public static function all($perPage = -1, $orderby = 'menu_order', $order = 'ASC')
    {
        $order = strtoupper($order);

        $args = [
            'posts_per_page' => $perPage,
            'orderby'       => $orderby,
            'order'         => $order,
        ];

        return static::query($args);
    }