superset 2021-09-19_14-42_b92d69a6643c_rename_csv_to_file 源码
superset 2021-09-19_14-42_b92d69a6643c_rename_csv_to_file 代码
文件路径：/superset/migrations/versions/2021-09-19_14-42_b92d69a6643c_rename_csv_to_file.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.
"""rename_csv_to_file
Revision ID: b92d69a6643c
Revises: aea15018d53b
Create Date: 2021-09-19 14:42:20.130368
"""
# revision identifiers, used by Alembic.
revision = "b92d69a6643c"
down_revision = "aea15018d53b"
import sqlalchemy as sa
from alembic import op
from sqlalchemy.engine.reflection import Inspector
def upgrade():
try:
with op.batch_alter_table("dbs") as batch_op:
batch_op.alter_column(
"allow_csv_upload",
new_column_name="allow_file_upload",
existing_type=sa.Boolean(),
)
except (sa.exc.OperationalError, sa.exc.DatabaseError):
# In MySQL 8.0 renaming the column rename fails because it has
# a constraint check; we can safely remove it in that case, see
# https://github.com/sqlalchemy/alembic/issues/699
bind = op.get_bind()
inspector = Inspector.from_engine(bind)
check_constraints = inspector.get_check_constraints("dbs")
for check_constraint in check_constraints:
if "allow_csv_upload" in check_constraint["sqltext"]:
name = check_constraint["name"]
op.drop_constraint(name, table_name="dbs", type_="check")
# try again
with op.batch_alter_table("dbs") as batch_op:
batch_op.alter_column(
"allow_csv_upload",
new_column_name="allow_file_upload",
existing_type=sa.Boolean(),
)
def downgrade():
with op.batch_alter_table("dbs") as batch_op:
batch_op.alter_column(
"allow_file_upload",
new_column_name="allow_csv_upload",
existing_type=sa.Boolean(),
)
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