python - Django form.is_valid 总是返回 true

Question

我是 Django 和 python 的新手，正在尝试从书中学习它。在下面的代码中，我试图确保password1和password2相同，但它似乎没有运行clean_password2验证，因为即使它们具有不同的值，它也总是返回true。

import re
from django.contrib.auth.models import User
from django import forms

class RegistrationForm(forms.Form):
    username = forms.CharField(label=u'Username', max_length=30)
    email = forms.EmailField(label=u'Email')
    password1 = forms.CharField(
        label= u'Password',
        widget = forms.PasswordInput()
    )
    password2 = forms.CharField(
        label= u'Password (Again)',
        widget = forms.PasswordInput()
    )

    def clean_password2(self):
        password1 = self.cleaned_data.get('password1')
        password2 = self.cleaned_data.get('password2')

        if password1 != password2:
            raise forms.ValidationError('Passwords do not match.')
        return password2

Answer 1

如果您要清理两个相互依赖的字段，则应覆盖表单的 clean() 方法。您可以阅读更多here .