/**
  * updates the capability path description
  */
 function updateCapabilityPathDescription($name, $description)
 {
     $dao =& CopixDAOFactory::instanceOf('copix:CopixCapabilityPath');
     //Check if the given capability path exists or not.
     if (($record = $dao->get($name)) === null) {
         //does not exist, cannot update
         return null;
     }
     //updating
     $record->description_ccpt = $description;
     return $dao->update($record);
 }