diff options
Diffstat (limited to 'lib/sqlalchemy/orm/attributes.py')
| -rw-r--r-- | lib/sqlalchemy/orm/attributes.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/attributes.py b/lib/sqlalchemy/orm/attributes.py index 83069f113..aa2986205 100644 --- a/lib/sqlalchemy/orm/attributes.py +++ b/lib/sqlalchemy/orm/attributes.py @@ -47,6 +47,8 @@ from .base import state_str from .. import event from .. import inspection from .. import util +from ..sql import base as sql_base +from ..sql import visitors @inspection._self_inspects @@ -54,6 +56,7 @@ class QueryableAttribute( interfaces._MappedAttribute, interfaces.InspectionAttr, interfaces.PropComparator, + sql_base.HasCacheKey, ): """Base class for :term:`descriptor` objects that intercept attribute events on behalf of a :class:`.MapperProperty` @@ -102,6 +105,13 @@ class QueryableAttribute( if base[key].dispatch._active_history: self.dispatch._active_history = True + _cache_key_traversal = [ + # ("class_", visitors.ExtendedInternalTraversal.dp_plain_obj), + ("key", visitors.ExtendedInternalTraversal.dp_string), + ("_parententity", visitors.ExtendedInternalTraversal.dp_multi), + ("_of_type", visitors.ExtendedInternalTraversal.dp_multi), + ] + @util.memoized_property def _supports_population(self): return self.impl.supports_population |