |
| - # day, month, year = value.scan(/(\d\d)-(\d\d)-(\d{4})/).flatten.map { |x| x.to_i } | |
| - # new(day, month, year) | |
| - # end | |
| - # | |
| - # def initialize(day, month, year) | |
| - # @day, @month, @year = day, month, year | |
| - # end | |
| - # | |
| - # def to_a | |
| - # [@day, @month, @year] | |
| - # end | |
| - # | |
| - # def to_s | |
| - # "#{@day}-#{@month}-#{@year}" | |
| - # end | |
| - # | |
| - # # Returns wether or not this CompositeDate instance is valid. | |
| - # def valid? | |
| - # @day != 0 && @month != 0 && @year != 0 | |
| - # end | |
| - # end | |
| - # | |
| - # class Artist < ActiveRecord::Base | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorates => [:day, :month, :year] | |
| - # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| - # end | |
| - # | |
| - # artist = Artist.new | |
| - # artist.date_of_birth = '31-12-1999' | |
| - # artist.valid? # => true | |
| - # artist.date_of_birth = 'foo-bar-baz' | |
| - # artist.valid? # => false | |
| - # artist.errors.on(:date_of_birth) # => "is not a valid date" | |
| - # | |
| - # Configuration options: | |
| - # * <tt>:message</tt> - A custom error message (default is: "is invalid"). | |
| - # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>). | |
| - # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| - # occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The | |
| - # method, proc or string should return or evaluate to a true or false value. | |
| - # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| - # not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The | |
| - # method, proc or string should return or evaluate to a true or false value. | |
| - def validates_decorator(*attrs) | |
| - configuration = { :message => I18n.translate('active_record.error_messages')[:invalid], :on => :save } | |
| - configuration.update attrs.extract_options! | |
| - | |
| - invalid_keys = configuration.keys.select { |key| key == :allow_nil || key == :allow_blank } | |
| - raise ArgumentError, "Unknown key(s): #{ invalid_keys.join(', ') }" unless invalid_keys.empty? | |
| - | |
| - validates_each(attrs, configuration) do |record, attr, value| | |
| - record.errors.add(attr, configuration[:message]) unless record.send(attr).valid? | |
| - end | |
| - end | |
| - | |
| - private | |
| - | |
| - def define_attribute_decorator_reader(attr, options) | |
| - class_eval do | |
| - define_method(attr) do | |
| - (options[:class] ||= options[:class_name].constantize).new(*options[:decorates].map { |attribute| read_attribute(attribute) }) | |
| - end | |
| - end | |
| - end | |
| - | |
| - def define_attribute_decorator_writer(attr, options) | |
| - class_eval do | |
| - define_method("#{attr}_before_type_cast") do | |
| - instance_variable_get("@#{attr}_before_type_cast") || send(attr).to_s | |
| - end | |
| - | |
| - define_method("#{attr}=") do |value| | |
| - instance_variable_set("@#{attr}_before_type_cast", value) | |
| - values = (options[:class] ||= options[:class_name].constantize).parse(value).to_a | |
| - options[:decorates].each_with_index { |attribute, index| write_attribute attribute, values[index] } | |
| - value | |
| - end | |
| - end | |
| - end | |
| - end | |
| - end | |
| -end | |
| \ No newline at end of file | |
| diff --git a/activerecord/lib/active_record/attribute_view.rb b/activerecord/lib/active_record/attribute_view.rb | |
| new file mode 100644 | |
| index 0000000..5e9968a | |
| --- /dev/null | |
| +++ b/activerecord/lib/active_record/attribute_view.rb | |
| @@ -0,0 +1,189 @@ | |
| +module ActiveRecord | |
| + module AttributeView #:nodoc: | |
| + def self.included(klass) | |
| + klass.extend ClassMethods | |
| + end | |
| + | |
| + private | |
| + | |
| + def clear_attribute_view_cache | |
| + self.class.reflect_on_all_attribute_views.each do |attribute_view| | |
| + instance_variable_set "@#{attribute_view.name}_before_type_cast", nil | |
| + end unless new_record? | |
| + end | |
| + | |
| + module ClassMethods | |
| + # Adds reader and writer methods for decorating one or more attributes: | |
| + # <tt>attribute_decorator :date_of_birth</tt> adds <tt>date_of_birth</tt> and <tt>date_of_birth=(new_date_of_birth)</tt> methods. | |
| + # | |
| + # Options are: | |
| + # * <tt>:class</tt> - specify the decorator class. | |
| + # * <tt>:class_name</tt> - specify the class name of the decorator class, | |
| + # this should be used if, at the time of loading the model class, the decorator class is not yet available. | |
| + # * <tt>:decorating</tt> - specifies the attributes that should be wrapped by the decorator class. | |
| + # Takes an array of attributes or a single attribute. If none is specified the same name as the name of the attribute_decorator is assumed. | |
| + # | |
| + # The decorator class should implement a class method called <tt>parse</tt>, which takes 1 argument. | |
| + # In that method your decorator class is responsible for returning an instance of itself with the attribute(s) parsed and assigned. | |
| + # | |
| + # Your decorator class’s initialize method should take as it’s arguments the attributes that were specified | |
| + # to the <tt>:decorating</tt> option and in the same order as they were specified. | |
| + # You should also implement a <tt>to_a</tt> method which should return the parsed values as an array, | |
| + # again in the same order as specified with the <tt>:decorating</tt> option. | |
| + # | |
| + # If you wish to use <tt>validates_decorator</tt>, your decorator class should also implement a <tt>valid?</tt> instance method, | |
| + # which is responsible for checking the validity of the value(s). See <tt>validates_decorator</tt> for more info. | |
| + # | |
| + # class CompositeDate | |
| + # attr_accessor :day, :month, :year | |
| + # | |
| + # # Gets the value from Artist#date_of_birth= and will return a CompositeDate instance with the :day, :month and :year attributes set. | |
| + # def self.parse(value) | |
| + # day, month, year = value.scan(/(\d+)-(\d+)-(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # | |
| + # # Notice that the order of arguments is the same as specified with the :decorating option. | |
| + # def initialize(day, month, year) | |
| + # @day, @month, @year = day, month, year | |
| + # end | |
| + # | |
| + # # Here we return the parsed values in the same order as specified with the :decorating option. | |
| + # def to_a | |
| + # [@day, @month, @year] | |
| + # end | |
| + # | |
| + # # Here we return a string representation of the value, this will for instance be used by the form helpers. | |
| + # def to_s | |
| + # "#{@day}-#{@month}-#{@year}" | |
| + # end | |
| + # | |
| + # # Returns wether or not this CompositeDate instance is valid. | |
| + # def valid? | |
| + # @day != 0 && @month != 0 && @year != 0 | |
| + # end | |
| + # end | |
| + # | |
| + # class Artist < ActiveRecord::Base | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| + # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # end | |
| + # | |
| + # Option examples: | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| + # attribute_decorator :gps_location, :class_name => 'GPSCoordinator', :decorating => :location | |
| + # attribute_decorator :balance, :class_name => 'Money' | |
| + # attribute_decorator :english_date_of_birth, :class => (Class.new(CompositeDate) do | |
| + # # This is a anonymous subclass of CompositeDate that supports the date in English order | |
| + # def to_s | |
| + # "#{@month}/#{@day}/#{@year}" | |
| + # end | |
| + # | |
| + # def self.parse(value) | |
| + # month, day, year = value.scan(/(\d+)\/(\d+)\/(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # end) | |
| + def view(attr, options) | |
| + options.assert_valid_keys(:as, :decorating) | |
| + | |
| + if options[:decorating].nil? | |
| + options[:decorating] = [attr] | |
| + elsif !options[:decorating].is_a?(Array) | |
| + options[:decorating] = [options[:decorating]] | |
| + end | |
| + | |
| + define_attribute_view_reader(attr, options) | |
| + define_attribute_view_writer(attr, options) | |
| + | |
| + create_reflection(:view, attr, options, self) | |
| + end | |
| + | |
| + # Validates wether the decorated attribute is valid by sending the decorator instance the <tt>valid?</tt> message. | |
| + # | |
| + # class CompositeDate | |
| + # attr_accessor :day, :month, :year | |
| + # | |
| + # def self.parse(value) | |
| + # day, month, year = value.scan(/(\d\d)-(\d\d)-(\d{4})/).flatten.map { |x| x.to_i } | |
| + # new(day, month, year) | |
| + # end | |
| + # | |
| + # def initialize(day, month, year) | |
| + # @day, @month, @year = day, month, year | |
| + # end | |
| + # | |
| + # def to_a | |
| + # [@day, @month, @year] | |
| + # end | |
| + # | |
| + # def to_s | |
| + # "#{@day}-#{@month}-#{@year}" | |
| + # end | |
| + # | |
| + # # Returns wether or not this CompositeDate instance is valid. | |
| + # def valid? | |
| + # @day != 0 && @month != 0 && @year != 0 | |
| + # end | |
| + # end | |
| + # | |
| + # class Artist < ActiveRecord::Base | |
| + # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| + # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # end | |
| + # | |
| + # artist = Artist.new | |
| + # artist.date_of_birth = '31-12-1999' | |
| + # artist.valid? # => true | |
| + # artist.date_of_birth = 'foo-bar-baz' | |
| + # artist.valid? # => false | |
| + # artist.errors.on(:date_of_birth) # => "is not a valid date" | |
| + # | |
| + # Configuration options: | |
| + # * <tt>:message</tt> - A custom error message (default is: "is invalid"). | |
| + # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>). | |
| + # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| + # occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The | |
| + # method, proc or string should return or evaluate to a true or false value. | |
| + # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should | |
| + # not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The | |
| + # method, proc or string should return or evaluate to a true or false value. | |
| + def validates_view(*attrs) | |
| + configuration = { :message => I18n.translate('active_record.error_messages')[:invalid], :on => :save } | |
| + configuration.update attrs.extract_options! | |
| + | |
| + invalid_keys = configuration.keys.select { |key| key == :allow_nil || key == :allow_blank } | |
| + raise ArgumentError, "Unknown key(s): #{ invalid_keys.join(', ') }" unless invalid_keys.empty? | |
| + | |
| + validates_each(attrs, configuration) do |record, attr, value| | |
| + record.errors.add(attr, configuration[:message]) unless record.send(attr).valid? | |
| + end | |
| + end | |
| + | |
| + private | |
| + | |
| + def define_attribute_view_reader(attr, options) | |
| + class_eval do | |
| + define_method(attr) do | |
| + options[:as].new(*options[:decorating].map { |attribute| read_attribute(attribute) }) | |
| + end | |
| + end | |
| + end | |
| + | |
| + def define_attribute_view_writer(attr, options) | |
| + class_eval do | |
| + define_method("#{attr}_before_type_cast") do | |
| + instance_variable_get("@#{attr}_before_type_cast") || send(attr).to_s | |
| + end | |
| + | |
| + define_method("#{attr}=") do |value| | |
| + instance_variable_set("@#{attr}_before_type_cast", value) | |
| + values = options[:as].parse(value).to_a | |
| + options[:decorating].each_with_index { |attribute, index| write_attribute attribute, values[index] } | |
| + value | |
| + end | |
| + end | |
| + end | |
| + end | |
| + end | |
| +end | |
| \ No newline at end of file | |
| diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb | |
| index 43b46f4..d01730e 100755 | |
| --- a/activerecord/lib/active_record/base.rb | |
| +++ b/activerecord/lib/active_record/base.rb | |
| @@ -2578,8 +2578,8 @@ module ActiveRecord #:nodoc: | |
| # an exclusive row lock. | |
| def reload(options = nil) | |
| clear_aggregation_cache | |
| - clear_attribute_decorator_cache | |
| clear_association_cache | |
| + clear_attribute_view_cache | |
| @attributes.update(self.class.find(self.id, options).instance_variable_get('@attributes')) | |
| @attributes_cache = {} | |
| self | |
| @@ -3015,8 +3015,8 @@ module ActiveRecord #:nodoc: | |
| extend QueryCache | |
| include Validations | |
| include Locking::Optimistic, Locking::Pessimistic | |
| - include AttributeDecorator | |
| include AttributeMethods | |
| + include AttributeView | |
| include Dirty | |
| include Callbacks, Observing, Timestamp | |
| include Associations, AssociationPreload, NamedScope | |
| diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb | |
| index 3f3d3a1..ea5cfd6 100644 | |
| --- a/activerecord/lib/active_record/reflection.rb | |
| +++ b/activerecord/lib/active_record/reflection.rb | |
| @@ -17,8 +17,8 @@ module ActiveRecord | |
| reflection = klass.new(macro, name, options, active_record) | |
| when :composed_of | |
| reflection = AggregateReflection.new(macro, name, options, active_record) | |
| - when :attribute_decorator | |
| - reflection = AttributeDecoratorReflection.new(macro, name, options, active_record) | |
| + when :view | |
| + reflection = AttributeViewReflection.new(macro, name, options, active_record) | |
| end | |
| write_inheritable_hash :reflections, name => reflection | |
| reflection | |
| @@ -47,17 +47,17 @@ module ActiveRecord | |
| reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil | |
| end | |
| - # Returns an array of DecoratorReflection objects for all the attribute decorators in the class. | |
| - def reflect_on_all_attribute_decorators | |
| - reflections.values.select { |reflection| reflection.is_a?(AttributeDecoratorReflection) } | |
| + # Returns an array of AttrbuteViewReflection objects for all the attribute views in the class. | |
| + def reflect_on_all_attribute_views | |
| + reflections.values.select { |reflection| reflection.is_a?(AttributeViewReflection) } | |
| end | |
| - # Returns the DecoratorReflection object for the named <tt>attribute decorator</tt> (use the symbol). Example: | |
| + # Returns the AttributeViewReflection object for the named <tt>view</tt> (use the symbol). Example: | |
| # | |
| - # Account.reflect_on_decorator(:balance) # returns the balance DecoratorReflection | |
| + # Account.reflect_on_attribute_view(:balance) # returns the balance AttributeViewReflection | |
| # | |
| - def reflect_on_attribute_decorator(attribute_decorator) | |
| - reflections[attribute_decorator].is_a?(AttributeDecoratorReflection) ? reflections[attribute_decorator] : nil | |
| + def reflect_on_attribute_view(attribute_view) | |
| + reflections[attribute_view].is_a?(AttributeViewReflection) ? reflections[attribute_view] : nil | |
| end | |
| # Returns an array of AssociationReflection objects for all the associations in the class. If you only want to reflect on a | |
| @@ -148,8 +148,11 @@ module ActiveRecord | |
| class AggregateReflection < MacroReflection #:nodoc: | |
| end | |
| - # Holds all the meta-data about an aggregation as it was specified in the Active Record class. | |
| - class AttributeDecoratorReflection < MacroReflection #:nodoc: | |
| + # Holds all the meta-data about an attribute view as it was specified in the Active Record class. | |
| + class AttributeViewReflection < MacroReflection #:nodoc: | |
| + def klass | |
| + options[:as] | |
| + end | |
| end | |
| # Holds all the meta-data about an association as it was specified in the Active Record class. | |
| diff --git a/activerecord/test/cases/attribute_decorator_test.rb b/activerecord/test/cases/attribute_decorator_test.rb | |
| deleted file mode 100644 | |
| index 1527707..0000000 | |
| --- a/activerecord/test/cases/attribute_decorator_test.rb | |
| +++ /dev/null | |
| @@ -1,216 +0,0 @@ | |
| -require "cases/helper" | |
| -require 'models/artist' | |
| - | |
| -class AttributeDecoratorClassMethodTest < ActiveRecord::TestCase | |
| - def test_should_take_a_name_for_the_decorator_and_define_a_reader_and_writer_method_for_it | |
| - %w{ date_of_birth date_of_birth= }.each { |method| assert Artist.instance_methods.include?(method) } | |
| - end | |
| - | |
| - def test_should_not_take_any_options_other_than_class_and_class_name_and_decorates | |
| - assert_raise(ArgumentError) do | |
| - Artist.class_eval do | |
| - attribute_decorator :foo, :some_other_option => true | |
| - end | |
| - end | |
| - end | |
| -end | |
| - | |
| -class AttributeDecoratorInGeneralTest < ActiveRecord::TestCase | |
| - def setup | |
| - @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| - end | |
| - | |
| - def teardown | |
| - Artist.class_eval do | |
| - attribute_decorator :date_of_birth, :class_name => 'Decorators::CompositeDate', :decorates => [:day, :month, :year] | |
| - end | |
| - end | |
| - | |
| - uses_mocha('should_only_use_constantize_once_and_cache_the_result') do | |
| - def test_should_only_use_constantize_once_and_cache_the_result | |
| - klass_name_string = 'CompositeDate' | |
| - | |
| - Artist.class_eval do | |
| - attribute_decorator :date_of_birth, :class_name => klass_name_string, :decorates => [:day, :month, :year] | |
| - end | |
| - | |
| - klass_name_string.expects(:constantize).times(1).returns(Decorators::CompositeDate) | |
| - 2.times { @artist.date_of_birth } | |
| - end | |
| - end | |
| - | |
| - def test_should_work_with_a_real_pointer_to_a_wrapper_class_instead_of_a_string | |
| - Artist.class_eval do | |
| - attribute_decorator :date_of_birth, :class => Decorators::CompositeDate, :decorates => [:day, :month, :year] | |
| - end | |
| - | |
| - assert_equal "31-12-1999", @artist.date_of_birth.to_s | |
| - end | |
| - | |
| - uses_mocha('should_also_work_with_an_anonymous_wrapper_class') do | |
| - def test_should_also_work_with_an_anonymous_wrapper_class | |
| - Artist.class_eval do | |
| - attribute_decorator :date_of_birth, :decorates => [:day, :month, :year], :class => (Class.new(Decorators::CompositeDate) do | |
| - # Reversed implementation of the super class. | |
| - def to_s | |
| - "#{@year}-#{@month}-#{@day}" | |
| - end | |
| - end) | |
| - end | |
| - | |
| - 2.times { assert_equal "1999-12-31", @artist.date_of_birth.to_s } | |
| - end | |
| - end | |
| - | |
| - def test_should_reset_the_before_type_cast_values_on_reload | |
| - @artist.date_of_birth = '01-01-1111' | |
| - Artist.find(@artist.id).update_attribute(:day, 13) | |
| - @artist.reload | |
| - | |
| - assert_equal "13-12-1999", @artist.date_of_birth_before_type_cast | |
| - end | |
| -end | |
| - | |
| -class AttributeDecoratorForMultipleAttributesTest < ActiveRecord::TestCase | |
| - def setup | |
| - @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| - @decorator = @artist.date_of_birth | |
| - end | |
| - | |
| - def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_name_option | |
| - assert_instance_of Decorators::CompositeDate, @artist.date_of_birth | |
| - end | |
| - | |
| - def test_should_have_assigned_values_to_decorate_to_the_decorator_instance | |
| - assert_equal 31, @decorator.day | |
| - assert_equal 12, @decorator.month | |
| - assert_equal 1999, @decorator.year | |
| - end | |
| - | |
| - def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| - @artist.date_of_birth = '01-02-2000' | |
| - assert_equal '01-02-2000', @artist.date_of_birth_before_type_cast | |
| - end | |
| - | |
| - def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| - date_of_birth_as_string = @artist.date_of_birth.to_s | |
| - @artist.reload | |
| - assert_equal date_of_birth_as_string, @artist.date_of_birth_before_type_cast | |
| - end | |
| - | |
| - def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_them_to_the_model_instance | |
| - @artist.date_of_birth = '01-02-2000' | |
| - assert_equal 1, @artist.day | |
| - assert_equal 2, @artist.month | |
| - assert_equal 2000, @artist.year | |
| - end | |
| -end | |
| - | |
| -class AttributeDecoratorForOneAttributeTest < ActiveRecord::TestCase | |
| - def setup | |
| - @artist = Artist.create(:location => 'amsterdam') | |
| - end | |
| - | |
| - def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_name_option | |
| - assert_instance_of Decorators::GPSCoordinator, @artist.gps_location | |
| - end | |
| - | |
| - def test_should_have_assigned_the_value_to_decorate_to_the_decorator_instance | |
| - assert_equal 'amsterdam', @artist.gps_location.location | |
| - end | |
| - | |
| - def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| - @artist.gps_location = 'rotterdam' | |
| - assert_equal 'rotterdam', @artist.gps_location_before_type_cast | |
| - end | |
| - | |
| - def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| - gps_location_as_string = @artist.gps_location.to_s | |
| - @artist.reload | |
| - assert_equal gps_location_as_string, @artist.gps_location_before_type_cast | |
| - end | |
| - | |
| - def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| - @artist.gps_location = 'amsterdam' | |
| - assert_equal '+1, +1', @artist.location | |
| - | |
| - @artist.gps_location = 'rotterdam' | |
| - assert_equal '-1, -1', @artist.location | |
| - end | |
| -end | |
| - | |
| -class AttributeDecoratorForAnAlreadyExistingAttributeTest < ActiveRecord::TestCase | |
| - def setup | |
| - @artist = Artist.create(:start_year => 1999) | |
| - @decorator = @artist.start_year | |
| - end | |
| - | |
| - def test_should_return_an_instance_of_the_decorator_class_specified_by_the_class_option | |
| - assert_instance_of Decorators::GPSCoordinator, @artist.gps_location | |
| - end | |
| - | |
| - def test_should_have_assigned_the_value_to_decorate_to_the_decorator_instance | |
| - assert_equal 1999, @decorator.start_year | |
| - end | |
| - | |
| - def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| - @artist.start_year = '40 bc' | |
| - assert_equal '40 bc', @artist.start_year_before_type_cast | |
| - end | |
| - | |
| - def test_should_parse_and_write_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| - @artist.start_year = '40 bc' | |
| - assert_equal -41, @artist.read_attribute(:start_year) | |
| - end | |
| -end | |
| - | |
| -class AttributeDecoratorValidatorTest < ActiveRecord::TestCase | |
| - def teardown | |
| - Artist.instance_variable_set(:@validate_callbacks, []) | |
| - Artist.instance_variable_set(:@validate_on_update_callbacks, []) | |
| - end | |
| - | |
| - def test_should_delegate_validation_to_the_decorator | |
| - Artist.class_eval do | |
| - validates_decorator :date_of_birth, :start_year | |
| - end | |
| - | |
| - artist = Artist.create(:start_year => 1999) | |
| - | |
| - artist.start_year = 40 | |
| - assert artist.valid? | |
| - | |
| - artist.start_year = 'abcde' | |
| - assert !artist.valid? | |
| - assert_equal "is invalid", artist.errors.on(:start_year) | |
| - end | |
| - | |
| - def test_should_take_a_options_hash_for_more_detailed_configuration | |
| - Artist.class_eval do | |
| - validates_decorator :start_year, :message => 'is not a valid date', :on => :update | |
| - end | |
| - | |
| - artist = Artist.new(:start_year => 'abcde') | |
| - assert artist.valid? | |
| - | |
| - artist.save! | |
| - assert !artist.valid? | |
| - assert_equal 'is not a valid date', artist.errors.on(:start_year) | |
| - end | |
| - | |
| - def test_should_not_take_the_allow_nil_option | |
| - assert_raise(ArgumentError) do | |
| - Artist.class_eval do | |
| - validates_decorator :start_year, :allow_nil => true | |
| - end | |
| - end | |
| - end | |
| - | |
| - def test_should_not_take_the_allow_blank_option | |
| - assert_raise(ArgumentError) do | |
| - Artist.class_eval do | |
| - validates_decorator :start_year, :allow_blank => true | |
| - end | |
| - end | |
| - end | |
| -end | |
| \ No newline at end of file | |
| diff --git a/activerecord/test/cases/attribute_view_test.rb b/activerecord/test/cases/attribute_view_test.rb | |
| new file mode 100644 | |
| index 0000000..3d60b1c | |
| --- /dev/null | |
| +++ b/activerecord/test/cases/attribute_view_test.rb | |
| @@ -0,0 +1,191 @@ | |
| +require "cases/helper" | |
| +require 'models/artist' | |
| + | |
| +class AttributeViewClassMethodTest < ActiveRecord::TestCase | |
| + def test_should_take_a_name_for_the_view_and_define_a_reader_and_writer_method_for_it | |
| + %w{ date_of_birth date_of_birth= }.each { |method| assert Artist.instance_methods.include?(method) } | |
| + end | |
| + | |
| + def test_should_not_take_any_options_for_the_view_other_than_class_and_class_name_and_decorating | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + view :foo, :some_other_option => true | |
| + end | |
| + end | |
| + end | |
| +end | |
| + | |
| +class AttributeViewInGeneralTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| + end | |
| + | |
| + def test_should_also_work_with_an_anonymous_wrapper_class | |
| + Artist.class_eval do | |
| + view :date_of_birth, :decorating => [:day, :month, :year], :as => (Class.new(AttributeViews::CompositeDate) do | |
| + # Reversed implementation of the super class. | |
| + def to_s | |
| + "#{@year}-#{@month}-#{@day}" | |
| + end | |
| + end) | |
| + end | |
| + | |
| + 2.times { assert_equal "1999-12-31", @artist.date_of_birth.to_s } | |
| + | |
| + Artist.class_eval do | |
| + view :date_of_birth, :as => AttributeViews::CompositeDate, :decorating => [:day, :month, :year] | |
| + end | |
| + end | |
| + | |
| + def test_should_reset_the_before_type_cast_values_on_reload | |
| + @artist.date_of_birth = '01-01-1111' | |
| + Artist.find(@artist.id).update_attribute(:day, 13) | |
| + @artist.reload | |
| + | |
| + assert_equal "13-12-1999", @artist.date_of_birth_before_type_cast | |
| + end | |
| +end | |
| + | |
| +class AttributeViewForMultipleAttributesTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:day => 31, :month => 12, :year => 1999) | |
| + @view = @artist.date_of_birth | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_view_class_specified_by_the_class_name_option | |
| + assert_instance_of AttributeViews::CompositeDate, @artist.date_of_birth | |
| + end | |
| + | |
| + def test_should_have_assigned_the_values_it_decorates_to_the_view_instance | |
| + assert_equal 31, @view.day | |
| + assert_equal 12, @view.month | |
| + assert_equal 1999, @view.year | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.date_of_birth = '01-02-2000' | |
| + assert_equal '01-02-2000', @artist.date_of_birth_before_type_cast | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| + date_of_birth_as_string = @artist.date_of_birth.to_s | |
| + @artist.reload | |
| + assert_equal date_of_birth_as_string, @artist.date_of_birth_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_them_to_the_model_instance | |
| + @artist.date_of_birth = '01-02-2000' | |
| + assert_equal 1, @artist.day | |
| + assert_equal 2, @artist.month | |
| + assert_equal 2000, @artist.year | |
| + end | |
| +end | |
| + | |
| +class AttributeViewForOneAttributeTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:location => 'amsterdam') | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_view_class_specified_by_the_as_option | |
| + assert_instance_of AttributeViews::GPSCoordinator, @artist.gps_location | |
| + end | |
| + | |
| + def test_should_have_assigned_the_value_to_decorate_to_the_view_instance | |
| + assert_equal 'amsterdam', @artist.gps_location.location | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.gps_location = 'rotterdam' | |
| + assert_equal 'rotterdam', @artist.gps_location_before_type_cast | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_just_read_from_the_database | |
| + gps_location_as_string = @artist.gps_location.to_s | |
| + @artist.reload | |
| + assert_equal gps_location_as_string, @artist.gps_location_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| + @artist.gps_location = 'amsterdam' | |
| + assert_equal '+1, +1', @artist.location | |
| + | |
| + @artist.gps_location = 'rotterdam' | |
| + assert_equal '-1, -1', @artist.location | |
| + end | |
| +end | |
| + | |
| +class AttributeViewForAnAlreadyExistingAttributeTest < ActiveRecord::TestCase | |
| + def setup | |
| + @artist = Artist.create(:start_year => 1999) | |
| + @view = @artist.start_year | |
| + end | |
| + | |
| + def test_should_return_an_instance_of_the_view_class_specified_by_the_as_option | |
| + assert_instance_of AttributeViews::GPSCoordinator, @artist.gps_location | |
| + end | |
| + | |
| + def test_should_have_assigned_the_value_to_decorate_to_the_view_instance | |
| + assert_equal 1999, @view.start_year | |
| + end | |
| + | |
| + def test_should_return_the_value_before_type_cast_when_the_value_was_set_with_the_setter | |
| + @artist.start_year = '40 bc' | |
| + assert_equal '40 bc', @artist.start_year_before_type_cast | |
| + end | |
| + | |
| + def test_should_parse_and_write_the_value_assigned_through_the_setter_method_and_assign_it_to_the_model_instance | |
| + @artist.start_year = '40 bc' | |
| + assert_equal -41, @artist.read_attribute(:start_year) | |
| + end | |
| +end | |
| + | |
| +class AttributeViewValidatorTest < ActiveRecord::TestCase | |
| + def teardown | |
| + Artist.instance_variable_set(:@validate_callbacks, []) | |
| + Artist.instance_variable_set(:@validate_on_update_callbacks, []) | |
| + end | |
| + | |
| + def test_should_delegate_validation_to_the_view | |
| + Artist.class_eval do | |
| + validates_view :date_of_birth, :start_year | |
| + end | |
| + | |
| + artist = Artist.create(:start_year => 1999) | |
| + | |
| + artist.start_year = 40 | |
| + assert artist.valid? | |
| + | |
| + artist.start_year = 'abcde' | |
| + assert !artist.valid? | |
| + assert_equal "is invalid", artist.errors.on(:start_year) | |
| + end | |
| + | |
| + def test_should_take_an_options_hash_for_more_detailed_configuration | |
| + Artist.class_eval do | |
| + validates_view :start_year, :message => 'is not a valid date', :on => :update | |
| + end | |
| + | |
| + artist = Artist.new(:start_year => 'abcde') | |
| + assert artist.valid? | |
| + | |
| + artist.save! | |
| + assert !artist.valid? | |
| + assert_equal 'is not a valid date', artist.errors.on(:start_year) | |
| + end | |
| + | |
| + def test_should_not_take_the_allow_nil_option | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + validates_view :start_year, :allow_nil => true | |
| + end | |
| + end | |
| + end | |
| + | |
| + def test_should_not_take_the_allow_blank_option | |
| + assert_raise(ArgumentError) do | |
| + Artist.class_eval do | |
| + validates_view :start_year, :allow_blank => true | |
| + end | |
| + end | |
| + end | |
| +end | |
| \ No newline at end of file | |
| diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb | |
| index ebb7e72..e95d7ab 100755 | |
| --- a/activerecord/test/cases/base_test.rb | |
| +++ b/activerecord/test/cases/base_test.rb | |
| @@ -1246,12 +1246,12 @@ class BasicsTest < ActiveRecord::TestCase | |
| end | |
| def test_clone_with_attribute_decorator_of_same_name_as_attribute | |
| - dev = DeveloperWithAttributeDecorator.find(1) | |
| - assert_kind_of DeveloperSalaryDecorator, dev.salary | |
| + dev = DeveloperWithAttributeView.find(1) | |
| + assert_kind_of DeveloperSalaryView, dev.salary | |
| clone = nil | |
| assert_nothing_raised { clone = dev.clone } | |
| - assert_kind_of DeveloperSalaryDecorator, clone.salary | |
| + assert_kind_of DeveloperSalaryView, clone.salary | |
| assert_equal dev.salary.amount, clone.salary.amount | |
| assert clone.new_record? | |
| diff --git a/activerecord/test/cases/reflection_test.rb b/activerecord/test/cases/reflection_test.rb | |
| index 6a4836e..9cb7083 100644 | |
| --- a/activerecord/test/cases/reflection_test.rb | |
| +++ b/activerecord/test/cases/reflection_test.rb | |
| @@ -92,28 +92,28 @@ class ReflectionTest < ActiveRecord::TestCase | |
| assert_equal Money, Customer.reflect_on_aggregation(:balance).klass | |
| end | |
| - def test_attribute_decorator_reflection | |
| - reflection_for_date_of_birth = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| - :attribute_decorator, :date_of_birth, { | |
| - :class_name => 'Decorators::CompositeDate', | |
| - :decorates => [:day, :month, :year] | |
| + def test_attribute_view_reflection | |
| + reflection_for_date_of_birth = ActiveRecord::Reflection::AttributeViewReflection.new( | |
| + :view, :date_of_birth, { | |
| + :as => AttributeViews::CompositeDate, | |
| + :decorating => [:day, :month, :year] | |
| }, Artist | |
| ) | |
| - reflection_for_gps_location = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| - :attribute_decorator, :gps_location, { :class_name => 'Decorators::GPSCoordinator', :decorates => :location }, Artist | |
| + reflection_for_gps_location = ActiveRecord::Reflection::AttributeViewReflection.new( | |
| + :view, :gps_location, { :as => AttributeViews::GPSCoordinator, :decorating => :location }, Artist | |
| ) | |
| - reflection_for_start_year = ActiveRecord::Reflection::AttributeDecoratorReflection.new( | |
| - :attribute_decorator, :start_year, { :class_name => 'Decorators::Year' }, Artist | |
| + reflection_for_start_year = ActiveRecord::Reflection::AttributeViewReflection.new( | |
| + :view, :start_year, { :as => AttributeViews::Year }, Artist | |
| ) | |
| [reflection_for_date_of_birth, reflection_for_gps_location, reflection_for_start_year].each do |reflection| | |
| - assert Artist.reflect_on_all_attribute_decorators.include?(reflection) | |
| + assert Artist.reflect_on_all_attribute_views.include?(reflection) | |
| end | |
| - assert_equal reflection_for_date_of_birth, Artist.reflect_on_attribute_decorator(:date_of_birth) | |
| - assert_equal Decorators::CompositeDate, Artist.reflect_on_attribute_decorator(:date_of_birth).klass | |
| + assert_equal reflection_for_date_of_birth, Artist.reflect_on_attribute_view(:date_of_birth) | |
| + assert_equal AttributeViews::CompositeDate, Artist.reflect_on_attribute_view(:date_of_birth).klass | |
| end | |
| def test_has_many_reflection | |
| diff --git a/activerecord/test/models/artist.rb b/activerecord/test/models/artist.rb | |
| index f2e4d1b..2a5f7a6 100644 | |
| --- a/activerecord/test/models/artist.rb | |
| +++ b/activerecord/test/models/artist.rb | |
| @@ -1,81 +1,81 @@ | |
| -class Artist < ActiveRecord::Base | |
| - # Defines a non existing attribute decorating multiple existing attributes | |
| - attribute_decorator :date_of_birth, :class_name => 'Decorators::CompositeDate', :decorates => [:day, :month, :year] | |
| - | |
| - # Defines a decorates for one attribute. | |
| - attribute_decorator :gps_location, :class_name => 'Decorators::GPSCoordinator', :decorates => :location | |
| - | |
| - # Defines a decorator for an existing attribute. | |
| - attribute_decorator :start_year, :class_name => 'Decorators::Year' | |
| - | |
| - # These validations are defined inline in the test cases. See attribute_decorator_test.rb. | |
| - # | |
| - # validates_decorator :date_of_birth, :start_year | |
| - # validates_decorator :start_year, :message => 'is not a valid date', :on => :update | |
| -end | |
| - | |
| -module Decorators | |
| +module AttributeViews | |
| class CompositeDate | |
| attr_reader :day, :month, :year | |
| - | |
| + | |
| def self.parse(value) | |
| new *value.scan(/(\d\d)-(\d\d)-(\d{4})/).flatten.map { |x| x.to_i } | |
| end | |
| - | |
| + | |
| def initialize(day, month, year) | |
| @day, @month, @year = day, month, year | |
| end | |
| - | |
| + | |
| def valid? | |
| true | |
| end | |
| - | |
| + | |
| def to_a | |
| [@day, @month, @year] | |
| end | |
| - | |
| + | |
| def to_s | |
| "#{@day}-#{@month}-#{@year}" | |
| end | |
| end | |
| - | |
| + | |
| class GPSCoordinator | |
| attr_reader :location | |
| - | |
| + | |
| def self.parse(value) | |
| new(value == 'amsterdam' ? '+1, +1' : '-1, -1') | |
| end | |
| - | |
| + | |
| def initialize(location) | |
| @location = location | |
| end | |
| - | |
| + | |
| def to_a | |
| [@location] | |
| end | |
| - | |
| + | |
| def to_s | |
| @location | |
| end | |
| end | |
| - | |
| + | |
| class Year | |
| attr_reader :start_year | |
| - | |
| + | |
| def self.parse(value) | |
| new(value == '40 bc' ? -41 : value.to_i) | |
| end | |
| - | |
| + | |
| def initialize(start_year) | |
| @start_year = start_year | |
| end | |
| - | |
| + | |
| def valid? | |
| @start_year != 0 | |
| end | |
| - | |
| + | |
| def to_a | |
| [@start_year] | |
| end | |
| end | |
| +end | |
| + | |
| +class Artist < ActiveRecord::Base | |
| + # Defines a non existing attribute decorating multiple existing attributes | |
| + view :date_of_birth, :as => AttributeViews::CompositeDate, :decorating => [:day, :month, :year] | |
| + | |
| + # Defines a decorates for one attribute. | |
| + view :gps_location, :as => AttributeViews::GPSCoordinator, :decorating => :location | |
| + | |
| + # Defines a decorator for an existing attribute. | |
| + view :start_year, :as => AttributeViews::Year | |
| + | |
| + # These validations are defined inline in the test cases. See attribute_decorator_test.rb. | |
| + # | |
| + # validates_view :date_of_birth, :start_year | |
| + # validates_view :start_year, :message => 'is not a valid date', :on => :update | |
| end | |
| \ No newline at end of file | |
| diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb | |
| index 14357bc..289bea2 100644 | |
| --- a/activerecord/test/models/developer.rb | |
| +++ b/activerecord/test/models/developer.rb | |
| @@ -70,10 +70,10 @@ ActiveSupport::Deprecation.silence do | |
| end | |
| end | |
| -DeveloperSalaryDecorator = Struct.new(:amount) | |
| -class DeveloperWithAttributeDecorator < ActiveRecord::Base | |
| +DeveloperSalaryView = Struct.new(:amount) | |
| +class DeveloperWithAttributeView < ActiveRecord::Base | |
| self.table_name = 'developers' | |
| - attribute_decorator :salary, :class => DeveloperSalaryDecorator | |
| + view :salary, :as => DeveloperSalaryView | |
| end | |
| class DeveloperWithBeforeDestroyRaise < ActiveRecord::Base | |
| -- | |
| 1.5.5.3 | |
| From 553d02f2f05cd1a0a8d6a992828a874b7111d8a6 Mon Sep 17 00:00:00 2001 | |
| From: Eloy Duran <eloy.de.enige@gmail.com> | |
| Date: Wed, 10 Dec 2008 21:43:18 +0100 | |
| Subject: [PATCH] Updated documentation for the API update. | |
| --- | |
| activerecord/lib/active_record/attribute_view.rb | 47 +++++++++++----------- | |
| activerecord/test/models/artist.rb | 8 ++-- | |
| 2 files changed, 27 insertions(+), 28 deletions(-) | |
| diff --git a/activerecord/lib/active_record/attribute_view.rb b/activerecord/lib/active_record/attribute_view.rb | |
| index 5e9968a..a846309 100644 | |
| --- a/activerecord/lib/active_record/attribute_view.rb | |
| +++ b/activerecord/lib/active_record/attribute_view.rb | |
| @@ -13,26 +13,25 @@ module ActiveRecord | |
| end | |
| module ClassMethods | |
| - # Adds reader and writer methods for decorating one or more attributes: | |
| - # <tt>attribute_decorator :date_of_birth</tt> adds <tt>date_of_birth</tt> and <tt>date_of_birth=(new_date_of_birth)</tt> methods. | |
| + # Defines an attribute view, which adds a reader and a writer method for decorating one or more attributes: | |
| + # <tt>view :date_of_birth</tt> adds <tt>date_of_birth</tt> and <tt>date_of_birth=(new_date_of_birth)</tt> methods. | |
| # | |
| # Options are: | |
| - # * <tt>:class</tt> - specify the decorator class. | |
| - # * <tt>:class_name</tt> - specify the class name of the decorator class, | |
| - # this should be used if, at the time of loading the model class, the decorator class is not yet available. | |
| - # * <tt>:decorating</tt> - specifies the attributes that should be wrapped by the decorator class. | |
| - # Takes an array of attributes or a single attribute. If none is specified the same name as the name of the attribute_decorator is assumed. | |
| + # * <tt>:as</tt> - specify the attribute view class. | |
| + # * <tt>:decorating</tt> - specifies the attributes that should be wrapped by the attribute view class. | |
| + # Takes an array of attributes or a single attribute. If none is specified the same name as the name of the view is assumed. | |
| # | |
| - # The decorator class should implement a class method called <tt>parse</tt>, which takes 1 argument. | |
| - # In that method your decorator class is responsible for returning an instance of itself with the attribute(s) parsed and assigned. | |
| + # The attribute view class should implement a class method called <tt>parse</tt>, which should take 1 argument. | |
| + # In that method your attribute view class is responsible for returning an instance of itself with the attribute(s) parsed and assigned. | |
| # | |
| - # Your decorator class’s initialize method should take as it’s arguments the attributes that were specified | |
| - # to the <tt>:decorating</tt> option and in the same order as they were specified. | |
| + # Your attribute view class’s initialize method should take, as it’s arguments, the attributes that were specified | |
| + # with the <tt>:decorating</tt> option and in the same order as they were specified. | |
| # You should also implement a <tt>to_a</tt> method which should return the parsed values as an array, | |
| # again in the same order as specified with the <tt>:decorating</tt> option. | |
| + # Lastly, an implementation of <tt>to_s</tt> is needed which will be used by, for instance, the form helpers. | |
| # | |
| - # If you wish to use <tt>validates_decorator</tt>, your decorator class should also implement a <tt>valid?</tt> instance method, | |
| - # which is responsible for checking the validity of the value(s). See <tt>validates_decorator</tt> for more info. | |
| + # If you wish to use <tt>validates_view</tt>, your attribute view class should also implement a <tt>valid?</tt> instance method, | |
| + # which is responsible for checking the validity of the value(s). See <tt>validates_view</tt> for more info. | |
| # | |
| # class CompositeDate | |
| # attr_accessor :day, :month, :year | |
| @@ -53,7 +52,7 @@ module ActiveRecord | |
| # [@day, @month, @year] | |
| # end | |
| # | |
| - # # Here we return a string representation of the value, this will for instance be used by the form helpers. | |
| + # # Here we return a string representation of the value, this will, for instance, be used by the form helpers. | |
| # def to_s | |
| # "#{@day}-#{@month}-#{@year}" | |
| # end | |
| @@ -65,16 +64,16 @@ module ActiveRecord | |
| # end | |
| # | |
| # class Artist < ActiveRecord::Base | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| - # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # view :date_of_birth, :as => CompositeDate, :decorating => [:day, :month, :year] | |
| + # validates_view :date_of_birth, :message => 'is not a valid date' | |
| # end | |
| # | |
| # Option examples: | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| - # attribute_decorator :gps_location, :class_name => 'GPSCoordinator', :decorating => :location | |
| - # attribute_decorator :balance, :class_name => 'Money' | |
| - # attribute_decorator :english_date_of_birth, :class => (Class.new(CompositeDate) do | |
| - # # This is a anonymous subclass of CompositeDate that supports the date in English order | |
| + # view :date_of_birth, :as => CompositeDate, :decorating => [:day, :month, :year] | |
| + # view :gps_location, :as => 'GPSCoordinator', :decorating => :location | |
| + # view :balance, :as => Money | |
| + # view :english_date_of_birth, :as => (Class.new(CompositeDate) do | |
| + # # This is an anonymous subclass of CompositeDate that supports the date in English order | |
| # def to_s | |
| # "#{@month}/#{@day}/#{@year}" | |
| # end | |
| @@ -99,7 +98,7 @@ module ActiveRecord | |
| create_reflection(:view, attr, options, self) | |
| end | |
| - # Validates wether the decorated attribute is valid by sending the decorator instance the <tt>valid?</tt> message. | |
| + # Validates wether the attribute view is valid by sending it the <tt>valid?</tt> message. | |
| # | |
| # class CompositeDate | |
| # attr_accessor :day, :month, :year | |
| @@ -128,8 +127,8 @@ module ActiveRecord | |
| # end | |
| # | |
| # class Artist < ActiveRecord::Base | |
| - # attribute_decorator :date_of_birth, :class => CompositeDate, :decorating => [:day, :month, :year] | |
| - # validates_decorator :date_of_birth, :message => 'is not a valid date' | |
| + # view :date_of_birth, :as => CompositeDate, :decorating => [:day, :month, :year] | |
| + # validates_view :date_of_birth, :message => 'is not a valid date' | |
| # end | |
| # | |
| # artist = Artist.new | |
| diff --git a/activerecord/test/models/artist.rb b/activerecord/test/models/artist.rb | |
| index 2a5f7a6..02e1cce 100644 | |
| --- a/activerecord/test/models/artist.rb | |
| +++ b/activerecord/test/models/artist.rb | |
| @@ -65,16 +65,16 @@ module AttributeViews | |
| end | |
| class Artist < ActiveRecord::Base | |
| - # Defines a non existing attribute decorating multiple existing attributes | |
| + # Defines an attribute view decorating multiple existing attributes | |
| view :date_of_birth, :as => AttributeViews::CompositeDate, :decorating => [:day, :month, :year] | |
| - # Defines a decorates for one attribute. | |
| + # Defines a view for one attribute. | |
| view :gps_location, :as => AttributeViews::GPSCoordinator, :decorating => :location | |
| - # Defines a decorator for an existing attribute. | |
| + # Defines a view for an existing attribute. | |
| view :start_year, :as => AttributeViews::Year | |
| - # These validations are defined inline in the test cases. See attribute_decorator_test.rb. | |
| + # These validations are defined inline in the test cases. See attribute_view_test.rb. | |
| # | |
| # validates_view :date_of_birth, :start_year | |
| # validates_view :start_year, :message => 'is not a valid date', :on => :update | |
| -- | |
| 1.5.5.3 | |
| From 87f51f38260974cab7d129c0cb116fad5c88ed71 Mon Sep 17 00:00:00 2001 | |
| From: Eloy Duran <eloy.de.enige@gmail.com> | |
| Date: Wed, 10 Dec 2008 21:57:37 +0100 | |
| Subject: [PATCH] Updated composed_of deprecation warning to point to ActiveRecord::AttributeView::view. | |
| --- | |
| activerecord/lib/active_record/aggregations.rb | 2 +- | |
| activerecord/test/cases/base_test.rb | 2 +- | |
| 2 files changed, 2 insertions(+), 2 deletions(-) | |
| diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb | |
| index 04a67ae..94e1a4d 100644 | |
| --- a/activerecord/lib/active_record/aggregations.rb | |
| +++ b/activerecord/lib/active_record/aggregations.rb | |
| @@ -192,7 +192,7 @@ module ActiveRecord | |
| # :converter => Proc.new { |ip| ip.is_a?(Integer) ? IPAddr.new(ip, Socket::AF_INET) : IPAddr.new(ip.to_s) } | |
| # | |
| def composed_of(part_id, options = {}, &block) | |
| - ActiveSupport::Deprecation.warn("ActiveRecord::Aggregations::composed_of has been deprecated. Please use ActiveRecord::AttributeDecorator::attribute_decorator.") | |
| + ActiveSupport::Deprecation.warn("ActiveRecord::Aggregations::composed_of has been deprecated. Please use ActiveRecord::AttributeView::view.") | |
| options.assert_valid_keys(:class_name, :mapping, :allow_nil, :constructor, :converter) | |
| diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb | |
| index e95d7ab..84a2ae3 100755 | |
| --- a/activerecord/test/cases/base_test.rb | |
| +++ b/activerecord/test/cases/base_test.rb | |
| @@ -1245,7 +1245,7 @@ class BasicsTest < ActiveRecord::TestCase | |
| assert clone.id != dev.id | |
| end | |
| - def test_clone_with_attribute_decorator_of_same_name_as_attribute | |
| + def test_clone_with_attribute_view_of_same_name_as_attribute | |
| dev = DeveloperWithAttributeView.find(1) | |
| assert_kind_of DeveloperSalaryView, dev.salary | |
| -- | |
| 1.5.5.3 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment