Django如何在自定义表单的子类中重写clean()方法？

Question

我创建了一个自定义表单,如下所示:

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

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

        return cleaned_data

现在,这个表单被子类化为另一个具有自己的清洁方法的表单.
触发clean()方法的正确方法是什么？
目前,这就是我所做的:

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

它似乎工作.但是,这会使两个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,但你应该从超级调用加载cleaning_data,如下所示:

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