@RequestMapping("edit-message")
  public String editMessage(Integer id, String message) {
    Message messageText = messages.findOne(id);
    messageText.message = message;
    if (message == "") {

    } else messages.save(messageText);
    return "redirect:/";
  }
 @RequestMapping("add-message")
 public String addMessage(String message) {
   Message messageText = new Message();
   messageText.message = message;
   messages.save(messageText);
   return "redirect:/";
 }
 @RequestMapping("/")
 public String home(Model model, HttpServletRequest request) {
   HttpSession session = request.getSession();
   String username = (String) session.getAttribute("username");
   model.addAttribute("username", username);
   model.addAttribute(
       "messages",
       messages
           .findAll()); // we call findAll() because it's a list of things instead of the
                        // "messages" repository above.
   return "home";
 }
 @RequestMapping("delete-message")
 public String deleteMessage(Integer id) {
   // Message messageText = messages.findOne(id);
   messages.delete(id);
   return "redirect:/";
 }