WC_AJAX::shipping_classes_save_changes PHP Méthode

    public static function shipping_classes_save_changes()
    {
        if (!isset($_POST['wc_shipping_classes_nonce'], $_POST['changes'])) {
            wp_send_json_error('missing_fields');
            exit;
        }
        if (!wp_verify_nonce($_POST['wc_shipping_classes_nonce'], 'wc_shipping_classes_nonce')) {
            wp_send_json_error('bad_nonce');
            exit;
        }
        if (!current_user_can('manage_woocommerce')) {
            wp_send_json_error('missing_capabilities');
            exit;
        }
        $changes = $_POST['changes'];
        foreach ($changes as $term_id => $data) {
            $term_id = absint($term_id);
            if (isset($data['deleted'])) {
                if (isset($data['newRow'])) {
                    // So the user added and deleted a new row.
                    // That's fine, it's not in the database anyways. NEXT!
                    continue;
                }
                wp_delete_term($term_id, 'product_shipping_class');
                continue;
            }
            $update_args = array();
            if (isset($data['name'])) {
                $update_args['name'] = wc_clean($data['name']);
            }
            if (isset($data['slug'])) {
                $update_args['slug'] = wc_clean($data['slug']);
            }
            if (isset($data['description'])) {
                $update_args['description'] = wc_clean($data['description']);
            }
            if (isset($data['newRow'])) {
                $update_args = array_filter($update_args);
                if (empty($update_args['name'])) {
                    continue;
                }
                $term_id = wp_insert_term($update_args['name'], 'product_shipping_class', $update_args);
            } else {
                wp_update_term($term_id, 'product_shipping_class', $update_args);
            }
            do_action('woocommerce_shipping_classes_save_class', $term_id, $data);
        }
        $wc_shipping = WC_Shipping::instance();
        wp_send_json_success(array('shipping_classes' => $wc_shipping->get_shipping_classes()));
    }