diff options
| -rw-r--r-- | activerecord/lib/active_record/reflection.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 0995750ecd..2026511e38 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -401,6 +401,16 @@ module ActiveRecord # has_many :tags, through: :taggings # end # + # class Tagging < ActiveRecord::Base + # belongs_to :post + # belongs_to :tag + # end + # + # tags_reflection = Post.reflect_on_association(:tags) + # + # taggings_reflection = tags_reflection.source_reflection + # #=> <ActiveRecord::Reflection::AssociationReflection: @macro=:belongs_to, @name=:tag, @active_record=Tagging, @plural_name="tags"> + # def source_reflection @source_reflection ||= source_reflection_names.collect { |name| through_reflection.klass.reflect_on_association(name) }.compact.first end |