Add Invoice PDF URL to Order Meta

Hi @ifcstudios,

On version 3.6.0, launched 3 days ago (see changelog), we have improved the setting to configure the access type for the document link, under the Status tab:

Since there are more options now, we update the setting key from 'guest_access' to document_link_access_type, that is why the code stopped working.

However, I have updated the code, so it is working again for v3.6.0 or higher:

/**
 * PDF Invoices & Packing Slips for WooCommerce:
 * Save the PDF invoice link for guest access in the order data.
 * Note: Requires v3.6.0 or higher
 */
add_action( 'wpo_wcpdf_before_document', function( $document_type, $order ) {
	if( ! empty( $order ) && $document_type == 'invoice' ) {
		$debug_settings = get_option( 'wpo_wcpdf_settings_debug', array() );
		if( isset( $debug_settings['document_link_access_type'] ) && $debug_settings['document_link_access_type'] === 'guest' ) {
			$pdf_url = admin_url( 'admin-ajax.php?action=generate_wpo_wcpdf&template_type='.$document_type.'&order_ids=' . $order->get_id() . '&order_key=' . $order->get_order_key() );
			// Save the PDF invoice link under the '_wcpdf_document_link' meta key
			update_post_meta( $order->get_id(), '_wcpdf_document_link', esc_url( $pdf_url ) );
		}
	}
}, 10, 2 );

I tested the code twice and worked on my end.

Could you please tell me where you added it?

Please note that the Code Snippets plugin have two buttons: Save Changes and Save Changes and Activate: Make sure that you have clicked in this latter.

Did you open the PDF invoice in the order in which you are testing? Please note that you have to run this task for orders generated in the time window between updating to v3.6.0 and activating this code snippet.

Please note that meta key fields starting with underscore are not displayed directly in the order, i.e. they are hidden.

For instance:

• wcpdf_document_link – Will be displayed under the Custom Fields panel in the order details.
• _wcpdf_document_link – Will be hidden.

That said, with the Store Toolkit for WooCommerce plugin, you will be able to see all the order metadata, including hidden fields. Give it a try and let me know if you finally managed to find it