public async Task <IActionResult> ReplyPost(PostViewModel model)
        {
            var userId = _userManager.GetUserId(User);
            var user   = _userManager.FindByIdAsync(userId).Result;
            var post   = _postService.GetById(model.Id);
            var reply  = new PostReply
            {
                Content = model.NewReply.Content,
                Created = DateTime.Now,
                User    = user,
                Post    = post
            };
            await _commentService.AddReply(reply);

            return(RedirectToAction("Index", "Post", new { Id = reply.Post.Id }));
        }