code: public function prepareRules(IFilter $objFilter, $arrFilterUrl)
      {
          $objSubFilter = new Filter($this->getMetaModel());
  
          foreach ($this->arrChildren as $objChildSetting) {
              $objChildSetting->prepareRules($objSubFilter, $arrFilterUrl);
          }
  
          $objFilterRule = new FilterRuleAnd();
          $objFilterRule->addChild($objSubFilter);
  
          $objFilter->addFilterRule($objFilterRule);
      }
docs: {@inheritdoc}