Django：合併字段錯誤消息

Question

我創建了一個自定義django用戶帳戶創建系統，該系統使用電子郵件using this example。我想將電子郵件和密碼都顯示爲「此字段爲必填」的錯誤消息合併爲一個錯誤消息，其中顯示「電子郵件和密碼字段不能留空」

Answer 1

您可以爲您的型號編寫Model.clean

class MyCustomUser(AbstractBaseUser): 
    usermail = models.EMailField(.......) 

    def clean(self): 
     if not self.usermail and not self.password: 
      raise ValidationError({'usermail': 'Mail address and Password are required!'}) 

這會引發驗證錯誤，指向您的usermail字段。

Answer 2

你應該繼承forms.Form而不是forms.ModelFormUserCreationForm，定義了它的電子郵件/密碼字段與required=False和clean()方法檢查這兩個領域。

事情是這樣的：

class UserCreationForm(forms.Form): 

    email = forms.EmailField(required=False) 
    password = forms.CharField(required=False, widget=forms.PasswordInput) 

    def clean(self): 
     email = self.cleaned_data.get('email') 
     password = self.cleaned_data.get('password') 
     if not (email and password): 
      raise forms.ValidationError(
          'email and password fields cannot be left blank') 

    def save(self, commit=True): 
     user = User(email=self.cleaned_data['email']) 
     user.set_password(self.cleaned_data['password']) 
     if commit: 
      user.save() 
     return user