def auctions_info(request):
    auctions = Auction.objects.waiting_pledge()
    return HttpResponse(cjson.encode(auctions_to_dict(auctions)))
def auction_info(request, auction_id):
    auction = [get_object_or_404(Auction, id=auction_id)]
    return HttpResponse(cjson.encode(auctions_to_dict(auction)))