Woocommerce get top 4 popular products sorted by attribute?

Question

WordPress

There is a list of goods. Can a query sort products by their attribute?
The attribute contains the number of downloads. Accordingly, you need to display the first 4 products with the largest downloads.
Tried the following code

$args = array(
                'post_type' => 'product',
                'posts_per_page' => 4,
                'meta_query' => [
                        'key' => 'pa_install',
                        'field' => 'slug',
                        'orderby' => 'slug',
                        'order' => 'desc',
                ],
            );

So

$args = array(
            'tax_query' => array(
                array(
                    'taxonomy' => 'pa_install',
                    'field' => 'slug', 
                    'orderby' => 'slug',
                    'order' => 'desc',
                )),
            'posts_per_page' => '4', 
            'post_type' => 'product',
            );

Is it possible to get a result?

Answer 1

Most likely, you will not set the order of products by attribute value in any way. The point is that there is no order option in tax_query, and the attribute values ​​are terms inside the 'pa_install' taxonomy. You can try to either write your own SQL query via $wpdb, or save the number of downloads in the meta field of the product, and do a 'meta_query' (now this query is meaningless). And yes, is the number of downloads exactly stored as an attribute of the product and why was it done this way at all?)