在Woocommerce中的电子邮件订单总计表中插入自定义字段值作为新行

Question

I'm helping my mother create her website for her store i Denmark. It has gone okay, but now i'm stuck with a problem. I need to be able to make a custom field in the order complete email, that displays a track & trace number, i've inserted on the admin order page. Everything i've done up until now, haven't worked, so therefore i seek your help.

I've added a custom field already called Track & Trace Pakkenr. (see screenshot 1) But the problem is getting this in the order complete email, under shipping (forsendelse in danish, see screenshot 2)

I am also a complete and utter beginner in coding so if any of you can give any help or advice, please make it almost foolproof to follow.

Here are the screenshot 1 and screenshot 2.

Answer 1

To get this order custom field value displayed in order totals table on email notifications, use the following:

add_filter( 'woocommerce_get_order_item_totals', 'insert_custom_line_order_item_totals', 10, 3 );
function insert_custom_line_order_item_totals( $total_rows, $order, $tax_display ){
    // Only on emails notifications
    if( is_wc_endpoint_url() ) return $total_rows; // Exit

    $tracking_label = 'Track & Trace Pakkenr.'; // The tracking label name
    $tracking_value = $order->get_meta( $tracking_label ); // Get the tracking value (custom field).

    if( empty($tracking_value) ) return $total_rows; // Exit

    $new_total_rows  = array(); // Initializing

    // Loop through total rows
    foreach( $total_rows as $key => $value ){
        if( 'payment_method' == $key && ! empty($tracking_value) ) {
            $new_total_rows['tracking_parcel'] = array(
                'label' => $tracking_label,
                'value' => $tracking_value,
            );
        }
        $new_total_rows[$key] = $total_rows[$key];
    }

    return sizeof($new_total_rows) > 0 ? $new_total_rows : $total_rows;
}

Code goes in function.php file of your active child theme (or active theme). tested and works.

You will get something like:

From this: