Add shipping state to subject in WooCommerce new order email notification - php

Question

I've already succeeded in finding a way to change the subject of the WooCommerce new order email notification. The problem I'm facing is that the object $order doesn't process the shipping_state of the user profile.
Here is the code:
add_filter('woocommerce_email_subject_new_order', 'change_admin_email_subject', 1, 2);
function change_admin_email_subject( $subject, $order ) {
global $woocommerce;
$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
$subject = sprintf( 'Commande pour %s', $order->shipping_state);
return $subject;
}
I tried calling it directly from the user metadata, but it doesn't work, where it should appear the data, it appears blank.
Here is the code I tried:
function change_admin_email_subject( $subject, $user) {
global $woocommerce;
$user = wp_get_current_user(); $current_user_id =
$user -> ID;
$user_billing_state = get_user_meta($current_user_id, 'shipping_state', true);
$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
$subject = sprintf( 'Commande pour %s',
$user_billing_state);
return $subject;
}
Any advice would be appreciated.

Answer 1

Your code attempt(s) contain some mistakes:
$order->shipping_state is no longer applicable since WooCommerce 3 and has been replaced by $order->get_shipping_state()
The use of global $woocommerce; is not necessary
You use $blogname, but you don't do anything with this data, for example you don't display it in the subject
So you get:
function filter_woocommerce_email_subject_new_order( $subject, $order ) {
// Get shipping state
$shipping_state = $order->get_shipping_state();
// NOT empty
if ( ! empty( $shipping_state ) ) {
// Get blogname
$blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
// Change subject
$subject = sprintf( __( '%s: Commande pour %s', 'woocommerce' ), $blogname, $shipping_state );
}
return $subject;
}
add_filter( 'woocommerce_email_subject_new_order', 'filter_woocommerce_email_subject_new_order', 10, 2 );