superset delete_expired 源码
superset delete_expired 代码
文件路径：/superset/key_value/commands/delete_expired.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.
import logging
from datetime import datetime
from sqlalchemy import and_
from sqlalchemy.exc import SQLAlchemyError
from superset import db
from superset.commands.base import BaseCommand
from superset.key_value.exceptions import KeyValueDeleteFailedError
from superset.key_value.models import KeyValueEntry
from superset.key_value.types import KeyValueResource
logger = logging.getLogger(__name__)
class DeleteExpiredKeyValueCommand(BaseCommand):
resource: KeyValueResource
def __init__(self, resource: KeyValueResource):
"""
Delete all expired key-value pairs
:param resource: the resource (dashboard, chart etc)
:return: was the entry deleted or not
"""
self.resource = resource
def run(self) -> None:
try:
self.delete_expired()
except SQLAlchemyError as ex:
db.session.rollback()
raise KeyValueDeleteFailedError() from ex
def validate(self) -> None:
pass
def delete_expired(self) -> None:
(
db.session.query(KeyValueEntry)
.filter(
and_(
KeyValueEntry.resource == self.resource.value,
KeyValueEntry.expires_on <= datetime.now(),
)
)
.delete()
)
db.session.commit()
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