diff options
Diffstat (limited to 'lib/sqlalchemy/orm/unitofwork.py')
| -rw-r--r-- | lib/sqlalchemy/orm/unitofwork.py | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/sqlalchemy/orm/unitofwork.py b/lib/sqlalchemy/orm/unitofwork.py index 2964705a2..3ef2b2edf 100644 --- a/lib/sqlalchemy/orm/unitofwork.py +++ b/lib/sqlalchemy/orm/unitofwork.py @@ -86,9 +86,8 @@ def track_cascade_events(descriptor, prop): not sess._contains_state(newvalue_state): sess._save_or_update_state(newvalue_state) - if oldvalue is not None and \ - oldvalue is not attributes.PASSIVE_NO_RESULT and \ - prop._cascade.delete_orphan: + if oldvalue not in orm_util._none_tuple and \ + prop._cascade.delete_orphan: # possible to reach here with attributes.NEVER_SET ? oldvalue_state = attributes.instance_state(oldvalue) |