WooCommerce error: Coupon properties should not be accessed directly

Question

1° 出于必要，我在模板 order-details.php 文件中创建了这个条件，我知道，不推荐这样做。

2° 现在我必须将此脚本放入 order-details.php（结帐页面）中的运行过滤器中.

3° 问题：当我为产品应用优惠券代码并下订单时，我总是收到以下错误debug.log 文件中的消息

[20-Nov-2020 14:19:21 UTC] PHP Notice:  code was called <strong> incorrectly </strong>.
Coupon properties should not be accessed directly.
Backtrace: require('wp-blog-header.php'),
require_once('wp-includes/template-loader.php'),
include('/themes/astra/page.php'),
astra_content_page_loop,
do_action('astra_content_page_loop'),
WP_Hook->do_action,
WP_Hook->apply_filters, Astra_Loop->loop_markup_page, Astra_Loop->loop_markup,
do_action('astra_page_template_parts_content'), WP_Hook->do_action, WP_Hook->apply_filters,
Astra_Loop->template_parts_page, get_template_part, locate_template, load_template,
require('/themes/astra/template-parts/content-page.php'), the_content, apply_filters('the_content'),
WP_Hook->apply_filters, do_shortcode, preg_replace_callback, do_shortcode_tag, 
WC_Shortcodes::checkout, WC_Shortcodes::shortcode_wrapper, WC_Shortcode_Checkout::output,
WC_Shortcode_Checkout::order_received, wc_get_template, include('/themes/astra-child/woocommerce/
checkout/thankyou.php'), do_action('woocommerce_thankyou'), WP_Hook->do_action, WP_Hook->app in 
C:\xampppserver2\htdocs\mrdigital\wp-includes\functions.php on line 5229

这是我的订单-details.php（结帐页面）文件

<?php
/**
 * Order details
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/order/order-details.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/
 * @package WooCommerce\Templates
 * @version 4.6.0
 */

defined( 'ABSPATH' ) || exit;

$order = wc_get_order( $order_id ); // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited

if ( ! $order ) {
    return;
}

$order_items           = $order->get_items( apply_filters( 'woocommerce_purchase_order_item_types', 'line_item' ) );
$show_purchase_note    = $order->has_status( apply_filters( 'woocommerce_purchase_note_order_statuses', array( 'completed', 'processing' ) ) );
// $show_customer_details = true; 
// Para exibir o template ENDEREÇO DE FATURAMENTO na página
$show_customer_details = is_user_logged_in() && $order->get_user_id() === get_current_user_id();
$downloads             = $order->get_downloadable_items();
$show_downloads        = $order->has_downloadable_item() && $order->is_download_permitted();

if ( $show_downloads ) {
    wc_get_template(
        'order/order-downloads.php',
        array(
            'downloads'  => $downloads,
            'show_title' => true,
        )
    );
}
?>
<ul class="list-unstyled">
    <li class="text-right">
        <a href="<?php echo site_url(); ?>" class="button">P&aacute;gina Inicial</a>
    </li>
</ul>
<section class="woocommerce-order-details">
    <?php do_action( 'woocommerce_order_details_before_order_table', $order ); ?>

    <h2 class="woocommerce-order-details__title"><?php esc_html_e( 'Order details', 'woocommerce' ); ?></h2>

    <table class="woocommerce-table woocommerce-table--order-details shop_table order_details">

        <thead>
            <tr>
                <th class="woocommerce-table__product-name product-name"><?php esc_html_e( 'Product', 'woocommerce' ); ?></th>
                <th class="woocommerce-table__product-table product-total"><?php esc_html_e( 'Total', 'woocommerce' ); ?></th>
            </tr>
        </thead>

        <tbody>
            <?php
            do_action( 'woocommerce_order_details_before_order_table_items', $order );

            foreach ( $order_items as $item_id => $item ) {
                $product = $item->get_product();

                wc_get_template(
                    'order/order-details-item.php',
                    array(
                        'order'              => $order,
                        'item_id'            => $item_id,
                        'item'               => $item,
                        'show_purchase_note' => $show_purchase_note,
                        'purchase_note'      => $product ? $product->get_purchase_note() : '',
                        'product'            => $product,
                    )
                );
            }

            do_action( 'woocommerce_order_details_after_order_table_items', $order );
            ?>
        </tbody>

        <tfoot>
            <?php
            foreach ( $order->get_order_item_totals() as $key => $total ) {
                ?>
                    <tr>
                        <th scope="row"><?php echo esc_html( $total['label'] ); ?></th>
                        <td><?php echo ( 'payment_method' === $key ) ? esc_html( $total['value'] ) : wp_kses_post( $total['value'] ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></td>
                    </tr>
                    <?php
            }
// **** Inserted Lines - Coupon Start ****

            if( $order->get_coupon_codes() ) {
            foreach( $order->get_coupon_codes() as $code) {
                // Pick up the object of each coupon
                $coupon = new WC_Coupon($code);
                 ?>
        <tr>
            <th>Cupom</th>
            <!-- Print the Coupon Code -->
            <td><?php echo $coupon->code; ?></td>
        </tr>
        <tr>
            <th>Coupon Expiration Date</th>
            <!-- Print Coupon Expiration Date -->
            <td><?php print_r($coupon->get_date_expires()->date('d-m-Y')); ?></td>
        </tr>
           <?php  } 
            }

// **** Inserted Lines - Coupon End ****
             if ( $order->get_customer_note() ) : ?>
                <tr>
                    <th><?php esc_html_e( 'Note:', 'woocommerce' ); ?></th>
                    <td><?php echo wp_kses_post( nl2br( wptexturize( $order->get_customer_note() ) ) ); ?></td>
                </tr>
            <?php endif; ?>
        </tfoot>
    </table>

    <?php do_action( 'woocommerce_order_details_after_order_table', $order ); ?>
</section>

<?php
/**
 * Action hook fired after the order details.
 *
 * @since 4.4.0
 * @param WC_Order $order Order data.
 */
do_action( 'woocommerce_after_order_details', $order );

if ( $show_customer_details ) {
    wc_get_template( 'order/order-details-customer.php', array( 'order' => $order ) );
}

只是要看的优惠券脚本::

// **** Inserted Lines - Coupon Start ****

            if( $order->get_coupon_codes() ) {
            foreach( $order->get_coupon_codes() as $code) {
                // Pick up the object of each coupon
                $coupon = new WC_Coupon($code);
                 ?>
        <tr>
            <th>Coupon</th>
            <!-- Print the Coupon Code -->
            <td><?php echo $coupon->code; ?></td>
        </tr>
        <tr>
            <th>Coupon Expiration Date</th>
            <!-- Print Coupon Expiration Date -->
            <td><?php print_r($coupon->get_date_expires()->date('d-m-Y')); ?></td>
        </tr>
           <?php  } 
            }

// **** Inserted Lines - Coupon End ****

4° 我应该在 functions.php 文件中使用什么过滤器来生成相同的结果（没有触发错误消息）以及它应该是什么样子？

Answer 1

从 WooCommerce 3 开始，您需要使用 WC_coupon method get_code() 而不是直接尝试访问优惠券“代码”属性，因此您必须在代码中替换：

            <!-- Print the Coupon Code -->
            <td><?php echo $coupon->code; ?></td>

只需

            <!-- Print the Coupon Code -->
            <td><?php echo $coupon->get_code(); ?></td>

这将解决这个问题。

您可以使用 woocommerce_get_order_item_totals 过滤器挂钩，而不是覆盖 order-details.php 模板，来添加一些自定义行来对显示的总行进行排序。

见those examples using woocommerce_get_order_item_totals filter hook。

WooCommerce error: Coupon properties should not be accessed directly

WooCommerce error: Coupon properties should not be accessed directly

php

wordpress

templates

coupon

woocommerce