3ffe006743
This switches to the use of subqueries for 1-m relationships which will result in a higher constant query factor but will eliminate the potential for cross-product explosions. Closes-Bug: #1649317 Change-Id: I6952c48236153a8e2f2f155375b70573ddc2cf0f
47 lines
1.9 KiB
Python
47 lines
1.9 KiB
Python
# 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_lib.db import constants as db_const
|
|
from neutron_lib.db import model_base
|
|
import sqlalchemy as sa
|
|
from sqlalchemy import orm
|
|
from sqlalchemy import sql
|
|
|
|
from neutron.db.models import l3 as l3_models
|
|
|
|
|
|
class MeteringLabelRule(model_base.BASEV2, model_base.HasId):
|
|
direction = sa.Column(sa.Enum('ingress', 'egress',
|
|
name='meteringlabels_direction'))
|
|
remote_ip_prefix = sa.Column(sa.String(64))
|
|
metering_label_id = sa.Column(sa.String(36),
|
|
sa.ForeignKey("meteringlabels.id",
|
|
ondelete="CASCADE"),
|
|
nullable=False)
|
|
excluded = sa.Column(sa.Boolean, default=False, server_default=sql.false())
|
|
|
|
|
|
class MeteringLabel(model_base.BASEV2,
|
|
model_base.HasId,
|
|
model_base.HasProject):
|
|
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
|
|
description = sa.Column(sa.String(db_const.LONG_DESCRIPTION_FIELD_SIZE))
|
|
rules = orm.relationship(MeteringLabelRule, backref="label",
|
|
cascade="delete", lazy="subquery")
|
|
routers = orm.relationship(
|
|
l3_models.Router,
|
|
primaryjoin="MeteringLabel.tenant_id==Router.tenant_id",
|
|
foreign_keys='MeteringLabel.tenant_id',
|
|
lazy='subquery',
|
|
uselist=True)
|
|
shared = sa.Column(sa.Boolean, default=False, server_default=sql.false())
|