superset 2017-03-16_18-10_db527d8c4c78_add_db_verbose_name 源码
superset 2017-03-16_18-10_db527d8c4c78_add_db_verbose_name 代码
文件路径：/superset/migrations/versions/2017-03-16_18-10_db527d8c4c78_add_db_verbose_name.py
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
"""Add verbose name to DruidCluster and Database
Revision ID: db527d8c4c78
Revises: b318dfe5fb6c
Create Date: 2017-03-16 18:10:57.193035
"""
# revision identifiers, used by Alembic.
revision = "db527d8c4c78"
down_revision = "b318dfe5fb6c"
import logging
import sqlalchemy as sa
from alembic import op
def upgrade():
op.add_column(
"clusters", sa.Column("verbose_name", sa.String(length=250), nullable=True)
)
op.add_column(
"dbs", sa.Column("verbose_name", sa.String(length=250), nullable=True)
)
try:
op.create_unique_constraint(None, "dbs", ["verbose_name"])
op.create_unique_constraint(None, "clusters", ["verbose_name"])
except Exception:
logging.info("Constraint not created, expected when using sqlite")
def downgrade():
try:
op.drop_column("dbs", "verbose_name")
op.drop_column("clusters", "verbose_name")
except Exception as ex:
logging.exception(ex)
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