woocommerce-uczestnicy.php

<?php
// Wstaw do Functions lub wtyczki funkcyjnej usuwając <?php i koniec kodu php ? > z konca pliku

add_action( 'woocommerce_after_order_notes', 'jcz_uczestnicy_woocommerce' );

function jcz_uczestnicy_woocommerce( $checkout ) {
global $woocommerce;

$class_basket_count = $woocommerce->cart->cart_contents_count;
$class_basket_count = $class_basket_count - 0;
if($class_basket_count >= 0){
    echo '<div id="jcz_uczestnicy_woocommerce"><h3>' . __('Lista Uczestników') . '</h3>';
    for ($i=1; $i <= $class_basket_count; $i++ ){

        woocommerce_form_field( 'guest-name-'.$i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-wide'),
            'label'         => __('Imię Nazwisko uczestnika'),
            'placeholder'   => __('Wpisz imię i nazwisko'),
            ), $checkout->get_value( 'guest-name-'.$i ));

        woocommerce_form_field( 'guest-email-'.$i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-wide'),
            'label'         => __('E-mail gościa'),
            'placeholder'   => __('Wpisz e-mail'),
            ), $checkout->get_value( 'guest-email-'.$i ));
    }
    echo '</div>';
}
}

add_action( 'woocommerce_checkout_update_order_meta', 'jcz_uczestnicy_woocommerce_update_order_meta' );

function jcz_uczestnicy_woocommerce_update_order_meta( $order_id ) {
global $woocommerce;
$class_basket_count = $woocommerce->cart->cart_contents_count;
for ($i=1; $i <= $class_basket_count; $i++ ){
    if ( ! empty( $_POST['guest-name-'.$i] ) ) {
        update_post_meta( $order_id, 'guest-name-'.$i, sanitize_text_field( $_POST['guest-name-'.$i] ) );
        update_post_meta( $order_id, 'guest-email-'.$i, sanitize_text_field( $_POST['guest-email-'.$i] ) );
    }

}
}

add_action( 'woocommerce_admin_order_data_after_shipping_address', 'jcz_uczestnicy_woocommerce_display_admin_order_meta', 10, 1 );

function jcz_uczestnicy_woocommerce_display_admin_order_meta($order){
$totla_class_ordered = $order->get_item_count();
echo '<h4>Lista uczestników</h4>';
echo '<div class="uczestnicy-woo-jcz"><table>';
echo '<thead><tr><th>Imię i Nazwisko</th><th>E-Mail uczestnika</th></tr></thead>';

for ($i=1; $i <= $totla_class_ordered; $i++ ){
    echo '<tr><td>'.get_post_meta( $order->id, 'guest-name-'.$i, true ) . '</td><td>'.get_post_meta( $order->id, 'guest-email-'.$i, true ) . '</td>';
}
echo '</table></div>';
}
?>