64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
# Copyright (c) 2012 OpenStack, LLC.
|
|
#
|
|
# 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.
|
|
|
|
from sqlalchemy.ext import declarative
|
|
from sqlalchemy import orm
|
|
|
|
|
|
class QuantumBase(object):
|
|
"""Base class for Quantum Models."""
|
|
|
|
def __setitem__(self, key, value):
|
|
setattr(self, key, value)
|
|
|
|
def __getitem__(self, key):
|
|
return getattr(self, key)
|
|
|
|
def get(self, key, default=None):
|
|
return getattr(self, key, default)
|
|
|
|
def __iter__(self):
|
|
self._i = iter(orm.object_mapper(self).columns)
|
|
return self
|
|
|
|
def next(self):
|
|
n = self._i.next().name
|
|
return n, getattr(self, n)
|
|
|
|
def update(self, values):
|
|
"""Make the model object behave like a dict"""
|
|
for k, v in values.iteritems():
|
|
setattr(self, k, v)
|
|
|
|
def iteritems(self):
|
|
"""Make the model object behave like a dict.
|
|
Includes attributes from joins."""
|
|
local = dict(self)
|
|
joined = dict([(k, v) for k, v in self.__dict__.iteritems()
|
|
if not k[0] == '_'])
|
|
local.update(joined)
|
|
return local.iteritems()
|
|
|
|
|
|
class QuantumBaseV2(QuantumBase):
|
|
|
|
@declarative.declared_attr
|
|
def __tablename__(cls):
|
|
# NOTE(jkoelker) use the pluralized name of the class as the table
|
|
return cls.__name__.lower() + 's'
|
|
|
|
|
|
BASEV2 = declarative.declarative_base(cls=QuantumBaseV2)
|