diff options
Diffstat (limited to 'activemodel/lib/active_model/attribute_methods.rb')
| -rw-r--r-- | activemodel/lib/active_model/attribute_methods.rb | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/activemodel/lib/active_model/attribute_methods.rb b/activemodel/lib/active_model/attribute_methods.rb index 97a83e58af..99918fdb96 100644 --- a/activemodel/lib/active_model/attribute_methods.rb +++ b/activemodel/lib/active_model/attribute_methods.rb @@ -28,7 +28,7 @@ module ActiveModel # attribute_method_affix :prefix => 'reset_', :suffix => '_to_default!' # attribute_method_suffix '_contrived?' # attribute_method_prefix 'clear_' - # define_attribute_methods ['name'] + # define_attribute_methods 'name' # # attr_accessor :name # @@ -86,7 +86,7 @@ module ActiveModel # include ActiveModel::AttributeMethods # attr_accessor :name # attribute_method_prefix 'clear_' - # define_attribute_methods [:name] + # define_attribute_methods :name # # private # @@ -124,7 +124,7 @@ module ActiveModel # include ActiveModel::AttributeMethods # attr_accessor :name # attribute_method_suffix '_short?' - # define_attribute_methods [:name] + # define_attribute_methods :name # # private # @@ -162,7 +162,7 @@ module ActiveModel # include ActiveModel::AttributeMethods # attr_accessor :name # attribute_method_affix :prefix => 'reset_', :suffix => '_to_default!' - # define_attribute_methods [:name] + # define_attribute_methods :name # # private # @@ -180,6 +180,18 @@ module ActiveModel undefine_attribute_methods end + + # Allows you to make aliases for attributes. + # + # class Person + # attr_accessor :name + # alias_attribute :nickname, :name + # end + # + # person = Person.new + # person.nickname = "Bob" + # person.nickname # => "Bob" + # person.name # => "Bob" def alias_attribute(new_name, old_name) attribute_method_matchers.each do |matcher| matcher_new = matcher.method_name(new_name).to_s @@ -204,7 +216,7 @@ module ActiveModel # # Call to define_attribute_methods must appear after the # # attribute_method_prefix, attribute_method_suffix or # # attribute_method_affix declares. - # define_attribute_methods [:name, :age, :address] + # define_attribute_methods :name, :age, :address # # private # @@ -212,8 +224,8 @@ module ActiveModel # ... # end # end - def define_attribute_methods(attr_names) - attr_names.each { |attr_name| define_attribute_method(attr_name) } + def define_attribute_methods(*attr_names) + attr_names.flatten.each { |attr_name| define_attribute_method(attr_name) } end def define_attribute_method(attr_name) @@ -243,11 +255,7 @@ module ActiveModel # Returns true if the attribute methods defined have been generated. def generated_attribute_methods #:nodoc: - @generated_attribute_methods ||= begin - mod = Module.new - include mod - mod - end + @generated_attribute_methods ||= Module.new.tap { |mod| include mod } end protected |