private function removeIdxContentPage(AbstractClassContent $content, Page $page)
    {
        $query = 'DELETE FROM idx_page_content WHERE page_uid = :page '.
                'AND (content_uid IN (SELECT subcontent_uid FROM idx_content_content WHERE content_uid = :content) '.
                'OR content_uid IN (SELECT content_uid FROM idx_content_content WHERE subcontent_uid = :content))';

        $params = array(
            'page' => $page->getUid(),
            'content' => $content->getUid(),
        );

        return $this->executeUpdate($query, $params);
    }