Django - passing extra arguments into upload_to callable function

Question

I know that you can use the upload_to parameter to pass a callable function to dynamically alter a FileFied/ImageField, etc. in a Django model.

The function called

Answer 1

The instance variable is the Badge() instance. You could access it's properties as usual

def format_badge_name(instance, filename):
    instance.name
    instance.file
    ...

You could name the instance 'self', and it might be easier to be understood:

def format_badge_name(self, filename):
    self.name
    self.file
    ...