/**
  * Return (optional) extra config settings for the current host
  */
 public function getExtraData()
 {
     $host = $this->getHost();
     if (!isset($this->hosts[$host]['extra'])) {
         return parent::getExtraData();
     }
     return $this->hosts[$host]['extra'];
 }
 private function getLocales()
 {
     return $this->domainConfiguration->getBackendLocales();
 }