diff options
Diffstat (limited to 'activemodel/lib/active_model/dirty.rb')
| -rw-r--r-- | activemodel/lib/active_model/dirty.rb | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/activemodel/lib/active_model/dirty.rb b/activemodel/lib/active_model/dirty.rb index 977cccf5d0..c03e5fac79 100644 --- a/activemodel/lib/active_model/dirty.rb +++ b/activemodel/lib/active_model/dirty.rb @@ -26,10 +26,6 @@ module ActiveModel # # define_attribute_methods :name # - # def initialize(name = nil) - # @name = name - # end - # # def name # @name # end @@ -56,10 +52,10 @@ module ActiveModel # end # end # - # A newly instantiated object is unchanged: + # A newly instantiated +Person+ object is unchanged: # - # person = Person.new 'Uncle Bob' - # person.changed? # => false + # person = Person.new + # person.changed? # => false # # Change the name: # @@ -75,8 +71,8 @@ module ActiveModel # Save the changes: # # person.save - # person.changed? # => false - # person.name_changed? # => false + # person.changed? # => false + # person.name_changed? # => false # # Reset the changes: # @@ -88,20 +84,20 @@ module ActiveModel # # person.name = "Uncle Bob" # person.rollback! - # person.name # => "Bill" - # person.name_changed? # => false + # person.name # => "Bill" + # person.name_changed? # => false # # Assigning the same value leaves the attribute unchanged: # # person.name = 'Bill' - # person.name_changed? # => false - # person.name_change # => nil + # person.name_changed? # => false + # person.name_change # => nil # # Which attributes have changed? # # person.name = 'Bob' - # person.changed # => ["name"] - # person.changes # => {"name" => ["Bill", "Bob"]} + # person.changed # => ["name"] + # person.changes # => {"name" => ["Bill", "Bob"]} # # If an attribute is modified in-place then make use of # +[attribute_name]_will_change!+ to mark that the attribute is changing. @@ -110,9 +106,9 @@ module ActiveModel # not need to call +[attribute_name]_will_change!+ on Active Record models. # # person.name_will_change! - # person.name_change # => ["Bill", "Bill"] + # person.name_change # => ["Bill", "Bill"] # person.name << 'y' - # person.name_change # => ["Bill", "Billy"] + # person.name_change # => ["Bill", "Billy"] module Dirty extend ActiveSupport::Concern include ActiveModel::AttributeMethods @@ -122,7 +118,7 @@ module ActiveModel attribute_method_affix prefix: 'restore_', suffix: '!' end - # Returns +true+ if any attribute have unsaved changes, +false+ otherwise. + # Returns +true+ if any of the attributes have unsaved changes, +false+ otherwise. # # person.changed? # => false # person.name = 'bob' @@ -170,7 +166,7 @@ module ActiveModel @changed_attributes ||= ActiveSupport::HashWithIndifferentAccess.new end - # Handle <tt>*_changed?</tt> for +method_missing+. + # Handles <tt>*_changed?</tt> for +method_missing+. def attribute_changed?(attr, options = {}) #:nodoc: result = changes_include?(attr) result &&= options[:to] == __send__(attr) if options.key?(:to) @@ -178,7 +174,7 @@ module ActiveModel result end - # Handle <tt>*_was</tt> for +method_missing+. + # Handles <tt>*_was</tt> for +method_missing+. def attribute_was(attr) # :nodoc: attribute_changed?(attr) ? changed_attributes[attr] : __send__(attr) end @@ -190,6 +186,7 @@ module ActiveModel private + # Returns +true+ if attr_name is changed, +false+ otherwise. def changes_include?(attr_name) attributes_changed_by_setter.include?(attr_name) end @@ -201,18 +198,18 @@ module ActiveModel @changed_attributes = ActiveSupport::HashWithIndifferentAccess.new end - # Clear all dirty data: current changes and previous changes. + # Clears all dirty data: current changes and previous changes. def clear_changes_information # :doc: @previously_changed = ActiveSupport::HashWithIndifferentAccess.new @changed_attributes = ActiveSupport::HashWithIndifferentAccess.new end - # Handle <tt>*_change</tt> for +method_missing+. + # Handles <tt>*_change</tt> for +method_missing+. def attribute_change(attr) [changed_attributes[attr], __send__(attr)] if attribute_changed?(attr) end - # Handle <tt>*_will_change!</tt> for +method_missing+. + # Handles <tt>*_will_change!</tt> for +method_missing+. def attribute_will_change!(attr) return if attribute_changed?(attr) @@ -225,7 +222,7 @@ module ActiveModel set_attribute_was(attr, value) end - # Handle <tt>restore_*!</tt> for +method_missing+. + # Handles <tt>restore_*!</tt> for +method_missing+. def restore_attribute!(attr) if attribute_changed?(attr) __send__("#{attr}=", changed_attributes[attr]) @@ -234,7 +231,7 @@ module ActiveModel end # This is necessary because `changed_attributes` might be overridden in - # other implemntations (e.g. in `ActiveRecord`) + # other implementations (e.g. in `ActiveRecord`) alias_method :attributes_changed_by_setter, :changed_attributes # :nodoc: # Force an attribute to have a particular "before" value |