Suggestions::updateSuggestionWithVoteSum PHP Method

    private function updateSuggestionWithVoteSum($sum, $suggestId)
    {
        $sth = $this->db->prepare('UPDATE suggestions SET votes = ? WHERE id = ?');
        $sth->bindParam(1, $sum, PDO::PARAM_INT);
        $sth->bindParam(2, $suggestId, PDO::PARAM_INT);
        $sth->execute();
    }