如何从子类的父窗体中删除字段？ [英] How to remove a field from the parent Form in a subclass?

问题描述

class LoginForm(forms.Form):
    nickname = forms.CharField(max_length=100)
    username = forms.CharField(max_length=100)
    password = forms.CharField(widget=forms.PasswordInput)


class LoginFormWithoutNickname(LoginForm):
    # i don't want the field nickname here
    nickname = None #??

有没有办法实现这一目标？

注意：我没有 ModelForm ，所以 Meta 类具有排除不起作用。

Note: i don't have a ModelForm, so the Meta class with exclude doesn't work.

推荐答案

您可以更改通过重写 init 方法创建子类：

You can alter the fields in a subclass by overriding the init method:

class LoginFormWithoutNickname(LoginForm):
    def __init__(self, *args, **kwargs):
        super(LoginFormWithoutNickname, self).__init__(*args, **kwargs)
        self.fields.pop('nickname')

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