diff options
5 files changed, 22 insertions, 24 deletions
diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb index d6f7359055..85a994b27a 100644 --- a/activerecord/lib/active_record/associations/preloader/association.rb +++ b/activerecord/lib/active_record/associations/preloader/association.rb @@ -116,7 +116,7 @@ module ActiveRecord def build_scope scope = klass.scope_for_association - if reflection.type + if reflection.type && !reflection.through_reflection? scope.where!(reflection.type => model.polymorphic_name) end diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index a6b7ab80a2..25254e652a 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -7,10 +7,9 @@ module ActiveRecord def run(preloader) already_loaded = owners.first.association(through_reflection.name).loaded? through_scope = through_scope() - reflection_scope = target_reflection_scope through_preloaders = preloader.preload(owners, through_reflection.name, through_scope) middle_records = through_preloaders.flat_map(&:preloaded_records) - preloaders = preloader.preload(middle_records, source_reflection.name, reflection_scope) + preloaders = preloader.preload(middle_records, source_reflection.name, scope) @preloaded_records = preloaders.flat_map(&:preloaded_records) owners.each do |owner| @@ -25,18 +24,18 @@ module ActiveRecord owner.association(through_reflection.name).reset if through_scope end result = through_records.flat_map do |record| - association = record.association(source_reflection.name) - target = association.target - association.reset if preload_scope - target + record.association(source_reflection.name).target end result.compact! - if reflection_scope - result.sort_by! { |rhs| preload_index[rhs] } if reflection_scope.order_values.any? - result.uniq! if reflection_scope.distinct_value - end + result.sort_by! { |rhs| preload_index[rhs] } if scope.order_values.any? + result.uniq! if scope.distinct_value associate_records_to_owner(owner, result) end + unless scope.empty_scope? + middle_records.each do |owner| + owner.association(source_reflection.name).reset + end + end end private @@ -91,16 +90,6 @@ module ActiveRecord scope unless scope.empty_scope? end - - def target_reflection_scope - if preload_scope - reflection_scope.merge(preload_scope) - elsif reflection.scope - reflection_scope - else - nil - end - end end end end diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb index 5fdc5a92fc..38e25a9100 100644 --- a/activerecord/test/cases/associations/has_many_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_associations_test.rb @@ -2080,10 +2080,12 @@ class HasManyAssociationsTest < ActiveRecord::TestCase end def test_associations_order_should_be_priority_over_throughs_order - david = authors(:david) + original = authors(:david) expected = [12, 10, 9, 8, 7, 6, 5, 3, 2, 1] - assert_equal expected, david.comments_desc.map(&:id) - assert_equal expected, Author.includes(:comments_desc).find(david.id).comments_desc.map(&:id) + assert_equal expected, original.comments_desc.map(&:id) + preloaded = Author.includes(:comments_desc).find(original.id) + assert_equal expected, preloaded.comments_desc.map(&:id) + assert_equal original.posts_sorted_by_id.first.comments.map(&:id), preloaded.posts_sorted_by_id.first.comments.map(&:id) end def test_dynamic_find_should_respect_association_order_for_through diff --git a/activerecord/test/cases/associations/nested_through_associations_test.rb b/activerecord/test/cases/associations/nested_through_associations_test.rb index 5821744530..0b83fd8421 100644 --- a/activerecord/test/cases/associations/nested_through_associations_test.rb +++ b/activerecord/test/cases/associations/nested_through_associations_test.rb @@ -610,6 +610,12 @@ class NestedThroughAssociationsTest < ActiveRecord::TestCase assert_equal hotel, Hotel.joins(:cake_designers, :drink_designers).take end + def test_has_many_through_reset_source_reflection_after_loading_is_complete + preloaded = Category.preload(:ordered_post_comments).find(1, 2).last + original = Category.find(2) + assert_equal original.ordered_post_comments.ids, preloaded.ordered_post_comments.ids + end + private def assert_includes_and_joins_equal(query, expected, association) diff --git a/activerecord/test/models/category.rb b/activerecord/test/models/category.rb index 2ccc00bed9..8c86879dc6 100644 --- a/activerecord/test/models/category.rb +++ b/activerecord/test/models/category.rb @@ -26,6 +26,7 @@ class Category < ActiveRecord::Base has_many :categorizations has_many :special_categorizations has_many :post_comments, through: :posts, source: :comments + has_many :ordered_post_comments, -> { order(id: :desc) }, through: :posts, source: :comments has_many :authors, through: :categorizations has_many :authors_with_select, -> { select "authors.*, categorizations.post_id" }, through: :categorizations, source: :author |