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fix ActiveModel::AttributeMethods#alias_attribute documentation [ci skip]

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This commit is contained in:
Francesco Rodriguez 2012-06-21 12:51:39 -05:00
parent bf3332bfdf
commit b5b350ad5c
1 changed files with 20 additions and 7 deletions
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27
activemodel/lib/active_model/attribute_methods.rb
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@ -78,8 +78,8 @@ module ActiveModel
# at least the +attr+ argument.
#
# class Person
#
# include ActiveModel::AttributeMethods
#
# attr_accessor :name
# attribute_method_prefix 'clear_'
# define_attribute_methods :name
@ -114,8 +114,8 @@ module ActiveModel
# least the +attr+ argument.
#
# class Person
#
# include ActiveModel::AttributeMethods
#
# attr_accessor :name
# attribute_method_suffix '_short?'
# define_attribute_methods :name
@ -150,8 +150,8 @@ module ActiveModel
# accept at least the +attr+ argument.
#
# class Person
#
# include ActiveModel::AttributeMethods
#
# attr_accessor :name
# attribute_method_affix prefix: 'reset_', suffix: '_to_default!'
# define_attribute_methods :name
@ -176,14 +176,27 @@ module ActiveModel
# Allows you to make aliases for attributes.
#
# class Person
# include ActiveModel::AttributeMethods
#
# attr_accessor :name
# attribute_method_suffix '_short?'
# define_attribute_methods :name
#
# alias_attribute :nickname, :name
#
# private
#
# def attribute_short?(attr)
# send(attr).length < 5
# end
# end
#
# person = Person.new
# person.nickname = 'Bob'
# person.nickname # => "Bob"
# person.name # => "Bob"
# person.name = 'Bob'
# person.name # => "Bob"
# person.nickname # => "Bob"
# person.name_short? # => true
# person.nickname_short? # => true
def alias_attribute(new_name, old_name)
attribute_method_matchers.each do |matcher|
matcher_new = matcher.method_name(new_name).to_s
@ -200,8 +213,8 @@ module ActiveModel
# methods, or they will not hook in.
#
# class Person
#
# include ActiveModel::AttributeMethods
#
# attr_accessor :name, :age, :address
# attribute_method_prefix 'clear_'
#