head.py 文件源码

def image_viewer(request: HttpRequest, archive: int, page: int) -> HttpResponse:

    images = Image.objects.filter(archive=archive, extracted=True)
    if not images:
        raise Http404("Archive " + str(archive) + " has no extracted images")

    paginator = Paginator(images, 1)
    try:
        image = paginator.page(page)
    except (InvalidPage, EmptyPage):
        image = paginator.page(paginator.num_pages)

    image_object = image.object_list[0]

    if image_object.image_width / image_object.image_height > 1:
        image_object.is_horizontal = True

    d = {'image': image, 'backurl': redirect(image.object_list[0].archive).url,
         'images_range': range(1, images.count() + 1), 'image_object': image_object}

    return render(request, "viewer/image_viewer.html", d)