public ActionResult AlterRecention(RecentionViewModel model)
 {
     if (ModelState.IsValid)
     {
         IUser user = Facade.GetUser(User.Identity.Name);
         user.AlterRecention(model);
         return RedirectToAction("Detail", "View", new { id = model.AppID });
     }
     return View("WriteRecention", model);
 }
 public ActionResult WriteRecention(RecentionViewModel recention)
 {
     if (ModelState.IsValid)
     {
         IUser user = Facade.GetUser(User.Identity.Name);
         user.AddRecension(recention);
         TempData["Message"] = string.Format("Sie haben die App '{0}' erfolgreich bewertet.", recention.AppName);
         return RedirectToAction("Detail", "View", new { id = recention.AppID });
     }
     ViewBag.ErrorMessage = "App bewerten fehlgeschlagen. Bitte korregieren Sie ihre Daten.";
     return View(recention);
 }