public function updateAll($fieldname, $fieldvalue, CriteriaElement $criteria = null, $force = false)
    {
        $set_clause = \is_numeric($fieldvalue) ? $fieldname . ' = ' . $fieldvalue : $fieldname . ' = ' . $this->db->quoteString($fieldvalue);
        $sql        = 'UPDATE ' . $this->db->prefix('smartfaq_answers') . ' SET ' . $set_clause;
        if (($criteria instanceof \CriteriaCompo) || ($criteria instanceof \Criteria)) {