Add WooCommerce VAT Number Checkout Page [duplicate] - php

Question

This question already has an answer here:
Custom VAT field issue in Woocommerce
(1 answer)
Closed 10 months ago.
I added a function to the website according to the instructions. Unfortunately, I have an error in "received order" and in the admin panel "customer order"
/***************************** FRONTEND ****************************************/
/**************************
Filter to add a VAT field to:
- My Account - Edit Form -- Billing fields
- Checkout - Edit Form - Billing Fields
This function is also reordering the form fields.
***************************/
function add_woocommerce_billing_fields($billing_fields){
//reorder woo my billing address form fields
$billing_fields2['billing_first_name'] = $billing_fields['billing_first_name'];
$billing_fields2['billing_last_name'] = $billing_fields['billing_last_name'];
$billing_fields2['billing_vat'] = array(
'type' => 'text',
'label' => __('VAT number', 'keyelp-shop-customization' ),
'class' => array('form-row-wide'),
'required' => false,
'clear' => true
);
$merged_billing_fields = $billing_fields2 + $billing_fields;
return $merged_billing_fields;
}
add_filter('woocommerce_billing_fields' , 'add_woocommerce_billing_fields');
/*********
Filters to add VAT when printing billing address on:
- (1) My account
- (2) Checkout - Order Received (after checkout completion),
+++ Additional filters to format the printed output.
********/
// (1) Printing the Billing Address on My Account
add_filter( 'woocommerce_my_account_my_address_formatted_address', 'njengah_my_account_my_address_formatted_address', 10, 3 );
function njengah_my_account_my_address_formatted_address( $fields, $customer_id, $type ) {
if ( $type == 'billing' ) {
$fields['vat'] = get_user_meta( $customer_id, 'billing_vat', true );
}
return $fields;
}
// (2) Checkout -- Order Received (printed after having completed checkout)
add_filter( 'woocommerce_order_formatted_billing_address', 'njengah_add_vat_formatted_billing_address', 10, 2 );
function njengah_add_vat_formatted_billing_address( $fields, $order ) {
$fields['vat'] = $order->billing_vat;
return $fields;
}
// Creating merger VAT variables for printing formatting
add_filter( 'woocommerce_formatted_address_replacements', 'njengah_formatted_address_replacements', 10, 2 );
function njengah_formatted_address_replacements( $address, $args ) {
$address['{vat}'] = '';
$address['{vat_upper}']= '';
if ( ! empty( $args['vat'] ) ) {
$address['{vat}'] = $args['vat'];
$address['{vat_upper}'] = strtoupper($args['vat']);
}
return $address;
}
//Defining the Spanish formatting to print the address, including VAT.
add_filter( 'woocommerce_localisation_address_formats', 'njengah_localisation_address_format' );
function njengah_localisation_address_format( $formats ) {
$formats['ES'] = "{name}\n{company}\n{vat_upper}\n{address_1}\n{address_2}\n{postcode} {city}\n{state}\n{country}";
return $formats;
}
/***************************** ADMIN USER PROFILE PAGE ****************************************/
/***************
Filter to add VAT Customer meta fields (user profile field on the billing address grouping)
*****************/
add_filter( 'woocommerce_customer_meta_fields', 'njengah_customer_meta_fields' );
function njengah_customer_meta_fields( $fields ) {
$fields['billing']['fields']['billing_vat'] = array(
'label' => __( 'VAT number', 'njengah' )
);
return $fields;
}
/*************************** ADMIN ORDER PAGE ****************************************/
/*********
Filter to add VAT to the Edit Form on Order -- Admin page
*********/
add_filter( 'woocommerce_admin_billing_fields', 'njengah_admin_billing_fields' );
function njengah_admin_billing_fields( $fields ) {
$fields['vat'] = array(
'label' => __( 'VAT number', 'njengah' ),
'show' => true
);
return $fields;
}
/****************
Filter to copy the VAT field from User meta fields to the Order Admin form (after clicking the dedicated button on the admin page)
******************/
add_filter( 'woocommerce_found_customer_details', 'njengah_found_customer_details' );
function njengah_found_customer_details( $customer_data ) {
$customer_data['billing_vat'] = get_user_meta( $_POST['user_id'], 'billing_vat', true );
return $customer_data;
}
The error that appears is
Order properties should not be accessed directly. Backtrace:
require('wp-admin/edit-form-advanced.php'), do_meta_boxes,
WC_Meta_Box_Order_Data::output,
WC_Order->get_formatted_billing_address,
apply_filters('woocommerce_order_formatted_billing_address'),
WP_Hook->apply_filters, add_vat_formatted_billing_address,
WC_Abstract_Legacy_Order->__get, wc_doing_it_wrong
what could be the problem?

Answer 1

The error says Order properties should not be accessed directly.
You have called the order vat metadata like this $order->billing_vat;. Instead you can get the metadata like $order->get_meta('billing_vat'); or by using the function get_post_meta($order->get_id(), 'billing_vat', true);
Update the function like this.
// (2) Checkout -- Order Received (printed after having completed checkout)
add_filter( 'woocommerce_order_formatted_billing_address', 'njengah_add_vat_formatted_billing_address', 10, 2 );
function njengah_add_vat_formatted_billing_address( $fields, $order ) {
$fields['vat'] = get_post_meta($order->get_id(), 'billing_vat', true);
return $fields;
}