diff options
Diffstat (limited to 'lib/sqlalchemy/orm/attributes.py')
| -rw-r--r-- | lib/sqlalchemy/orm/attributes.py | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py index 610ee2726..d1ed17f1a 100644 --- a/lib/sqlalchemy/orm/attributes.py +++ b/lib/sqlalchemy/orm/attributes.py @@ -54,6 +54,13 @@ from ..sql import traversals from ..sql import visitors +class NoKey(str): + pass + + +NO_KEY = NoKey("no name") + + @inspection._self_inspects class QueryableAttribute( interfaces._MappedAttribute, @@ -214,10 +221,15 @@ class QueryableAttribute( subclass representing a column expression. """ + if self.key is NO_KEY: + annotations = {"entity_namespace": self._entity_namespace} + else: + annotations = { + "proxy_key": self.key, + "entity_namespace": self._entity_namespace, + } - return self.comparator.__clause_element__()._annotate( - {"proxy_key": self.key, "entity_namespace": self._entity_namespace} - ) + return self.comparator.__clause_element__()._annotate(annotations) @property def _entity_namespace(self): |