public ActionResult BlockedUser(int id, bool blocked)
 {
     using (var unitOfWork = new UnitOfWork(new AuthorizationModuleFactory()))
     {
         var userService = new UserService(unitOfWork);
         userService.MarkBlocked(id, blocked);
         unitOfWork.Commit();
     }
     return RedirectToLocal(Request.UrlReferrer.ToString(), "Users", "Administration");
 }