/**
* Returns number of new user messages.
* @return integer
*/
public function getNewMessagesCount()
{
$cache = Cache::getInstance()->getElement('user.newmessages', $this->id);
if ($cache === false) {
$cache = (new Query())->from(MessageReceiver::tableName())->where(['receiver_id' => $this->id, 'receiver_status' => Message::STATUS_NEW])->count();
Cache::getInstance()->setElement('user.newmessages', $this->id, $cache);
}
return $cache;
}
