public ActionResult PostTweet(TweetInsertViewModel model)
        {
            if (!this.ModelState.IsValid)
            {
                return RedirectToAction("PostTweet");
            }

            var tweet = new Tweet
            {
                CreatedOn = DateTime.Now,
                Content = model.Content,
                IsVisible = true,
                UserId = this.User.Identity.GetUserId(),
                
            };

            GetTags(model.Tags, tweet);

            this.tweetServices.Add(tweet);

            return RedirectToAction("MyTweets");
        }
 public ActionResult PostTweet()
 {
     var model = new TweetInsertViewModel();
     return this.View(model);
 }