Question

This is supposed to be a Django-specific, but I guess it’s Python anyway.

Basically, I don’t want to override the work of the original method in the class I am inheriting (could be a Model class), but I’d like to add additional validation. Is this possible? Any hint?

class MyUserAdminForm(forms.ModelForm):
    class Meta:
        model = User

    def clean(self):
        // do some additional work even though it's cleaned by parent's clean method

Answer 1

Call the super classes clean method:

def clean(self): 
    super(MyUserAdminForm, self).clean()
    # more cleaning

This is a common python thing to do when you subclass something and redefine functionaly but want to make sure you keep the super class functionality. Extremely common when you do an init method, as you always need to ensure the super class constructor gets called to set up the instance.