public function prepareOrder($order = null, $sort = null)
    {
        if ($order == null or $sort == null) {
            $this->setOrderBy = '';

            return $this;
        }

        if (!in_array($sort, ['ASC', 'DESC'])) {
            $sort = 'DESC';
        }

        $this->setOrderBy = ' ORDER BY ' . $order . ' ' . $sort;

        return $this;
    }