neutron/neutron/db/l3_attrs_db.py

60 lines
2.3 KiB
Python

# Copyright (c) 2014 OpenStack Foundation. All rights reserved.
#
# 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 neutron.common import _deprecate
from neutron.db import db_base_plugin_v2
from neutron.db.models import l3_attrs
from neutron.extensions import l3
_deprecate._moved_global('RouterExtraAttributes', new_module=l3_attrs)
class ExtraAttributesMixin(object):
"""Mixin class to enable router's extra attributes."""
extra_attributes = []
def _extend_extra_router_dict(self, router_res, router_db):
extra_attrs = router_db['extra_attributes'] or {}
for attr in self.extra_attributes:
name = attr['name']
default = attr['default']
router_res[name] = (
extra_attrs[name] if name in extra_attrs else default)
def _get_extra_attributes(self, router, extra_attributes):
return (dict((attr['name'],
router.get(attr['name'], attr['default']))
for attr in extra_attributes))
def _process_extra_attr_router_create(
self, context, router_db, router_req):
kwargs = self._get_extra_attributes(router_req, self.extra_attributes)
# extra_attributes reference is populated via backref
if not router_db['extra_attributes']:
attributes_db = l3_attrs.RouterExtraAttributes(
router_id=router_db['id'], **kwargs)
context.session.add(attributes_db)
router_db['extra_attributes'] = attributes_db
else:
# The record will exist if RouterExtraAttributes model's
# attributes are added with db migrations over time
router_db['extra_attributes'].update(kwargs)
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
l3.ROUTERS, ['_extend_extra_router_dict'])
_deprecate._MovedGlobals()