diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/association.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/association.rb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb index 5d0927f17d..0bb63b97ae 100644 --- a/activerecord/lib/active_record/associations/association.rb +++ b/activerecord/lib/active_record/associations/association.rb @@ -17,6 +17,23 @@ module ActiveRecord # CollectionAssociation # HasManyAssociation + ForeignAssociation # HasManyThroughAssociation + ThroughAssociation + # + # Associations in Active Record are middlemen between the object that + # holds the association, known as the <tt>owner</tt>, and the associated + # result set, known as the <tt>target</tt>. Association metadata is available in + # <tt>reflection</tt>, which is an instance of <tt>ActiveRecord::Reflection::AssociationReflection</tt>. + # + # For example, given + # + # class Blog < ActiveRecord::Base + # has_many :posts + # end + # + # blog = Blog.first + # + # The association of <tt>blog.posts</tt> has the object +blog+ as its + # <tt>owner</tt>, the collection of its posts as <tt>target</tt>, and + # the <tt>reflection</tt> object represents a <tt>:has_many</tt> macro. class Association #:nodoc: attr_reader :owner, :target, :reflection |