public ActionResult AddComment(string Id, int ItemId,string comment)
        {
            DataRepository helper = new DataRepository();

            string commentLeaver = "";
            if (Session["Username"] == null)
            {
                ViewData["Alert"] = "Please sign in to leave a comment";
                Item itemB = helper.getItem(ItemId);
                IList<ItemComment> commentsB = helper.getComments(ItemId);
                IList<Link> linksB = helper.getLinks(ItemId);

                DiscussionViewModel modelB = new DiscussionViewModel(ItemId, commentsB, linksB,"", "", itemB, "", "","","");
                return PartialView(modelB);
            }
            else
                commentLeaver = Session["Username"].ToString();

            helper.AddComment(commentLeaver, ItemId, comment);

            Item item = helper.getItem(ItemId);
            IList<ItemComment> comments = helper.getComments(ItemId);
            IList<Link> links = helper.getLinks(ItemId);

            DiscussionViewModel model = new DiscussionViewModel(ItemId, comments, links,"", "", item, "", "","","");

            return PartialView(model);
        }
 public ActionResult AllLinks(int ItemId)
 {
     DataRepository helper = new DataRepository();
     IList<Link> links = helper.getLinks(ItemId);
     Item item = helper.getItem(ItemId);
     DiscussionViewModel model = new DiscussionViewModel(ItemId,null, links, "", "", item, "", "", "", "");
     return PartialView(model);
 }
        public ActionResult LikeComment(string Id, int ItemId)
        {
            DataRepository helper = new DataRepository();

            helper.LikeComment(Id);

            Item item = helper.getItem(ItemId);
            IList<ItemComment> comments = helper.getComments(ItemId);
            IList<Link> links = helper.getLinks(ItemId);

            DiscussionViewModel model = new DiscussionViewModel(ItemId, comments, links, "", "", item, "", "","","");

            ViewData["Id"] = Id;

            return PartialView(model);
        }
        public ActionResult Discussion(string Id, string state, int itemId)
        {
            DataRepository helper = new DataRepository();

            Item item = helper.getItem(itemId);
            IList<ItemComment> comments = helper.getComments(itemId);
            IList<Link> links = helper.getLinks(itemId);
            string topLink = helper.getTopLink(itemId);
            string youtubeLink = helper.getTopYoutubeLink(itemId);

            DiscussionViewModel model = new DiscussionViewModel(itemId, comments, links, Id, state, item,"","",topLink,youtubeLink);

            return View(model);
        }
        public ActionResult DeleteLink(string Id, int ItemId)
        {
            DataRepository helper = new DataRepository();

            helper.DeleteLink(Convert.ToInt32(Id));

            IList<Link> links = helper.getLinks(ItemId);

            DiscussionViewModel model = new DiscussionViewModel(-1, null, links, "", "", null, "", "", "", "");

            ViewData["Id"] = Id;

            return PartialView(model);
        }