/**
  * Gets the storage row for this URLReference
  *
  * @return array
  */
 public function getStorageRow()
 {
     return parent::getStorageRow() + array('ref_target' => $this->url);
 }
 /**
  * Gets the storage row for this WikiReference
  *
  * @return array
  */
 public function getStorageRow()
 {
     return parent::getStorageRow() + array('ref_target_namespace' => $this->target->getNamespace(), 'ref_target_title' => $this->target->getDBkey());
 }