django - 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 = []

不确定如何执行此操作，覆盖 help_text 成功，我还尝试使用 [None] 而不是 [] 和 self.fields[' username'].validators = [validate_username] 其中 validate_username 是我创建的自定义验证器。

<小时/>

以下是表单代码示例:

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

感谢任何帮助!

Answer 1

幸运的是，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!