39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# Copyright 2011 OpenStack LLC.
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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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from sqlalchemy import Column, Float, Integer, MetaData, Table
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meta = MetaData()
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zones = Table('zones', meta,
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Column('id', Integer(), primary_key=True, nullable=False),
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)
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weight_offset = Column('weight_offset', Float(), default=0.0)
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weight_scale = Column('weight_scale', Float(), default=1.0)
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def upgrade(migrate_engine):
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meta.bind = migrate_engine
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zones.create_column(weight_offset)
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zones.create_column(weight_scale)
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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zones.drop_column(weight_offset)
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zones.drop_column(weight_scale)
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