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Add test case for arel_attribute with a custom table

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Since #29301, `arel_attribute` respects a custom table name.
This commit is contained in:
Ryuta Kamizono 2017-09-27 13:25:14 +09:00
parent 48ef5e0ad5
commit 801ccab22a
2 changed files with 5 additions and 1 deletions
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4
activerecord/test/cases/relations_test.rb
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@ -1806,6 +1806,10 @@ class RelationTest < ActiveRecord::TestCase
assert_equal post, custom_post_relation.joins(:author).where!(title: post.title).take assert_equal post, custom_post_relation.joins(:author).where!(title: post.title).take
end end
test "arel_attribute respects a custom table" do
assert_equal [posts(:welcome)], custom_post_relation.ranked_by_comments.limit_by(1).to_a
end
test "#load" do test "#load" do
relation = Post.all relation = Post.all
assert_queries(1) do assert_queries(1) do

2
activerecord/test/models/post.rb
View file

@ -21,7 +21,7 @@ class Post < ActiveRecord::Base
scope :containing_the_letter_a, -> { where("body LIKE '%a%'") } scope :containing_the_letter_a, -> { where("body LIKE '%a%'") }
scope :titled_with_an_apostrophe, -> { where("title LIKE '%''%'") } scope :titled_with_an_apostrophe, -> { where("title LIKE '%''%'") }
scope :ranked_by_comments, -> { order("comments_count DESC") } scope :ranked_by_comments, -> { order(arel_attribute(:comments_count).desc) }
scope :limit_by, lambda { |l| limit(l) } scope :limit_by, lambda { |l| limit(l) }
scope :locked, -> { lock } scope :locked, -> { lock }