Add ModelWithFieldAttributes *before* PolyModel, so that everything does not
become a "ModelWithFieldAttributes" in the Datastore.
The way PolyModel works, each Model class hierarchy is stored in the Datastore
as the class that directly inherited from PolyModel. So, we do not want to
insert ModelWithFieldAttributes *after* PolyModel by inheriting *from*
PolyModel, or everything would just be a ModelWithFieldAttributes in the
Datastore, instead of Person, Work, Group, etc.
#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""
Generic exceptions.
"""
class TimeoutException(Exception):
def __init__(self, msg=""):
Exception.__init__(self, msg)
class NestedException(Exception):
def __init__(self, exc_info):
Exception.__init__(self, exc_info[1])
self.exc_info_ = exc_info
def exc_info(self):
return self.exc_info_
class AbstractMethod(Exception):
"""Raise this exception to indicate that a method is abstract. Example:
class Foo:
def Bar(self):
raise gexcept.AbstractMethod"""
def __init__(self):
Exception.__init__(self)