filtering_listview.py

class TestRequestLoginListView(LoginListView):
    model = models.TestRequest
    paginate_by = 10

    def get_queryset(self):
        objects = self.model.objects.all()

        filter_argument = self.request.GET.get('filter')
        if filter_argument:
            conditions = [Q(config__name__icontains=word) for word in filter_argument.split()]
            filter_condition = reduce(or_, conditions)
            objects = objects.filter(filter_condition)

        orderby_argument = self.request.GET.get('orderby')
        if orderby_argument:
            objects = objects.order_by(orderby_argument)

        return objects

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['filter'] = self.request.GET.get('filter', 'give-default-value')
        context['orderby'] = self.request.GET.get('orderby', 'give-default-value')
        
        return context