下面是一个示例,说明如何避免使用整个模型数据集填充 Flask appbuilder
# First, create a function that filters the data based on the search query
def filter_data(query):
# Your code here
# Next, use the active_filter option to apply the filter function to the appbuilder
appbuilder = FlaskAppBuilder(app, db.session, active_filter=filter_data)
# Finally, you can use the base_filter option to apply a default filter
# to the appbuilder, if you want to
appbuilder = FlaskAppBuilder(app, db.session, base_filter=my_default_filter)
至于覆盖搜索表单,您可以使用 WTForms 库创建一个自定义表单,其中包含列的允许值列表。
这是一个例子:
# Import the necessary classes from WTForms
from wtforms import Form, StringField
# Create a custom form class
class MyCustomSearchForm(Form):
# Create a StringField with a list of allowed values
search_query = StringField(choices=['allowed value 1', 'allowed value 2', ...])
# Use the custom form when creating the appbuilder
appbuilder = FlaskAppBuilder(app, db.session, search_form=MyCustomSearchForm)
我希望这有帮助!如果您有任何问题,请告诉我。祝你的 Flask 之旅好运。