/**
  * Maps a ObjectRelation object contained in a recordset to an object representation
  *
  * @param $rs Recordset filled with the object data
  * @return objeto Mapped ObjectRelation object
  */
 function &mapOne($rs)
 {
     if ($rs == null) {
         return null;
     }
     $object = new ObjectRelation();
     $object->setId($rs->fields["ID"]);
     $object->setParentID($rs->fields["parentID"]);
     $object->setChildID($rs->fields["childID"]);
     $object->setPosition($rs->fields["position"]);
     return $object;
 }