diff options
Diffstat (limited to 'activerecord/lib/active_record/reflection.rb')
| -rw-r--r-- | activerecord/lib/active_record/reflection.rb | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 61005af83f..8614ef8751 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -153,6 +153,17 @@ module ActiveRecord end end + # Returns the AssociationReflection object specified in the <tt>:through</tt> option + # of a HasManyThrough or HasOneThrough association. Example: + # + # class Post < ActiveRecord::Base + # has_many :taggings + # has_many :tags, :through => :taggings + # end + # + # tags_reflection = Post.reflect_on_association(:tags) + # taggings_reflection = tags_reflection.through_reflection + # def through_reflection @through_reflection ||= options[:through] ? active_record.reflect_on_association(options[:through]) : false end @@ -168,7 +179,8 @@ module ActiveRecord # Gets the source of the through reflection. It checks both a singularized and pluralized form for <tt>:belongs_to</tt> or <tt>:has_many</tt>. # (The <tt>:tags</tt> association on Tagging below.) # - # class Post + # class Post < ActiveRecord::Base + # has_many :taggings # has_many :tags, :through => :taggings # end # |