superset views 源码
superset views 代码
文件路径：/superset/connectors/base/views.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.
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])
)
)
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