/usr/lib/python3/dist-packages/gnocchi/indexer/alembic/versions/1e1a63d3d186_original_resource_id_not_null.py is in python3-gnocchi 4.2.0-0ubuntu5.
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#
# 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.
#
"""Make sure resource.original_resource_id is NOT NULL
Revision ID: 1e1a63d3d186
Revises: 397987e38570
Create Date: 2017-01-26 19:33:35.209688
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy import func
import sqlalchemy_utils
# revision identifiers, used by Alembic.
revision = '1e1a63d3d186'
down_revision = '397987e38570'
branch_labels = None
depends_on = None
def clean_substr(col, start, length):
return func.lower(func.substr(func.hex(col), start, length))
def upgrade():
bind = op.get_bind()
for table_name in ('resource', 'resource_history'):
table = sa.Table(table_name, sa.MetaData(),
sa.Column('id',
sqlalchemy_utils.types.uuid.UUIDType(),
nullable=False),
sa.Column('original_resource_id', sa.String(255)))
# NOTE(gordc): mysql stores id as binary so we need to rebuild back to
# string uuid.
if bind and bind.engine.name == "mysql":
vals = {'original_resource_id':
clean_substr(table.c.id, 1, 8) + '-' +
clean_substr(table.c.id, 9, 4) + '-' +
clean_substr(table.c.id, 13, 4) + '-' +
clean_substr(table.c.id, 17, 4) + '-' +
clean_substr(table.c.id, 21, 12)}
else:
vals = {'original_resource_id': table.c.id}
op.execute(table.update().where(
table.c.original_resource_id.is_(None)).values(vals))
op.alter_column(table_name, "original_resource_id", nullable=False,
existing_type=sa.String(255),
existing_nullable=True)
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