如何覆盖模型上的delete（）并使其仍然可以使用相关的删除

I'm having a problem because I'm deleting a Widget by using some_widget_instance.delete(). I also have a model called WidgetFile with an override delete() method so that I can delete files off my hard drive when a WidgetFile is deleted. The problem I'm having is that if I delete a Widget, and it has WidgetFiles related to it like this:I'm having a problem because I'm deleting a Wid