/**
   * Creates a Discussion Post
   *
   * <p>- Requires a cookie for the session user - Requires a comment and threadId request parameter
   * for the POST
   *
   * @param req The HTTP Request
   * @param res The HTTP Response
   */
  public void createPostAction(HttpServletRequest req, HttpServletResponse res) {
    // Ensure there is a cookie for the session user
    if (AccountController.redirectIfNoCookie(req, res)) return;

    Map<String, Object> viewData = new HashMap<>();

    if (req.getMethod() == HttpMethod.Post) {
      DiscussionManager dm = new DiscussionManager();

      HttpSession session = req.getSession();
      Session userSession = (Session) session.getAttribute("userSession");

      // Create the discussion post
      DiscussionPost post = new DiscussionPost();
      post.setUserId(userSession.getUserId());
      post.setMessage(req.getParameter("comment"));
      post.setThreadId(Integer.parseInt(req.getParameter("threadId")));

      dm.createPost(post);

      redirectToLocal(req, res, "/group/discussion/?threadId=" + req.getParameter("threadId"));
    } else {
      httpNotFound(req, res);
    }
  }