# überschreibt Klasse aus Listing 4
 class StrassenFestList(ListView):
     def get_queryset(self):
         qs = StrassenFest.objects.order_by('von')
         form_data = self.request.POST
         if 'von' in form_data and 'bis' in form_data:
             qs = qs.filter(von__gte=form_data['von'], bis__lte=
form_data['bis'])
         else:
             today = timezone.now()
             qs = qs.filter(von__year=today.year, von__month=
today.month)
         return qs

     def post(self, *args, **kwargs):
         return self.get(*args, **kwargs)