| # 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 typing import Optional |
| |
| from flask_appbuilder.models.sqla import Model |
| from flask_appbuilder.security.sqla.models import User |
| from flask_babel import lazy_gettext as _ |
| |
| from superset.commands.base import BaseCommand |
| from superset.dao.exceptions import DAODeleteFailedError |
| from superset.databases.commands.exceptions import ( |
| DatabaseDeleteDatasetsExistFailedError, |
| DatabaseDeleteFailedError, |
| DatabaseDeleteFailedReportsExistError, |
| DatabaseNotFoundError, |
| ) |
| from superset.databases.dao import DatabaseDAO |
| from superset.models.core import Database |
| from superset.reports.dao import ReportScheduleDAO |
| |
| logger = logging.getLogger(__name__) |
| |
| |
| class DeleteDatabaseCommand(BaseCommand): |
| def __init__(self, user: User, model_id: int): |
| self._actor = user |
| self._model_id = model_id |
| self._model: Optional[Database] = None |
| |
| def run(self) -> Model: |
| self.validate() |
| try: |
| database = DatabaseDAO.delete(self._model) |
| except DAODeleteFailedError as ex: |
| logger.exception(ex.exception) |
| raise DatabaseDeleteFailedError() |
| return database |
| |
| def validate(self) -> None: |
| # Validate/populate model exists |
| self._model = DatabaseDAO.find_by_id(self._model_id) |
| if not self._model: |
| raise DatabaseNotFoundError() |
| # Check there are no associated ReportSchedules |
| reports = ReportScheduleDAO.find_by_database_id(self._model_id) |
| |
| if reports: |
| report_names = [report.name for report in reports] |
| raise DatabaseDeleteFailedReportsExistError( |
| _("There are associated alerts or reports: %s" % ",".join(report_names)) |
| ) |
| # Check if there are datasets for this database |
| if self._model.tables: |
| raise DatabaseDeleteDatasetsExistFailedError() |