diff options
Diffstat (limited to 'lib/sqlalchemy/orm/unitofwork.py')
| -rw-r--r-- | lib/sqlalchemy/orm/unitofwork.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/sqlalchemy/orm/unitofwork.py b/lib/sqlalchemy/orm/unitofwork.py index 71e61827b..05265b13f 100644 --- a/lib/sqlalchemy/orm/unitofwork.py +++ b/lib/sqlalchemy/orm/unitofwork.py @@ -16,6 +16,7 @@ organizes them in order of dependency, and executes. from .. import util, event from ..util import topological from . import attributes, persistence, util as orm_util +import itertools def track_cascade_events(descriptor, prop): @@ -379,14 +380,19 @@ class UOWTransaction(object): execute() method has succeeded and the transaction has been committed. """ + if not self.states: + return + states = set(self.states) isdel = set( s for (s, (isdelete, listonly)) in self.states.items() if isdelete ) other = states.difference(isdel) - self.session._remove_newly_deleted(isdel) - self.session._register_newly_persistent(other) + if isdel: + self.session._remove_newly_deleted(isdel) + if other: + self.session._register_newly_persistent(other) class IterateMappersMixin(object): |