protected function GetGlobalQueryRestrictions($oListConfig)
    {
        $aRestrictions = array();
        $bRestrictToParentArticles = (false == $this->AllowArticleVariants());
        $aRestrictions[] = TdbShopArticleList::GetActiveArticleQueryRestriction($bRestrictToParentArticles);

        return $aRestrictions;
    }