/**
  * @since version 0.85
  *
  * @see commonDBTM::getRights()
  **/
 function getRights($interface = 'central')
 {
     $values = parent::getRights();
     unset($values[UPDATE], $values[CREATE], $values[READ]);
     if ($interface == 'central') {
         $values[self::UPDATEALL] = __('Update all');
         $values[self::ADDALLTICKET] = __('Add to all tickets');
         $values[self::SEEPRIVATE] = __('See private ones');
     }
     $values[self::SEEPUBLIC] = __('See public ones');
     if ($interface == 'helpdesk') {
         unset($values[PURGE]);
     }
     return $values;
 }