diff options
Diffstat (limited to 'lib/sqlalchemy/ext/activemapper.py')
| -rw-r--r-- | lib/sqlalchemy/ext/activemapper.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sqlalchemy/ext/activemapper.py b/lib/sqlalchemy/ext/activemapper.py index a0984f46c..6c6886c66 100644 --- a/lib/sqlalchemy/ext/activemapper.py +++ b/lib/sqlalchemy/ext/activemapper.py @@ -76,6 +76,8 @@ class relationship(object): uselist=self.uselist, order_by=self.order_by) def create_backref(self, klass): + if self.backref is None: + return None relclass = ActiveMapperMeta.classes[self.classname] if klass.__name__ == self.classname: br_fkey = getattr(relclass.c, self.colname) @@ -95,6 +97,8 @@ class one_to_one(relationship): relationship.__init__(self, classname, colname, backref, private, lazy, uselist=False, order_by=order_by) def create_backref(self, klass): + if self.backref is None: + return None relclass = ActiveMapperMeta.classes[self.classname] if klass.__name__ == self.classname: br_fkey = getattr(relclass.c, self.colname) |