38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
# 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 datetime
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import sqlalchemy as sql
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import sqlalchemy.sql.expression as expression
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def upgrade(migrate_engine):
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meta = sql.MetaData()
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meta.bind = migrate_engine
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password = sql.Table('password', meta, autoload=True)
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# reset created_at column
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password.c.created_at.drop()
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created_at = sql.Column('created_at', sql.DateTime(),
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nullable=True,
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default=datetime.datetime.utcnow)
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password.create_column(created_at)
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# update created_at value
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now = datetime.datetime.utcnow()
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values = {'created_at': now}
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stmt = password.update().where(
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password.c.created_at == expression.null()).values(values)
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stmt.execute()
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# set not nullable
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password.c.created_at.alter(nullable=False)
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