How to display loop of custom fields in invoice?

Hello, i have dynamical fields based on number of virtual products in cart. I would like to display them also in Invoice after order. Tried this code:

add_action( 'wpo_wcpdf_after_order_data', 'wpo_wcpdf_my_custom_field', 10, 2 );
function wpo_wcpdf_my_custom_field ($template_type, $order) {
function order_has_virtual_product($order_id) {
    $order = wc_get_order($order_id);
    $items = $order->get_items();
    $virtual_product_count = 0;

    foreach ($items as $item) {
        $product = $item->get_product();
        if ($product->is_virtual()) {
            $virtual_product_count++;
        }
    }

    return $virtual_product_count;
}	
    $order_id = $order->get_id(); // Get the order ID from the $order object
    $virtual_product_count = order_has_virtual_product( $order_id );

    for ( $i = 1; $i <= $virtual_product_count; $i++ ) {	
        if ($template_type == 'invoice') {
            ?>
            <tr class="order_jmeno_ucastnika">
            <th>ú?astníci kurzu:</th>
			<?php for ( $i = 1; $i <= $virtual_product_count; $i++ ) { ?>
            <td><?php echo $order->get_meta('order_jmeno_ucastnika' . $i); ?></td> <?php } ?>
            </tr>
            <?php
    }
}}

When user order 2 virtual products or more there are generated fields with name order_jmeno_ucastnika1 order_jmeno_ucastnika2 .. etc

But in invoice is only first field “order_jmeno_ucastnika1” and others are not displayed.

• This topic was modified 1 year, 6 months ago by koupmi.