JezK

Edit File: OrderItemMetaUtil.php

<?php declare( strict_types = 1 ); namespace Automattic\WooCommerce\Internal\Utilities; use WC_Order_Item; defined( 'ABSPATH' ) || exit; /** * Helpers for the order item meta keys WooCommerce manages internally. * * @since 11.0.0 */ final class OrderItemMetaUtil { /** * Get the order item meta keys hidden from the admin order screen. * * @return string[] */ public static function get_hidden_keys(): array { /** * Filters the order item meta keys hidden from the admin order screen. * * @since 2.2.0 * @param string[] $hidden_keys Hidden order item meta keys. */ return apply_filters( 'woocommerce_hidden_order_itemmeta', array( '_qty', '_tax_class', '_product_id', '_variation_id', '_line_subtotal', '_line_subtotal_tax', '_line_total', '_line_tax', 'method_id', 'cost', '_reduced_stock', '_restock_refunded_items', ) ); } /** * Get the meta keys that cannot be added or edited as custom meta on an order item. * * Combines the hidden keys with the item's own internal meta keys, which back core item data. * * @param WC_Order_Item $item Order item to check. * @return string[] */ public static function get_reserved_keys( WC_Order_Item $item ): array { // @phpstan-ignore-next-line method.notFound Proxied via WC_Data_Store::__call() on the order item data store. $internal_meta_keys = (array) $item->get_data_store()->get_internal_meta_keys(); return array_values( array_unique( array_merge( self::get_hidden_keys(), $internal_meta_keys ) ) ); } }