diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sqlalchemy/orm/mapper.py | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py index a4587ec50..2d7e7b3cf 100644 --- a/lib/sqlalchemy/orm/mapper.py +++ b/lib/sqlalchemy/orm/mapper.py @@ -824,7 +824,7 @@ class Mapper(_InspectionAttr): being present.""" # a set of all mappers which inherit from this one. - self._inheriting_mappers = util.WeakSet() + self._inheriting_mappers = util.WeakSequence() if self.inherits: if isinstance(self.inherits, type): @@ -898,7 +898,7 @@ class Mapper(_InspectionAttr): self.polymorphic_map = self.inherits.polymorphic_map self.batch = self.inherits.batch - self.inherits._inheriting_mappers.add(self) + self.inherits._inheriting_mappers.append(self) self.base_mapper = self.inherits.base_mapper self.passive_updates = self.inherits.passive_updates self._all_tables = self.inherits._all_tables @@ -965,7 +965,7 @@ class Mapper(_InspectionAttr): self.batch = self.inherits.batch for mp in self.self_and_descendants: mp.base_mapper = self.inherits.base_mapper - self.inherits._inheriting_mappers.add(self) + self.inherits._inheriting_mappers.append(self) self.passive_updates = self.inherits.passive_updates self._all_tables = self.inherits._all_tables for key, prop in mapper._props.items(): @@ -2131,8 +2131,7 @@ class Mapper(_InspectionAttr): while stack: item = stack.popleft() descendants.append(item) - stack.extend(sorted(item._inheriting_mappers, - key=lambda m: m.class_.__name__)) + stack.extend(item._inheriting_mappers) return util.WeakSequence(descendants) def polymorphic_iterator(self): |