diff options
| -rw-r--r-- | activerecord/CHANGELOG.md | 8 | ||||
| -rw-r--r-- | activerecord/lib/active_record/autosave_association.rb | 5 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/has_many_through_associations_test.rb | 21 |
3 files changed, 30 insertions, 4 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 823597fc92..7305c2c738 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,11 @@ +* `has_many :through` associations will no longer save the through record + twice when added in an `after_create` callback defined before the + associations. + + Fixes #3798. + + *Sean Griffin* + * Detect in-place modifications of PG array types *Sean Griffin* diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb index b3c3e26c9f..dd92e29199 100644 --- a/activerecord/lib/active_record/autosave_association.rb +++ b/activerecord/lib/active_record/autosave_association.rb @@ -184,9 +184,7 @@ module ActiveRecord before_save :before_save_collection_association define_non_cyclic_method(save_method) { save_collection_association(reflection) } - # Doesn't use after_save as that would save associations added in after_create/after_update twice - after_create save_method - after_update save_method + after_save save_method elsif reflection.has_one? define_method(save_method) { save_has_one_association(reflection) } unless method_defined?(save_method) # Configures two callbacks instead of a single after_save so that @@ -364,6 +362,7 @@ module ActiveRecord raise ActiveRecord::Rollback unless saved end + @new_record_before_save = false end # reconstruct the scope now that we know the owner's id 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 ad2aa99af5..0fa34e829e 100644 --- a/activerecord/test/cases/associations/has_many_through_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb @@ -1139,7 +1139,7 @@ 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') @@ -1147,4 +1147,23 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase club.members << member assert_equal 1, SuperMembership.where(member_id: member.id, club_id: club.id).count end + + class ClubWithCallbacks < ActiveRecord::Base + self.table_name = 'clubs' + after_create :add_a_member + + has_many :memberships, inverse_of: :club, foreign_key: :club_id + has_many :members, through: :memberships + + def add_a_member + members << Member.last + end + end + + def test_has_many_with_callback_before_association + Member.create! + club = ClubWithCallbacks.create! + + assert_equal 1, club.reload.memberships.count + end end |