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Make sure that a joins Relation can be merged with has_many :through …

…+ association proxy
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commit 672c29770eaace06a94a05752344164ab1860aac 1 parent cd6c235
Akira Matsuda amatsuda authored
6 activerecord/test/cases/associations/has_many_through_associations_test.rb
View
@@ -5,6 +5,7 @@
require 'models/job'
require 'models/reader'
require 'models/comment'
+require 'models/rating'
require 'models/tag'
require 'models/tagging'
require 'models/author'
@@ -582,6 +583,11 @@ def test_has_many_association_through_a_belongs_to_association
assert_equal post.author.author_favorites, post.author_favorites
end
+ def test_merge_join_association_with_has_many_through_association_proxy
+ author = authors(:mary)
+ assert_nothing_raised { author.comments.ratings.to_sql }
+ end
+
def test_has_many_association_through_a_has_many_association_with_nonstandard_primary_keys
assert_equal 2, owners(:blackbeard).toys.count
end
6 activerecord/test/models/author.rb
View
@@ -13,7 +13,11 @@ class Author < ActiveRecord::Base
has_many :posts_with_extension, :class_name => "Post"
has_one :post_about_thinking, -> { where("posts.title like '%thinking%'") }, :class_name => 'Post'
has_one :post_about_thinking_with_last_comment, -> { where("posts.title like '%thinking%'").includes(:last_comment) }, :class_name => 'Post'
- has_many :comments, :through => :posts
+ has_many :comments, through: :posts do
+ def ratings
+ Rating.joins(:comment).merge(self)
+ end
+ end
has_many :comments_containing_the_letter_e, :through => :posts, :source => :comments
has_many :comments_with_order_and_conditions, -> { order('comments.body').where("comments.body like 'Thank%'") }, :through => :posts, :source => :comments
has_many :comments_with_include, -> { includes(:post) }, :through => :posts, :source => :comments
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