/usr/lib/python2.7/dist-packages/gnocchi/indexer/alembic/versions/ed9c6ddc5c35_fix_host_foreign_key.py is in python-gnocchi 3.0.4-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | # Copyright 2016 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.
#
"""fix_host_foreign_key
Revision ID: ed9c6ddc5c35
Revises: ffc7bbeec0b0
Create Date: 2016-04-15 06:25:34.649934
"""
from alembic import op
from sqlalchemy import inspect
# revision identifiers, used by Alembic.
revision = 'ed9c6ddc5c35'
down_revision = 'ffc7bbeec0b0'
branch_labels = None
depends_on = None
def upgrade():
conn = op.get_bind()
insp = inspect(conn)
fk_names = [fk['name'] for fk in insp.get_foreign_keys('host')]
if ("fk_hypervisor_id_resource_id" not in fk_names and
"fk_host_id_resource_id" in fk_names):
# NOTE(sileht): we are already good, the BD have been created from
# scratch after "a54c57ada3f5"
return
op.drop_constraint("fk_hypervisor_id_resource_id", "host",
type_="foreignkey")
op.drop_constraint("fk_hypervisor_history_resource_history_revision",
"host_history", type_="foreignkey")
op.create_foreign_key("fk_host_id_resource_id", "host", "resource",
["id"], ["id"], ondelete="CASCADE")
op.create_foreign_key("fk_host_history_resource_history_revision",
"host_history", "resource_history",
["revision"], ["revision"], ondelete="CASCADE")
|