Django如何覆盖自定义窗体的子类中的clean（）方法？

Question

我创造了这样的自定义验证的自定义窗体：现在

class MyCustomForm(forms.Form): 
    # ... form fields here 

    def clean(self): 
     cleaned_data = self.cleaned_data 
     # ... do some cross-fields validation here 

     return cleaned_data 

，这种形式与子类有其自身的清洁方法的另一种形式。
触发clean（）方法的正确方法是什么？
目前，这是我做的：

class SubClassForm(MyCustomForm): 
    # ... additional form fields here 

    def clean(self): 
     cleaned_data = self.cleaned_data 
     # ... do some cross-fields validation for the subclass here 

     # Then call the clean() method of the super class 
     super(SubClassForm, self).clean() 

     # Finally, return the cleaned_data 
     return cleaned_data 

看来工作。但是，这使得两个clean（）方法返回cleaned_data，这在我看来有点奇怪。
这是正确的方法吗？

Answer 1

你做得很好，但你应该从超级呼叫负载cleaned_data这样的：

class SubClassForm(MyCustomForm): 
# ... additional form fields here 

def clean(self): 
    # Then call the clean() method of the super class 
    cleaned_data = super(SubClassForm, self).clean() 
    # ... do some cross-fields validation for the subclass 

    # Finally, return the cleaned_data 
    return cleaned_data