Hide out of stock related products in WooCommerce

Question

In WooCommerce I would like to hide Out of Stock products from Related products in single product pages. Is it possible?

Any track is appreciated.

Answer 1

None of the answers given here worked for me (I believe the woocommerce_output_related_products_args filter mentioned does not accept meta_queries), and I wanted a solution that didn't use an SQL query, so I put together the solution below:

add_filter( 'woocommerce_related_products', 'mysite_filter_related_products', 10, 1 );
function mysite_filter_related_products( $related_product_ids ) {

    foreach( $related_product_ids as $key => $value ) {
        $relatedProduct = wc_get_product( $value );
        if( ! $relatedProduct->is_in_stock() ) {
            unset( $related_product_ids["$key"] );
        }
    }

    return $related_product_ids;
}

Hope that helps someone looking for a similar solution.