/**
  * Load system keys by a path.
  */
 public function loadByPath($path)
 {
     $repository = $this->getEntityManager()->getRepository('RegistryBundle:System');
     $stmt = $this->getEntityManager()->getConnection()->prepare('SELECT * FROM system s1
         WHERE s1.systemkey LIKE :path');
     $params = array('path' => $path);
     $stmt->execute($params);
     $result = array();
     while ($row = $stmt->fetch()) {
         $s = new System();
         $s->LoadByArray($row);
         $result[] = $s;
     }
     return $result;
 }