diff options
Diffstat (limited to 'lib/sqlalchemy/orm/util.py')
| -rw-r--r-- | lib/sqlalchemy/orm/util.py | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/lib/sqlalchemy/orm/util.py b/lib/sqlalchemy/orm/util.py index e84517670..75f711007 100644 --- a/lib/sqlalchemy/orm/util.py +++ b/lib/sqlalchemy/orm/util.py @@ -45,6 +45,7 @@ from ..sql import util as sql_util from ..sql import visitors from ..sql.annotation import SupportsCloneAnnotations from ..sql.base import ColumnCollection +from ..util.langhelpers import MemoizedSlots all_cascades = frozenset( @@ -609,8 +610,9 @@ class AliasedClass: class AliasedInsp( ORMEntityColumnsClauseRole, ORMFromClauseRole, - sql_base.MemoizedHasCacheKey, + sql_base.HasCacheKey, InspectionAttr, + MemoizedSlots, ): """Provide an inspection interface for an :class:`.AliasedClass` object. @@ -650,6 +652,30 @@ class AliasedInsp( """ + __slots__ = ( + "__weakref__", + "_weak_entity", + "mapper", + "selectable", + "name", + "_adapt_on_names", + "with_polymorphic_mappers", + "polymorphic_on", + "_use_mapper_path", + "_base_alias", + "represents_outer_join", + "persist_selectable", + "local_table", + "_is_with_polymorphic", + "_with_polymorphic_entities", + "_adapter", + "_target", + "__clause_element__", + "_memoized_values", + "_all_column_expressions", + "_nest_adapters", + ) + def __init__( self, entity, @@ -738,8 +764,7 @@ class AliasedInsp( is_aliased_class = True "always returns True" - @util.memoized_instancemethod - def __clause_element__(self): + def _memoized_method___clause_element__(self): return self.selectable._annotate( { "parentmapper": self.mapper, @@ -863,8 +888,7 @@ class AliasedInsp( else: assert False, "mapper %s doesn't correspond to %s" % (mapper, self) - @util.memoized_property - def _get_clause(self): + def _memoized_attr__get_clause(self): onclause, replacemap = self.mapper._get_clause return ( self._adapter.traverse(onclause), @@ -874,12 +898,10 @@ class AliasedInsp( }, ) - @util.memoized_property - def _memoized_values(self): + def _memoized_attr__memoized_values(self): return {} - @util.memoized_property - def _all_column_expressions(self): + def _memoized_attr__all_column_expressions(self): if self._is_with_polymorphic: cols_plus_keys = self.mapper._columns_plus_keys( [ent.mapper for ent in self._with_polymorphic_entities] @@ -965,6 +987,15 @@ class LoaderCriteriaOption(CriteriaOption): """ + __slots__ = ( + "root_entity", + "entity", + "deferred_where_criteria", + "where_criteria", + "include_aliases", + "propagate_to_loaders", + ) + _traverse_internals = [ ("root_entity", visitors.ExtendedInternalTraversal.dp_plain_obj), ("entity", visitors.ExtendedInternalTraversal.dp_has_cache_key), |