61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 MORITA Kazutaka.
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# All Rights Reserved.
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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, Table, MetaData
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from sqlalchemy import Integer, BigInteger, DateTime, Boolean, String
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from nova import log as logging
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meta = MetaData()
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LOG = logging.getLogger(__name__)
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bw_cache = Table('bw_usage_cache', meta,
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Column('created_at', DateTime(timezone=False)),
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Column('updated_at', DateTime(timezone=False)),
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Column('deleted_at', DateTime(timezone=False)),
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Column('deleted', Boolean(create_constraint=True, name=None)),
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Column('id', Integer(), primary_key=True, nullable=False),
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Column('instance_id', Integer(), nullable=False),
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Column('network_label',
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String(length=255, convert_unicode=False, assert_unicode=None,
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unicode_error=None, _warn_on_bytestring=False)),
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Column('start_period', DateTime(timezone=False), nullable=False),
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Column('last_refreshed', DateTime(timezone=False)),
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Column('bw_in', BigInteger()),
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Column('bw_out', BigInteger()))
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def upgrade(migrate_engine):
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# Upgrade operations go here. Don't create your own engine;
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# bind migrate_engine to your metadata
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meta.bind = migrate_engine
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try:
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bw_cache.create()
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except Exception:
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LOG.info(repr(bw_cache))
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LOG.exception('Exception while creating table')
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meta.drop_all(tables=[bw_cache])
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raise
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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# Operations to reverse the above upgrade go here.
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bw_cache.drop()
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