tacker/tacker/db/migration/alembic_migrations/versions/975e28392888_add_unique_key...

63 lines
2.1 KiB
Python

# Copyright (C) 2020 NTT DATA
# 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.
#
"""Add unique constraints on vnfd_id,deleted in vnf_package_vnfd
Revision ID: 975e28392888
Revises: abbef484b34c
Create Date: 2019-12-10 02:40:12.966027
"""
# revision identifiers, used by Alembic.
revision = '975e28392888'
down_revision = 'abbef484b34c'
from alembic import op
import sqlalchemy as sa
def _migrate_duplicate_vnf_package_vnfd_id(table):
meta = sa.MetaData(bind=op.get_bind())
t = sa.Table(table, meta, autoload=True)
session = sa.orm.Session(bind=op.get_bind())
with session.begin(subtransactions=True):
dup_vnfd_ids = session.query(t.c.vnfd_id).group_by(
t.c.vnfd_id).having(sa.func.count() > 1).all()
if dup_vnfd_ids:
for vnfd_id in dup_vnfd_ids:
duplicate_obj_query = session.query(t).filter(
t.c.vnfd_id == vnfd_id[0]).all()
for dup_obj in duplicate_obj_query:
if dup_obj.deleted == '1':
session.execute(t.update().where(
t.c.id == dup_obj.id).values(deleted=dup_obj.id))
session.commit()
op.create_unique_constraint(
constraint_name='uniq_%s0vnfd_id0deleted' % table,
table_name=table,
columns=['vnfd_id', 'deleted'])
def upgrade(active_plugins=None, options=None):
op.alter_column('vnf_package_vnfd',
'deleted',
type_=sa.String(36), default="0")
_migrate_duplicate_vnf_package_vnfd_id('vnf_package_vnfd')