forms.py 文件源码

def clean(self):
        super().clean()
        user = User(first_name=self.cleaned_data.get('first_name'), last_name=self.cleaned_data.get('last_name'))
        username = slugify(user.get_full_name())
        if User.objects.filter(username=username).exists():
            raise forms.ValidationError(_('An user with that firstname and that lastname already exists.'))