def METHOD_NAME(self):
    # Handle updating the event
    if self.initial:
        self.instance.METHOD_NAME()
    else:
        Event.objects.create(title=self.cleaned_data['title'],
                             category=self.cleaned_data['category'],
                             host=self.host,
                             description=self.cleaned_data['description'],
                             start_date=self.cleaned_data['start_date'],
                             end_date=self.cleaned_data['end_date'],
                             allowed_domains=self.cleaned_data['allowed_domains']
                             )