如何在中创建电子邮件字段表格.py必填字段？

Question

我试了好几种方法，但似乎都不管用。你知道吗

这是我的密码：

 class Meta:
        model = User
        # set fields to be used in registration form
        fields = ['username','email','password','password2']

    username = forms.CharField(required=True)
    email = forms.EmailField(required=True, max_length=100) <---
    password= forms.PasswordInput()
    password2=forms.PasswordInput()


# user email must be unique
def clean_email(self):
    email = self.cleaned_data.get('email')
    # check if account with email exists
    if email and User.objects.filter(email=email).exists():
        raise forms.ValidationError('Email address already exists')
    return email

有人知道为什么required=True不能作为必填字段吗？你知道吗

Answer 1

@WillemVanOnsem在对您的问题的评论中所说的，我将在这里进行扩展以使其更清楚：您应该调用super().clean_email()，以确保该字段的所有默认验证都已运行。你知道吗

def clean_email(self):
    email = super().clean_email()

    if email is not None:
        # check if account with email exists
        if User.objects.filter(email=email).exists():
            raise ValidationError('Email address already exists.')

    return email