/**
  * Gibt die Accountclientmessages der übergebenen AccountId und des Clientmessage Events zurück
  * @param integer $account_id
  * @param \DragonJsonServer\Event\Clientmessages $eventClientmessages
  * @return array
  */
 public function getAccountclientmessagesByAccountIdAndEventClientmessages($account_id, \DragonJsonServer\Event\Clientmessages $eventClientmessages)
 {
     $entityManager = $this->getEntityManager();
     return $entityManager->createQuery('
             SELECT accountclientmessages
             FROM \\DragonJsonServerAccountclientmessage\\Entity\\Accountclientmessage accountclientmessages
             WHERE
                 accountclientmessages.account_id = :account_id
                 AND
                 accountclientmessages.created >= :from
                 AND
                 accountclientmessages.created < :to
                 AND
                 accountclientmessages.key IN (:keys)
             ORDER BY
                 accountclientmessages.created
         ')->execute(['account_id' => $account_id, 'from' => $eventClientmessages->getFrom(), 'to' => $eventClientmessages->getTo(), 'keys' => $eventClientmessages->getKeys()]);
 }