public ActionResult Index(IndexViewModel model)
        {
            RVVRBDBEntities2 rv = new RVVRBDBEntities2();

            ApplicationDbContext db = new ApplicationDbContext();
            int userID = Convert.ToInt32(User.Identity.GetUserId());

            var user = rv.AspNetUsers.Single(i => i.Id == userID);
            
            if (model.ProfileImage != null)
            {
                MiddleTier mt = new MiddleTier();

                HttpPostedFileBase photo = model.ProfileImage;
                string extension = Path.GetExtension(photo.FileName);
                string imagePath = "/profile/" + user.UserName + "/";
                string filename = user.UserName + "-" + DateTime.Now.Ticks;
                string fullfilepath = imagePath + filename + extension;
                string serverpath = Server.MapPath("~")+"\\profile\\"+user.UserName+"\\";
                string fullserverfilepath = serverpath + filename + extension;

                Session["ProfileImage"] = fullfilepath;

                mt.UpdateDbImage(Convert.ToInt32(User.Identity.GetUserId()), fullfilepath);

                bool pathExists = Directory.Exists(serverpath);
                if (!pathExists)
                    Directory.CreateDirectory(serverpath);

                photo.SaveAs(fullserverfilepath);
            }

            return View(model);
        }
        public string GetProfileImage()
        {
            var profileImage = Session["ProfileImage"];

            if (profileImage == null)
            {
                RVVRBDBEntities2 rv = new RVVRBDBEntities2();
                
                ApplicationDbContext db = new ApplicationDbContext();
                int userID = Convert.ToInt32(User.Identity.GetUserId());

                string image = rv.AspNetUsers.Single(i => i.Id == userID).ProfileImage;

                Session["ProfileImage"] = image;
            }
            return (string) Session["ProfileImage"];
        }