46 lines
1.7 KiB
Python
46 lines
1.7 KiB
Python
# Copyright (c) 2019 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron_lib.db import model_base
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import sqlalchemy as sa
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from sqlalchemy import orm
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from neutron.db.models import l3
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from neutron_lib.db import constants as db_const
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class ConntrackHelper(model_base.BASEV2, model_base.HasId):
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__tablename__ = 'conntrack_helpers'
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router_id = sa.Column(sa.String(db_const.UUID_FIELD_SIZE),
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sa.ForeignKey('routers.id', ondelete="CASCADE"),
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nullable=False)
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protocol = sa.Column(sa.String(40), nullable=False)
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port = sa.Column(sa.Integer, nullable=False)
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helper = sa.Column(sa.String(64), nullable=False)
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__table_args__ = (
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sa.UniqueConstraint(
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router_id, protocol, port, helper,
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name='uniq_conntrack_helpers0router_id0protocol0port0helper'),
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)
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router = orm.relationship(l3.Router, load_on_pending=True,
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backref=orm.backref("conntrack_helpers",
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lazy='subquery',
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uselist=True,
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cascade='delete'))
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revises_on_change = ('router', )
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