Charfield必須與另一個Charfield Django的表單驗證匹配

Question

您好我無法找到一個驗證，一個charfield必須與另一個charfield

比如我想這NEW_PASSWORD必須confirm_new_password匹配驗證匹配的文檔：

class ChangePassword(forms.Form): 
    new_password = forms.CharField(label='New Password', max_length=100, error_messages={'required': 'New password is required'}, widget=forms.PasswordInput()) 
    confirm_new_password = forms.CharField(label='Confirm New Password', max_length=100, error_messages={'required': 'Confirm New password is required'}, widget=forms.PasswordInput()) 

https://docs.djangoproject.com/en/1.9/ref/forms/fields/#charfield

看來主要的有required, max_length, min_length？

Answer 1

執行自定義表單驗證，你需要重寫潔（）函數，就像這樣：

class ChangePassword(forms.Form): 
    new_password = forms.CharField(label='New Password', max_length=100, error_messages={'required': 'New password is required'}, widget=forms.PasswordInput()) 
    confirm_new_password = forms.CharField(label='Confirm New Password', max_length=100, error_messages={'required': 'Confirm New password is required'}, widget=forms.PasswordInput()) 

    def clean(self): 
     password = self.cleaned_data['new_password'] 
     confirm_password = self.cleaned_data['confirm_new_password'] 
     if password != confirm_password: 
      raise forms.ValidationError('Your passwords do not match!')