python - Django:无法验证 UserCreationForm

Question

下面是我的forms.py的内容

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

class RegistrationForm(UserCreationForm):

    email = forms.EmailField(required=True)
    first_name = forms.CharField(max_length=20, required=True)
    last_name = forms.CharField(max_length=20, required=True)

    class Meta:
        model = User
        fields = ('username', 'email', 'password1', 'password2', 'first_name', 'last_name')

        def save(self, commit=True):
            user = super(UserCreationForm, self).save(commit=False)
            user.email = self.cleaned_data['email']
            user.first_name = self.cleaned_data['first_name']
            user.last_name = self.cleaned_data['last_name']
#validation of email id----------
            email1 = user.email
            (fisrt, second,) = email1.split("@")
            (domain, exn,) = second.split(".")
            if not domain == "tmail":
                raise forms.ValidationError("Domain must be 'tmail'")

            if commit:
                user.save()
            return user

我能够打印表单(包括电子邮件、名字和姓氏字段)并成功注册用户，唯一的问题是，它没有执行验证步骤。 (“#validation of email id----------”下面的代码)即使域不是“tmail”，它也会接受它，而不会引发任何验证错误，然后将用户注册到数据库中。如果您需要更多信息，请帮助并告诉我。

Answer 1

现在验证 save() 中的电子邮件为时已晚。方法。 Django 允许您通过定义方法来验证各个字段clean_<fieldname> 。验证表单时将调用此函数。

def clean_email(self):
    email = self.cleaned_data['email']
    (first, second,) = email1.split("@")
    (domain, exn,) = second.split(".")
    if domain != "tmail":
        raise forms.ValidationError("Domain must be 'tmail'")
    return email 

请参阅 cleaning a specific field attribute 上的文档了解更多信息。