早安， 请我根据每个产品类型（简单，变量，分组，外部）动态显示“再次订购”按钮。组合不同来源后，我已经能够做到这一点；
constant SAMPLE_T_MAX : integer := 2**(sample_t'length-1)-1;
max_sample <= to_signed(SAMPLE_T_MAX, max_sample'length);
但是在我这样做之后，它根本不显示按钮，我不确定发生了什么。我也很想知道如何全局获取订单的产品类型，因为我将使用更多的<?php
/**
* Order again button
*
* This template can be overridden by copying it to yourtheme/woocommerce/order/order-again.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you
* (the theme developer) will need to copy the new files to your theme to
* maintain compatibility. We try to do this as little as possible, but it does
* happen. When this occurs the version of the template file will be bumped and
* the readme will list any important changes.
*
* @see https://docs.woocommerce.com/document/template-structure/
* @author WooThemes
* @package WooCommerce/Templates
* @version 2.3.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
?>
<?php
function add_order_again_btn( $order ) {
$order = new WC_Order( $order_id );
foreach ( $order->get_items() as $item ) {
// Get an instance of the WC_Product Object from the WC_Order_Item_Product
$product = $item->get_product();
if( $product->is_type('simple') && is_virtual() == true ){
return ?>
<a href="<?php echo esc_url( wp_nonce_url( add_query_arg( 'order_again', $order->get_id() ) , 'woocommerce-order_again' ) ); ?>" class="button"><?php _e( 'Topup again', 'woocommerce' ); ?></a>
<?php ;
} elseif( !$product->is_type('lottery') ) {
return ?>
<a href="<?php echo esc_url( wp_nonce_url( add_query_arg( 'order_again', $order->get_id() ) , 'woocommerce-order_again' ) ); ?>" class="button"><?php _e( 'Bid Again', 'woocommerce' ); ?></a>
<?php ;
} else {
return ?>
<a href="<?php echo esc_url( wp_nonce_url( add_query_arg( 'order_again', $order->get_id() ) , 'woocommerce-order_again' ) ); ?>" class="button"><?php _e( 'Order Again', 'woocommerce' ); ?></a>
<?php ;
}
break; // We stop the loop and keep the first item
}
}
add_shortcode('dyn-order-again-btn', 'izzycart_add_order_again_btn');
?>
<p class="order-again">
<?php do_shortcode('[dyn-order-again-btn]'); ?>
</p>
，以便在显示简单产品或任何其他产品类型时可以显示一些内容。