code: public function prepareRules(IFilter $objFilter, $arrFilterUrl)
      {
          if ($this->get('items')) {
              $arrItems = explode(',', (string) $this->get('items'));
          } else {
              $arrItems = array();
          }
          $objFilter->addFilterRule(new FilterRuleIdList($arrItems));
      }
docs: {@inheritDoc}
  
  @SuppressWarnings(PHPMD.UnusedFormalParameter)