class SearchResultsListView(LoginRequiredMixin, ListView):
    model = Book
    context_object_name = 'book_list'
    template_name = 'books/search_results.html'
	# queryset = Book.objects.all()
    def get_queryset(self):
        query = self.request.GET.get('q')
        return Book.objects.filter(Q(title__icontains=query) | Q(author__icontains=query))
the queryset attribute on ListView  holds all results by default, we can override the default queryset by providing a get_queryset() method.