RedBeanPHP\QueryWriter\AQueryWriter::updateCache PHP Method

    private function updateCache()
    {
        $sql = $this->adapter->getSQL();
        if (strpos($sql, '-- keep-cache') !== strlen($sql) - 13) {
            // If SQL has been taken place outside of this method then something else then
            // a select query might have happened! (or instruct to keep cache)
            $this->cache = array();
            return FALSE;
        }
        return TRUE;
    }