From f3f652827f1db772741d56664cd3fb583873d0cd Mon Sep 17 00:00:00 2001 From: Ryuta Kamizono Date: Tue, 23 May 2017 00:11:52 +0900 Subject: [PATCH] Fix crashing on circular left join references with scoping Follow up of #25702. --- activerecord/lib/active_record/reflection.rb | 2 +- .../test/cases/scoping/relation_scoping_test.rb | 11 +++++++++-- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 1a9e0a4a40..65fdbc2fe4 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -199,7 +199,7 @@ def join_scopes(table, predicate_builder) # :nodoc: def klass_join_scope(table, predicate_builder) # :nodoc: if klass.current_scope klass.current_scope.clone.tap { |scope| - scope.joins_values = [] + scope.joins_values = scope.left_outer_joins_values = [].freeze } else relation = ActiveRecord::Relation.create( diff --git a/activerecord/test/cases/scoping/relation_scoping_test.rb b/activerecord/test/cases/scoping/relation_scoping_test.rb index 3fbff7664b..8535be8402 100644 --- a/activerecord/test/cases/scoping/relation_scoping_test.rb +++ b/activerecord/test/cases/scoping/relation_scoping_test.rb @@ -229,12 +229,19 @@ def test_current_scope_does_not_pollute_sibling_subclasses end end - def test_circular_joins_with_current_scope_does_not_crash + def test_circular_joins_with_scoping_does_not_crash posts = Post.joins(comments: :post).scoping do - Post.current_scope.first(10) + Post.first(10) end assert_equal posts, Post.joins(comments: :post).first(10) end + + def test_circular_left_joins_with_scoping_does_not_crash + posts = Post.left_joins(comments: :post).scoping do + Post.first(10) + end + assert_equal posts, Post.left_joins(comments: :post).first(10) + end end class NestedRelationScopingTest < ActiveRecord::TestCase -- GitLab