diff options
-rw-r--r-- | activerecord/CHANGELOG.md | 5 | ||||
-rw-r--r-- | activerecord/lib/active_record/associations/has_one_association.rb | 4 | ||||
-rw-r--r-- | activerecord/test/cases/associations/has_one_associations_test.rb | 2 |
3 files changed, 10 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index d2f2c745a0..c346b5d93d 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,8 @@ +* Setting a has_one association on a new record no longer causes an empty + transaction. + + *Dylan Thacker-Smith* + * Fix `AR::Relation#merge` sometimes failing to preserve `readonly(false)` flag. *thedarkone* diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb index 3ab1ea1ff4..0008600418 100644 --- a/activerecord/lib/active_record/associations/has_one_association.rb +++ b/activerecord/lib/active_record/associations/has_one_association.rb @@ -27,6 +27,8 @@ module ActiveRecord return self.target if !(target || record) if (target != record) || record.changed? + save &&= owner.persisted? + transaction_if(save) do remove_target!(options[:dependent]) if target && !target.destroyed? @@ -34,7 +36,7 @@ module ActiveRecord set_owner_attributes(record) set_inverse_instance(record) - if owner.persisted? && save && !record.save + if save && !record.save nullify_owner_attributes(record) set_owner_attributes(target) if target raise RecordNotSaved, "Failed to save the new associated #{reflection.name}." diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb index 4fdf9a9643..9cd4db8dc9 100644 --- a/activerecord/test/cases/associations/has_one_associations_test.rb +++ b/activerecord/test/cases/associations/has_one_associations_test.rb @@ -505,6 +505,8 @@ class HasOneAssociationsTest < ActiveRecord::TestCase assert_no_queries { company.account = nil } account = Account.find(2) assert_queries { company.account = account } + + assert_no_queries { Firm.new.account = account } end def test_has_one_assignment_triggers_save_on_change |