Django 如何在自定义表单的子类中覆盖 clean() 方法？

Question

我创建了一个带有自定义验证的自定义表单，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，这个表单是另一个表单的子类，它有自己的 clean 方法。
触发两个 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。然而，这使得两个 clean() 方法返回 cleaned_data在我看来这有点奇怪。
这是正确的方法吗？

Answer 1

你做得很好，但你应该像这样从 super 调用加载cleaned_data:

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