diff options
Diffstat (limited to 'activerecord/lib/active_record/enum.rb')
-rw-r--r-- | activerecord/lib/active_record/enum.rb | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 3deb2d65f8..53dde5e564 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -63,6 +63,12 @@ module ActiveRecord # # Conversation.where("status <> ?", Conversation.statuses[:archived]) module Enum + DEFINED_ENUMS = {} # :nodoc: + + def enum_mapping_for(attr_name) # :nodoc: + DEFINED_ENUMS[attr_name.to_s] + end + def enum(definitions) klass = self definitions.each do |name, values| @@ -107,6 +113,8 @@ module ActiveRecord # def active!() update! status: :active end define_method("#{value}!") { update! name => value } end + + DEFINED_ENUMS[name.to_s] = enum_values end end end @@ -114,7 +122,28 @@ module ActiveRecord private def _enum_methods_module @_enum_methods_module ||= begin - mod = Module.new + mod = Module.new do + private + def save_changed_attribute(attr_name, value) + if (mapping = self.class.enum_mapping_for(attr_name)) + if attribute_changed?(attr_name) + old = changed_attributes[attr_name] + + if mapping[old] == value + changed_attributes.delete(attr_name) + end + else + old = clone_attribute_value(:read_attribute, attr_name) + + if old != value + changed_attributes[attr_name] = mapping.key old + end + end + else + super + end + end + end include mod mod end |