48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
# Copyright 2017 OpenStack Foundation
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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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#
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"""add unique constraint on deleted_at
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Revision ID: e7993093baf1
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Revises: c256228ed37c
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Create Date: 2017-04-19 10:57:22.157326
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"""
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# revision identifiers, used by Alembic.
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revision = 'e7993093baf1'
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down_revision = 'c256228ed37c'
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from alembic import op
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def _drop_unique_constraint(table):
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op.drop_constraint(
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constraint_name='uniq_%s0tenant_id0name' % table,
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table_name=table, type_='unique')
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def _add_unique_constraint(table):
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op.create_unique_constraint(
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constraint_name='uniq_%s0tenant_id0name0deleted_at' % table,
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table_name=table,
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columns=['tenant_id', 'name', 'deleted_at'])
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def upgrade(active_plugins=None, options=None):
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for table in ['vnf', 'vnfd', 'vims', 'ns', 'nsd']:
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_drop_unique_constraint(table)
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_add_unique_constraint(table)
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