superset forms 源码
superset forms 代码
文件路径：/superset/forms.py
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# 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
#
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# KIND, either express or implied. See the License for the
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"""Contains the logic to create cohesive forms on the explore view"""
import json
from typing import Any, List, Optional
from flask_appbuilder.fieldwidgets import BS3TextFieldWidget
from wtforms import Field
class JsonListField(Field):
widget = BS3TextFieldWidget()
data: List[str] = []
def _value(self) -> str:
return json.dumps(self.data)
def process_formdata(self, valuelist: List[str]) -> None:
if valuelist and valuelist[0]:
self.data = json.loads(valuelist[0])
else:
self.data = []
class CommaSeparatedListField(Field):
widget = BS3TextFieldWidget()
data: List[str] = []
def _value(self) -> str:
if self.data:
return ", ".join(self.data)
return ""
def process_formdata(self, valuelist: List[str]) -> None:
if valuelist:
self.data = [x.strip() for x in valuelist[0].split(",")]
else:
self.data = []
def filter_not_empty_values(values: Optional[List[Any]]) -> Optional[List[Any]]:
"""Returns a list of non empty values or None"""
if not values:
return None
data = [value for value in values if value]
if not data:
return None
return data
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