diff options
3 files changed, 18 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index 175019a72b..35e176622d 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -93,7 +93,9 @@ module ActiveRecord end def through_scope_attributes - scope.where_values_hash(through_association.reflection.name.to_s).except!(through_association.reflection.foreign_key) + scope.where_values_hash(through_association.reflection.name.to_s). + except!(through_association.reflection.foreign_key, + through_association.reflection.klass.inheritance_column) end def save_through_record(record) diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb index 8641584c0c..ad2aa99af5 100644 --- a/activerecord/test/cases/associations/has_many_through_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb @@ -1139,4 +1139,12 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase assert_equal 2, post.lazy_readers_unscope_skimmers.to_a.size assert_equal 2, post.lazy_people_unscope_skimmers.to_a.size end + + def test_has_many_through_add_with_sti_middle_relation + club = SuperClub.create!(name: 'Fight Club') + member = Member.create!(name: 'Tyler Durden') + + club.members << member + assert_equal 1, SuperMembership.where(member_id: member.id, club_id: club.id).count + end end diff --git a/activerecord/test/models/club.rb b/activerecord/test/models/club.rb index a762ad4bb5..6ceafe5858 100644 --- a/activerecord/test/models/club.rb +++ b/activerecord/test/models/club.rb @@ -14,3 +14,10 @@ class Club < ActiveRecord::Base "I'm sorry sir, this is a *private* club, not a *pirate* club" end end + +class SuperClub < ActiveRecord::Base + self.table_name = "clubs" + + has_many :memberships, class_name: 'SuperMembership', foreign_key: 'club_id' + has_many :members, through: :memberships +end |