neutron/neutron/db/migration/alembic_migrations/versions/41662e32bce2_l3_dvr_snat_ma...

50 lines
1.5 KiB
Python

# Copyright 2014 OpenStack Foundation
#
# 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.
#
"""L3 DVR SNAT mapping
Revision ID: 41662e32bce2
Revises: 4dbe243cd84d
Create Date: 2014-12-22 16:48:56.922833
"""
# revision identifiers, used by Alembic.
revision = '41662e32bce2'
down_revision = '4dbe243cd84d'
from alembic import op
from sqlalchemy.engine import reflection
from neutron.db import migration
TABLE_NAME = 'csnat_l3_agent_bindings'
def upgrade():
inspector = reflection.Inspector.from_engine(op.get_bind())
prev_pk_const = inspector.get_pk_constraint(TABLE_NAME)
prev_pk_name = prev_pk_const.get('name')
with migration.remove_fks_from_table(TABLE_NAME):
op.drop_constraint(name=prev_pk_name,
table_name=TABLE_NAME,
type_='primary')
op.create_primary_key(name=None,
table_name=TABLE_NAME,
cols=['router_id', 'l3_agent_id'])