69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
# Copyright 2015 OpenStack Foundation
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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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#
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from alembic import op
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import sqlalchemy as sa
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from neutron.db import migration
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"""standard_desc
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Revision ID: 4ffceebfcdc
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Revises: 5ffceebfada
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Create Date: 2016-02-10 23:12:04.012457
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"""
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# revision identifiers, used by Alembic.
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revision = '4ffceebfcdc'
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down_revision = '5ffceebfada'
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depends_on = ('0e66c5227a8a',)
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neutron_milestone = [migration.MITAKA]
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# A simple model of the security groups table with only the fields needed for
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# the migration.
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securitygroups = sa.Table('securitygroups', sa.MetaData(),
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sa.Column('standard_attr_id', sa.BigInteger(),
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nullable=False),
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sa.Column('description', sa.String(length=255)))
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standardattr = sa.Table(
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'standardattributes', sa.MetaData(),
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sa.Column('id', sa.BigInteger(), primary_key=True, autoincrement=True),
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sa.Column('description', sa.String(length=255)))
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def upgrade():
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migrate_values()
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op.drop_column('securitygroups', 'description')
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def migrate_values():
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session = sa.orm.Session(bind=op.get_bind())
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values = []
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for row in session.query(securitygroups):
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values.append({'id': row[0],
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'description': row[1]})
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with session.begin(subtransactions=True):
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for value in values:
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session.execute(
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standardattr.update().values(
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description=value['description']).where(
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standardattr.c.id == value['id']))
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# this commit appears to be necessary to allow further operations
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session.commit()
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