public ActionResult AddComment(CommentModel model)
 {
     if((!AuthProvider.IsAuthorized)&&model.Name.IsNullOrWhiteSpace())
         throw new Exception("Не удалось добавить комментарий");
     using (var db=new DatabaseModel())
     {
         db.comment.Add(new comment
         {
             ClientId = AuthProvider.IsAuthorized ? (int?) AuthProvider.ClientId : null,
             Name = model.Name,
             Text = model.Message
         });
         db.SaveChanges();
     }
     return new JsonResult{Data = true, JsonRequestBehavior = JsonRequestBehavior.DenyGet};
 }
 public ActionResult _CommentAddingPartial()
 {
     CommentModel model=new CommentModel();
     return PartialView("Partial/_CommentAddingPartial",model);
 }