覆盖 AbstractUser 模型的默认 django 用户名验证器

Question

我正在使用 AbstractUser 模型来创建自定义身份验证模型。

问题是我无法覆盖用户名字段的默认表单字段验证器，这是我迄今为止尝试过的：

class RegularUserForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
    super(RegularUserForm, self).__init__(*args, **kwargs)
    self.fields['username'].help_text = None
    self.fields['username'].default_validators = []
    self.fields['username'].validators = []

不知道如何做到这一点，覆盖 help_text 成功，我也尝试使用 [None]，而不是[]与self.fields['username'].validators = [validate_username]其中validate_username是我创建了一个自定义的验证。

---

例如，这是表单代码：

class RegularUserForm(forms.ModelForm):
    username = forms.CharField(max_length=30, validators=[validate_username])
    email1 = forms.EmailField(required=True, label='')

class Meta:
    model = RegularUser
    fields = ['username', 'password', 'email', 'email1', 'gender', ]
    widgets = {'password': forms.PasswordInput(attrs={'placeholder': 'enter password'}),
               'email': forms.EmailInput(attrs={'placeholder': 'enter email'})
               }

def clean(self):
    cleaned_data = super(RegularUserForm, self).clean()
    email = self.cleaned_data.get('email')
    email1 = self.cleaned_data.get('email1')

    if email != email1:
        self.add_error("email1", 'emails do not match')
    return cleaned_data

任何帮助表示赞赏！

Answer 1

值得庆幸的是，我找到了解决方案，我覆盖了表单中的验证器，但没有覆盖模型中的验证器（也做了相反的事情），所以我必须这样做：

from utils import validate_username
class RegularUserForm(forms.ModelForm):
    username = forms.CharField(max_length=50, validators=[validate_username])

和

class RegularUser(AbstractUser):
    def __init__(self, *args, **kwargs):
        super(RegularUser, self).__init__(*args, **kwargs)
        self._meta.get_field('username').validators = [validate_username]

读者注意：确保覆盖模型和表单级别验证器！