/**
 * Default WP action called after a post is deleted, for deleting ID project order when a transaction is deleted
 */
function iditexch_delete_order($post_id)
{
    $orders = get_post_meta($post_id, '_itexch_order_pairing', true);
    if (!empty($orders)) {
        foreach ($orders as $order) {
            $delete = ID_Order::delete_order($order);
        }
    }
}