public static function enqueueByListener(ilNotificationConfig $notification, $ref_id)
{
global $ilDB;
$notification_id = ilNotificationDatabaseHandler::storeNotification($notification);
$valid_until = $notification->getValidForSeconds() ? time() + $notification->getValidForSeconds() : 0;
$query = 'INSERT INTO ' . ilNotificationSetupHelper::$tbl_notification_queue . ' (notification_id, usr_id, valid_until) ' . ' (SELECT %s, usr_id, %s FROM ' . ilNotificationSetupHelper::$tbl_userlistener . ' WHERE disabled = 0 AND module = %s AND sender_id = %s)';
$types = array('integer', 'integer', 'text', 'integer');
$values = array($notification_id, $valid_until, $notification->getType(), $ref_id);
$ilDB->manipulateF($query, $types, $values);
}