public function quantity_get()
{
$status = 404;
$return["data"] = "";
$return["result"] = "NOOK";
$userId = $this->get("userId");
$quantity = CI_Message::getQuantityUnreadMessages($userId);
if (isset($quantity)) {
$status = 200;
$return["data"] = $quantity;
$return["result"] = "OK";
}
$this->response($return, $status);
}