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# 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.
from sqlalchemy import Column
from sqlalchemy import Integer
from sqlalchemy import MetaData
from sqlalchemy import Table
def upgrade(migrate_engine):
meta = MetaData(bind=migrate_engine)
meter = Table('meter', meta, autoload=True)
duration = Column('counter_duration', Integer)
meter.drop_column(duration)
def downgrade(migrate_engine):
meta = MetaData(bind=migrate_engine)
meter = Table('meter', meta, autoload=True)
duration = Column('counter_duration', Integer)
meter.create_column(duration)
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