# Copyright 2013 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.
#

"""remove_dhcp_lease

Revision ID: f9263d6df56
Revises: c88b6b5fea3
Create Date: 2013-07-17 12:31:33.731197

"""

# revision identifiers, used by Alembic.
revision = 'f9263d6df56'
down_revision = 'c88b6b5fea3'

# Change to ['*'] if this migration applies to all plugins

migration_for_plugins = [
    '*'
]

from alembic import op
import sqlalchemy as sa


def upgrade(active_plugins=None, options=None):
    op.drop_column('ipallocations', u'expiration')


def downgrade(active_plugins=None, options=None):
    op.add_column('ipallocations', sa.Column(u'expiration', sa.DateTime(),
                  nullable=True))