There no hooks on this page it seems? That would be a good thing to have here as you can display them every where else you might want and it seems a common question and an obvious place to put checkout custom field information.
I am not sure it warrants having a custom thank you page in my theme which I have to watch for updates. Still I would like to know how to do it.
Here is the code from my functions.php for my checkout custom fields.
add_action( 'woocommerce_after_checkout_billing_form', 'my_custom_checkout_field' );
function my_custom_checkout_field( $checkout ) {
echo '<div class="my_gift_wrap_checkout_field"><h2>' . __('Gift wrap') .'</h2>';
woocommerce_form_field( 'my_gift_wrap_checkbox', array(
'type' => 'checkbox',
'class' => array('checkbox_field'),
'label' => __('Gift wrap? - Yes please!'),
'required' => false,
), $checkout->get_value( 'my_gift_wrap_checkbox' ));
woocommerce_form_field( 'my_gift_wrap_field', array(
'type' => 'textarea',
'label' => __('Gift wrap instructions', 'woocommerce'),
'placeholder' => _x('Please enter any gift wrapping instructions. For example if you have multiple items in your order but only want 1 wrapped, or a special message to include.', 'placeholder', 'woocommerce'),
'required' => false,
'class' => array('form-row-wide'),
'clear' => true,
), $checkout->get_value( 'my_gift_wrap_field' ));
echo '</div>';
}
I display them in the customer email like this
add_action( "woocommerce_email_after_order_table", "my_woocommerce_email_after_order_table", 10, 1);
function my_woocommerce_email_after_order_table( $order ) {
$my_gift_wrap_checkbox = get_post_meta( $order->id, "my_gift_wrap_checkbox", true );
$gift_wrap = $my_gift_wrap_checkbox ? 'Yes please!' : 'No thank you.';
echo '<p><strong>Gift wrap?: </strong>' . $gift_wrap . '</p>';
if ( $my_gift_wrap_checkbox ) {
echo '<p><strong>Gift wrap instructions: </strong>' . get_post_meta( $order->id, "my_gift_wrap_field", true ) . '</p>';
}
}
