WooCommerce order admin meta box HPOS compatible

Adds a meta box to the WooCommerce order edit screen for admins and Shop Managers.

use Automattic\WooCommerce\Internal\DataStores\Orders\CustomOrdersTableController;

add_action( 'add_meta_boxes', function() {

	add_meta_box(
		'metaboxname',
		'Meta Box Title',
		'metabox_callback',
		wc_get_container()->get(
			CustomOrdersTableController::class
		)->custom_orders_table_usage_is_enabled()
			? wc_get_page_screen_id( 'shop-order' )
			: 'shop_order';
	);

} );

function metabox_callback( $post_or_order_object ) {

	$order = ( $post_or_order_object instanceof WP_Post )
		? wc_get_order( $post_or_order_object->ID )
		: $post_or_order_object;

	if ( ! $order ) {
		return;
	}

	echo $order->get_meta( 'custom_field' );

}

Instructions for WooCommerce order admin meta box HPOS compatible

  1. Log into a staging or locally hosted clone of your site.
  2. Install and activate Code Snippets plugin.
  3. WP Admin > Snippets > Add New
  4. Copy and paste the code from the section above.
  5. Check to ensure formatting came over properly.
  6. Customize the code as desired.
  7. Add a meaningful title.
  8. Select whether to run on front-end or back-end (or both).
  9. Click “Save and Activate”.
  10. Test your site to ensure it works.
  11. Disable if any problems, or recover.
  12. Repeat for live environment.

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License

All code snippets are licensed GPLv2 (or later) matching WordPress licensing.

Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Disclaimer of warranty
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