使用flask_wtf验证程序控制输入字段不起作用

Question

This is the code in forms.py

url = FileField(
        label="File",
        validators=[
            DataRequired("Please upload your file")
        ],
        description="File"
)

In HTML:

{{ form.url }}

When I try to remove the required attribute in views.py by emptying validators like this: form.url.validators = []

It's not working, there's still a required in the input filed, how to fix this

Answer 1

In the list of validators there is the Optional() validator which allows you to make an HTML field optional . Here's how to use it:

url = FileField(label="File", validators=[Optional()], description="File")