public function getFacetFieldsFromSchema(array &$parentInformation)
    {
        $pageRecord = $parentInformation['flexParentDatabaseRow'];
        $configuredFacets = $this->getConfiguredFacetsForPage($pageRecord['pid']);

        if (!is_array($pageRecord)) {
            $parentInformation['items'] = [];
            return;
        }

        $newItems = $this->getParsedSolrFieldsFromSchema($configuredFacets, $pageRecord);
        $parentInformation['items'] = $newItems;
    }