覆盖AbstractUser模型的默认django用户名验证器

Question

我正在使用AbstractUser模型创建自定义验证模型。

的问题是，我无法覆盖的用户名字段的默认表单字段验证，这里是我迄今为止尝试：

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，重写help_text成功，我也尝试使用[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程序。

---

这里的表单代码，例如：

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办法，我是压倒一切的车型在形式验证，但不是那些（也做了相反的），所以我不得不这样做：为读者

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] 

注：请确保您同时覆盖模式和形式L evel验证器！

Answer 2

您可以在表单上明确定义一个字段。这样一来，你可以完全掌控的领域，包括它的验证：

class RegularUserForm(forms.ModelForm): 
    username = forms.CharField(max_length=30) 

    class Meta: 
     model = User