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# Copyright 2020 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
from alembic import op
from neutron_lib import exceptions
import sqlalchemy as sa
from neutron._i18n import _
"""add_unique_quotas_project_resource
Revision ID: f010820fc498
Revises: 532aa95457e2
Create Date: 2020-08-28 14:49:50.615623
"""
# revision identifiers, used by Alembic.
revision = 'f010820fc498'
down_revision = '532aa95457e2'
depends_on = ('7d9d8eeec6ad',)
quotas = sa.Table(
'quotas', sa.MetaData(),
sa.Column('project_id', sa.String(255)),
sa.Column('resource', sa.String(255)))
class DuplicateQuotas(exceptions.Conflict):
message = _("Duplicate Quotas are created for resource(s) %(resources)s. "
"Database cannot be upgraded. Please, remove all duplicates "
"before upgrading the database.")
def get_duplicate_quotas(connection):
insp = sa.inspect(connection)
if 'quotas' not in insp.get_table_names():
return []
session = sa.orm.Session(bind=connection.connect())
items = (session.query(quotas.c.project_id, quotas.c.resource)
.group_by(quotas.c.project_id, quotas.c.resource)
.having(sa.func.count() > 1)).all()
return items
def check_sanity(connection):
res = get_duplicate_quotas(connection)
if res:
resources = ",".join([":".join(r) for r in res])
raise DuplicateQuotas(resources=resources)
def upgrade():
op.create_unique_constraint(
op.f('uniq_quotas0project_id0resource'),
'quotas',
['project_id', 'resource'])
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