code: public function getFilterOptions($idList, $usedOnly, &$arrCount = null)
      {
          $queryBuilder = $this->connection->createQueryBuilder()
              ->select('*')
              ->from($this->getValueTable());
  
          $this->buildWhere($queryBuilder, $idList, $this->getMetaModel()->getActiveLanguage());
  
          $statement     = $queryBuilder->execute();
          $arrOptionizer = $this->getOptionizer();
  
          $arrReturn = array();
          while ($objValue = $statement->fetch(\PDO::FETCH_OBJ)) {
              $arrReturn[$objValue->{$arrOptionizer['key']}] = $objValue->{$arrOptionizer['value']};
          }
          return $arrReturn;
      }
docs: {@inheritDoc}