diff options
Diffstat (limited to 'lib/sqlalchemy/orm/util.py')
| -rw-r--r-- | lib/sqlalchemy/orm/util.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/util.py b/lib/sqlalchemy/orm/util.py index dfa3ef852..43632ff13 100644 --- a/lib/sqlalchemy/orm/util.py +++ b/lib/sqlalchemy/orm/util.py @@ -932,7 +932,6 @@ def _attr_as_key(attr): else: return expression._column_as_key(attr) - _state_mapper = util.dottedgetter('manager.mapper') @inspection._inspects(object) @@ -950,6 +949,8 @@ def _inspect_mapped_object(instance): def _inspect_mapped_class(class_, configure=False): try: class_manager = attributes.manager_of_class(class_) + if not class_manager.is_mapped: + return None mapper = class_manager.mapper if configure and mapperlib.module._new_mappers: mapperlib.configure_mappers() |