מוצרים ללא מלאי למטה

add_filter('apto/get_order_list', 'custom_wooc_apto_get_order_list', 10, 2);
    function custom_wooc_apto_get_order_list( $order_list, $sort_view_id )
        {
            
            //not for admin, only for Front Side
            if ( is_admin() )
                return $order_list;    
                
            global $APTO;
            
            //retrieve the sort post
            $sort_view_data     =   get_post($sort_view_id);
            $sortID             =   $sort_view_data->post_parent;   
            
            //check if is a woocommerce sort
            if ( ! $APTO->functions->is_woocommerce($sortID) )
                return $order_list;
            
            //identify the products out of stock
            $out_of_stock   =   array();
            
            foreach ( $order_list   as  $key    =>  $post_id ) 
                {
                    if ( get_post_meta($post_id, '_manage_stock', TRUE )    !=  'yes' )
                        continue;
                        
                    if ( get_post_meta($post_id, '_stock', TRUE)    <   1 )
                        {
                            $out_of_stock[] =   $post_id;
                            unset(  $order_list[$key] );
                        }
                }
                
            //re-index the keys
            $order_list =   array_values($order_list);
            
            //put the OutOf Stock at the end of list
            if ( count ( $out_of_stock )  >   0 )
                {
                    foreach (   $out_of_stock   as  $post_id    )
                        {
                            $order_list[]   =   $post_id;   
                        }
                }
            
            return $order_list;
            
        }
The above code works if Manage Stock is turned On. If the shop products does not use that and rely on Stock status the following code should be instead:

     add_filter('apto/get_order_list', 'custom_wooc_apto_get_order_list', 10, 2);
    function custom_wooc_apto_get_order_list( $order_list, $sort_view_id )
        {
            
            //not for admin, only for Front Side
            if ( is_admin() )
                return $order_list;    
                
            global $APTO;
            
            //retrieve the sort post
            $sort_view_data     =   get_post($sort_view_id);
            $sortID             =   $sort_view_data->post_parent;   
            
            //check if is a woocommerce sort
            if ( ! $APTO->functions->is_woocommerce($sortID) )
                return $order_list;
            
            //identify the products out of stock
            $out_of_stock   =   array();
            
            foreach ( $order_list   as  $key    =>  $post_id ) 
                {
                    if ( get_post_meta($post_id, '_stock_status', TRUE)    !=   'instock' )
	                    {
	                        $out_of_stock[] =   $post_id;
	                        unset(  $order_list[$key] );
	                    }
                }
                
            //re-index the keys
            $order_list =   array_values($order_list);
            
            //put the OutOf Stock at the end of list
            if ( count ( $out_of_stock )  >   0 )
                {
                    foreach (   $out_of_stock   as  $post_id    )
                        {
                            $order_list[]   =   $post_id;   
                        }
                }
            
            return $order_list;
            
        }