/**
* Get the count of new messages for a user
* @param string $username The username
* @param int $lastId The id of the last received message
* @return int The count fo new messages
*/
public function countNewMessages($username, $lastId = 0)
{
$userInfo = api_get_user_info_from_username($username);
$userId = $userInfo['user_id'];
return MessageManager::countMessagesFromLastReceivedMessage($userId, $lastId);
}
