| # 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. |
| from typing import Any |
| |
| from flask import Markup |
| from flask_appbuilder.fieldwidgets import BS3TextFieldWidget |
| |
| from superset.connectors.base.models import BaseDatasource |
| from superset.exceptions import SupersetException |
| from superset.views.base import SupersetModelView |
| |
| |
| class BS3TextFieldROWidget( # pylint: disable=too-few-public-methods |
| BS3TextFieldWidget |
| ): |
| """ |
| Custom read only text field widget. |
| """ |
| |
| def __call__(self, field: Any, **kwargs: Any) -> Markup: |
| kwargs["readonly"] = "true" |
| return super().__call__(field, **kwargs) |
| |
| |
| class DatasourceModelView(SupersetModelView): |
| def pre_delete(self, item: BaseDatasource) -> None: |
| if item.slices: |
| raise SupersetException( |
| Markup( |
| "Cannot delete a datasource that has slices attached to it." |
| "Here's the list of associated charts: " |
| + "".join([i.slice_name for i in item.slices]) |
| ) |
| ) |