/**
  * Export
  *
  * @return void
  */
 public function export()
 {
     parent::export();
     $relObj = new Centreon_Object_Relation_Host_Group_Host();
     $hostObj = new Centreon_Object_Host();
     $hgFieldName = $this->object->getUniqueLabelField();
     $hFieldName = $hostObj->getUniqueLabelField();
     $elements = $relObj->getMergedParameters(array($hgFieldName), array($hFieldName), -1, 0, $hgFieldName, null);
     foreach ($elements as $element) {
         echo $this->action . $this->delim . "addhost" . $this->delim . $element[$hgFieldName] . $this->delim . $element[$hFieldName] . "\n";
     }
 }