public IActionResult Create(PostCommentCreateModel model, string returnUrl = null) { if (CoreValidator.CheckIfStringIsNullOrEmpty(model.CommentText)) { ModelState.AddModelError(string.Empty, "You cannot submit an empty comment!"); return(this.ViewOrNotFound(model)); } this.commentService.Create(model.CommentText, User.GetUserId(), model.Id); return(RedirectToAction("Index", "Users")); }