sort out of stock products at the end in search results

Hello,

I am trying to sort out of stock products at the end of product list in search results page, but I can’t. I have add this code:

`function _nok_order_by_stock_status( $posts_clauses, $query ) {

// only change query on WooCommerce loops
if ( $query->is_main_query() && ( is_search() || is_product_category() || is_product_tag() || is_product_taxonomy() || is_shop() ) ) {
global $wpdb;

$posts_clauses[‘join’] .=
” LEFT JOIN (
SELECT post_id, meta_id, meta_value FROM $wpdb->postmeta
WHERE meta_key = ‘_stock_status’ AND meta_value <> ”
) istockstatus ON ($wpdb->posts.ID = istockstatus.post_id) “;

$posts_clauses[‘orderby’] =
” CASE istockstatus.meta_value WHEN
‘outofstock’ THEN 1
ELSE 0
END ASC, ” . $posts_clauses[‘orderby’];
}

return $posts_clauses;
}
add_filter( ‘posts_clauses’, ‘_nok_order_by_stock_status’, 2000, 2 );

It works perfectly on product categories, but in search results nothing goes right.

What can I do?

Please help,
thanks in advance.

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