diff options
Diffstat (limited to 'activerecord/lib/active_record/reflection.rb')
| -rw-r--r-- | activerecord/lib/active_record/reflection.rb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 17e388a1d4..c380b5c029 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -42,6 +42,7 @@ module ActiveRecord # Returns the AggregateReflection object for the named +aggregation+ (use the symbol). # # Account.reflect_on_aggregation(:balance) # => the balance AggregateReflection + # def reflect_on_aggregation(aggregation) reflection = reflections[aggregation] reflection if reflection.is_a?(AggregateReflection) @@ -56,6 +57,7 @@ module ActiveRecord # # Account.reflect_on_all_associations # returns an array of all associations # Account.reflect_on_all_associations(:has_many) # returns an array of all has_many associations + # def reflect_on_all_associations(macro = nil) association_reflections = reflections.values.grep(AssociationReflection) macro ? association_reflections.select { |reflection| reflection.macro == macro } : association_reflections @@ -65,6 +67,7 @@ module ActiveRecord # # Account.reflect_on_association(:owner) # returns the owner AssociationReflection # Invoice.reflect_on_association(:line_items).macro # returns :has_many + # def reflect_on_association(association) reflection = reflections[association] reflection if reflection.is_a?(AssociationReflection) @@ -383,6 +386,7 @@ module ActiveRecord # has_many :taggings # has_many :tags, :through => :taggings # end + # def source_reflection @source_reflection ||= source_reflection_names.collect { |name| through_reflection.klass.reflect_on_association(name) }.compact.first end @@ -397,6 +401,7 @@ module ActiveRecord # # tags_reflection = Post.reflect_on_association(:tags) # taggings_reflection = tags_reflection.through_reflection + # def through_reflection @through_reflection ||= active_record.reflect_on_association(options[:through]) end @@ -483,6 +488,7 @@ module ActiveRecord # Gets an array of possible <tt>:through</tt> source reflection names: # # [:singularized, :pluralized] + # def source_reflection_names @source_reflection_names ||= (options[:source] ? [options[:source]] : [name.to_s.singularize, name]).collect { |n| n.to_sym } end |