Woocommerce - Print Product's Custom Field In Email - wordpress

Question

In Woocommerce, I need to print a custom field on the Completed Order email.
The template is completely unique in my themes woocommerce/emails folder because the default template doesn't work for my needs.
As such I'm trying to display the following:
Title, Quantity and two custom fields
This needs to be included in the customer-completed-order.php email template but I am not certain what syntax is necessary to print it.
I found something by Googling but it doesn't work:
<?php foreach ( $items as $item_id => $item ) :
$_product = apply_filters( 'woocommerce_order_item_product', $order->get_product_from_item( $item ), $item );
?>
<p>Class: <?php echo get_post_meta($_product->id,'name',true); ?></p>
<p>Date: <?php echo get_post_meta($_product->id,'date_text_field',true); ?></p>
<p>Time: <?php echo get_post_meta($_product->id,'time_text_field',true); ?></p>
<p>Number of Spaces: <?php echo get_post_meta($_product->id,'qty',true); ?></p>
<?php endforeach; ?>

Answer 1

Try adding to action hook,
do_action( 'woocommerce_order_item_meta_start', $item_id, $item, $order );
OR
do_action( 'woocommerce_order_item_meta_end', $item_id, $item, $order );
This could be used in following way:
add_action( 'woocommerce_order_item_name', 'action_custom_order_meta', 10, 3 );
OR
add_action( 'woocommerce_order_item_name', 'action_custon_order_meta', 10, 3 );
Following is the callback handler function.
function action_custom_order_meta($item_name, $item, $false){
$product_id = $item['product_id'];
$product_custom_date = get_post_meta($product_id, 'product_custom_date', true);
$product_custom_time = get_post_meta($product_id, 'product_custom_time', true);
$product_custom_meta = 'Date: ' . $product_custom_date . ' <br> Time: ' . $product_custom_time;
echo $product_custom_meta;
}
Change the custom field names to appropriate. You might also need to wrap the output according to the required markup for your custom email.
Hope this helps.