- carousel = Carousel.get(placement)
- banners = [
- item.get_banner()
- for item in carousel.carouselitem_set.all().select_related('banner')
- ]
-
- request = context['request']
- if 'banner' in request.GET:
- try:
- banner_id = int(request.GET['banner'])
- except (TypeError, ValueError):
- pass
- else:
- try:
- index = [b.pk for b in banners].index(banner_id)
- except ValueError:
- if request.user.is_staff:
- # Staff is allowed to preview any banner.
- try:
- banners.insert(0, Cite.objects.get(pk=banner_id))
- except Cite.DoesNotExist:
- pass
- else:
- # Put selected banner to front.
- banners = [banners[index]] + banners[:index] + banners[index+1:]
-