/**
  * Maps a Role object contained in a recordset to an object representation
  *
  * @param $rs Recordset filled with the object data
  * @return objeto Mapped Role object
  */
 function &mapOne($rs)
 {
     if ($rs == null) {
         return null;
     }
     $object = new RoleUser();
     $object->setId($rs->fields["ID"]);
     $object->setUserId($rs->fields["userID"]);
     $object->setRoleId($rs->fields["roleID"]);
     return $object;
 }