56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
#
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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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import sqlalchemy
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from heat.db.sqlalchemy import utils as migrate_utils
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def upgrade(migrate_engine):
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meta = sqlalchemy.MetaData(bind=migrate_engine)
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stack = sqlalchemy.Table('stack', meta, autoload=True)
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convergence = sqlalchemy.Column('convergence', sqlalchemy.Boolean,
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default=False)
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convergence.create(stack)
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def downgrade(migrate_engine):
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meta = sqlalchemy.MetaData(bind=migrate_engine)
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stack = sqlalchemy.Table('stack', meta, autoload=True)
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if migrate_engine.name == 'sqlite':
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_downgrade_052_sqlite(migrate_engine, meta, stack)
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else:
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stack.c.convergence.drop()
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def _downgrade_052_sqlite(migrate_engine, metadata, table):
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table_name = table.name
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constraints = [
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c.copy() for c in table.constraints
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if not isinstance(c, sqlalchemy.CheckConstraint)
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]
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columns = [c.copy() for c in table.columns if c.name != "convergence"]
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new_table = sqlalchemy.Table(table_name + "__tmp__", metadata,
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*(columns + constraints))
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new_table.create()
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migrate_utils.migrate_data(migrate_engine,
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table,
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new_table,
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['convergence'])
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