public static void show(Long id) { System.out.printf("=== id: %d\n", id); List<AuctionItem> items = AuctionItem.findAll(); for (AuctionItem item : items) { System.out.printf("--- id: %d\n", item.id); } AuctionItem item = AuctionItem.findById(id); item.viewCount++; item.save(); render(item); }