Woocommerce Bookings - Send Booking Confirmation Email to Custom Field Value - php

Question

I'm trying to hook into 'woocommerce_email_recipient_booking_confirmed' to update/add to the recipient field. The link below works perfectly for default WooCommerce emails (and their actions). The action works if I manually type in an email within the action but I need the email to come from the customer input (via a Custom Field on the product page).
I believe it is something to do with class-wc-email-booking-confirmed.php. When I compare it against class-wc-email-customer-completed-order.php
class-wc-email-booking-confirmed.php
public function trigger( $booking_id )
class-wc-email-customer-completed-order.php
public function trigger( $order_id, $order = false )
My code (which I haven't changed from the resource below):
add_filter( 'woocommerce_email_recipient_booking_confirmed', 'additional_customer_email_recipient', 9999, 2 ); // Completed Order
function additional_customer_email_recipient( $recipient, $order ) {
if ( ! is_a( $order, 'WC_Order' ) ) return $recipient; // when I comment this out, an ajax error is thrown. This is why I believe the order object directly accessible yet.
$additional_recipients = array(); // Initializing…
foreach( $order->get_items() as $item_id => $item_data ){
$email = wc_get_order_item_meta( $item_id, 'Email Address', true );
if( ! in_array( $email, $additional_recipients ) && strpos( $recipient, $email ) === false )
$additional_recipients[] = $email;
}
$additional_recipients = implode( ',', $additional_recipients);
if( count($additional_recipients) > 0)
{
$recipient = ','.$additional_recipients;
}
return $recipient;
}
Send Woocommerce Order to email address listed on product page

Answer 1

It was because it wasn't the order object, I just had to call get_order().
$order = $order->get_order();
Code:
add_filter( 'woocommerce_email_recipient_booking_confirmed', 'additional_customer_email_recipient', 10, 2 );
function additional_customer_email_recipient( $recipient, $order ) {
$order = $order->get_order();
$additional_recipients = array();
foreach( $order->get_items() as $item_id => $item_data ){
$email = wc_get_order_item_meta( $item_id, 'Email Address', true );
if( ! in_array( $email, $additional_recipients ) && strpos( $recipient, $email ) === false )
$additional_recipients[] = $email;
}
$additional_recipients = implode( ',', $additional_recipients);
if( count($additional_recipients) > 0)
{
$recipient = $additional_recipients;
}
return $recipient;
}