98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
# Copyright 2018 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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"""Update tenant_id type from uuid to text
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Revision ID: 644faa4491fd
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Revises: 4da82e1c11c8
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Create Date: 2018-10-29 17:25:37.901136
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"""
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# revision identifiers, used by Alembic.
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revision = '644faa4491fd'
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down_revision = '4da82e1c11c8'
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from alembic import op
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import sqlalchemy as sa
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CONSTRAINT_MAP = {
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'hashmap_mappings': {
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u'uniq_field_mapping': (
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['value', 'field_id', 'tenant_id'],
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['value', 'field_id']),
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u'uniq_service_mapping': (
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['value', 'service_id', 'tenant_id'],
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['value', 'service_id'])},
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'hashmap_thresholds': {
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u'uniq_field_threshold': (
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['level', 'field_id', 'tenant_id'],
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['level', 'field_id']),
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u'uniq_service_threshold': (
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['level', 'service_id', 'tenant_id'],
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['level', 'service_id'])}}
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def get_reflect(table):
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reflect_args = [
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sa.Column(
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'service_id',
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sa.Integer,
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sa.ForeignKey(
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'hashmap_services.id',
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ondelete='CASCADE',
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name='fk_{}_service_id_hashmap_services'.format(table)),
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nullable=True),
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sa.Column(
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'field_id',
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sa.Integer,
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sa.ForeignKey(
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'hashmap_fields.id',
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ondelete='CASCADE',
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name='fk_{}_field_id_hashmap_fields'.format(table)),
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nullable=True),
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sa.Column(
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'group_id',
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sa.Integer,
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sa.ForeignKey(
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'hashmap_groups.id',
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ondelete='SET NULL',
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name='fk_{}_group_id_hashmap_groups'.format(table)),
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nullable=True),
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sa.Column(
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'map_type',
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sa.Enum(
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'flat',
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'rate',
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name='enum_{}map_type'.format(
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'hash' if table == 'hashmap_thresholds' else '')),
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nullable=False)]
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return reflect_args
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def upgrade():
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for table in ('hashmap_mappings', 'hashmap_thresholds'):
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with op.batch_alter_table(
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table,
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reflect_args=get_reflect(table)
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) as batch_op:
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batch_op.alter_column('tenant_id',
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type_=sa.String(length=255),
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existing_nullable=True)
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for name, columns in CONSTRAINT_MAP[table].items():
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batch_op.drop_constraint(name, type_='unique')
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batch_op.create_unique_constraint(name, columns[0])
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