manila/manila/db/migrations/alembic/versions/533646c7af38_remove_unused_...

69 lines
2.1 KiB
Python

# Copyright 2015 Mirantis, Inc.
#
# 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.
"""Remove unused attr status
Revision ID: 533646c7af38
Revises: 3a482171410f
Create Date: 2015-05-28 13:13:47.651353
"""
# revision identifiers, used by Alembic.
revision = '533646c7af38'
down_revision = '3a482171410f'
from alembic import op
from oslo_log import log
import sqlalchemy as sql
from manila.common import constants
from manila.i18n import _LE
LOG = log.getLogger(__name__)
COLUMN_NAME = 'status'
TABLE_NAMES = ('network_allocations', 'security_services')
def upgrade():
for t_name in TABLE_NAMES:
try:
op.drop_column(t_name, COLUMN_NAME)
except Exception:
LOG.error(_LE("Column '%s' could not be dropped"), COLUMN_NAME)
raise
def downgrade():
for t_name in TABLE_NAMES:
try:
op.add_column(
t_name,
sql.Column(
COLUMN_NAME,
# NOTE(vponomaryov): original type of attr was enum. But
# alembic is buggy with enums [1], so use string type
# instead. Anyway we have no reason to keep enum/constraint
# on specific set of possible statuses because they have
# not been used.
# [1] - https://bitbucket.org/zzzeek/alembic/
# issue/89/opadd_column-and-opdrop_column-should
sql.String(255),
default=constants.STATUS_NEW,
),
)
except Exception:
LOG.error(_LE("Column '%s' could not be added"), COLUMN_NAME)
raise