Initial nested_has_many_through support [#1152]

2 files changed, 12 insertions, 4 deletions

diff --git a/activerecord/test/models/author.rb b/activerecord/test/models/author.rb
index 34bfd2d881..94810e2f34 100644
--- a/activerecord/test/models/author.rb
+++ b/activerecord/test/models/author.rb
@@ -83,14 +83,20 @@ class Author < ActiveRecord::Base
   has_many :author_favorites
   has_many :favorite_authors, :through => :author_favorites, :order => 'name'
 
-  has_many :tagging,  :through => :posts # through polymorphic has_one
-  has_many :taggings, :through => :posts, :source => :taggings # through polymorphic has_many
-  has_many :tags,     :through => :posts # through has_many :through
+  has_many :tagging,         :through => :posts # through polymorphic has_one
+  has_many :taggings,        :through => :posts, :source => :taggings # through polymorphic has_many
+  has_many :tags,            :through => :posts # through has_many :through (on source reflection + polymorphic)
+  has_many :distinct_tags,   :through => :posts, :source => :tags, :select => "DISTINCT tags.*", :order => "tags.name"
   has_many :post_categories, :through => :posts, :source => :categories
 
+  has_many :books
+  has_many :subscriptions,        :through => :books
+  has_many :subscribers,          :through => :subscriptions # through has_many :through (on through reflection)
+  has_many :distinct_subscribers, :through => :subscriptions, :source => :subscriber, :select => "DISTINCT subscribers.*", :order => "subscribers.nick"
+
   has_one :essay, :primary_key => :name, :as => :writer
 
-  belongs_to :author_address, :dependent => :destroy
+  belongs_to :author_address,       :dependent => :destroy
   belongs_to :author_address_extra, :dependent => :delete, :class_name => "AuthorAddress"
 
   scope :relation_include_posts, includes(:posts)
diff --git a/activerecord/test/models/book.rb b/activerecord/test/models/book.rb
index 1e030b4f59..d27d0af77c 100644
--- a/activerecord/test/models/book.rb
+++ b/activerecord/test/models/book.rb
@@ -1,4 +1,6 @@
 class Book < ActiveRecord::Base
+  has_many :authors
+
   has_many :citations, :foreign_key => 'book1_id'
   has_many :references, :through => :citations, :source => :reference_of, :uniq => true