我迅速浏览了Stack Overflow上的其他五篇文章，试图修改正确答案的代码。Some of them looked promising，但它们都没有产生预期的结果。因此，我决定从头开始。
我的目标是：

• 在WooCommerce订单页面上添加列。
• 访问mywebsite.com/wp-admin/edit.php?post_type=shop_order并查看日期栏
• 在该列中包括预订开始日期和预订结束日期。
• • 每笔订单只有一次预订 *

以下是我迄今为止开发的将列添加到订单页面的代码：

// Add custom column to WooCommerce admin orders page
function custom_add_booking_dates_column($columns) {
    // Add the custom column after the "Order Actions" column
    $columns['booking_dates'] = __('Booking Dates', 'text-domain');
    return $columns;
}
add_filter('manage_edit-shop_order_columns', 'custom_add_booking_dates_column');

// Populate the custom column with "Testing" text
function custom_populate_booking_dates_column($column) {
    global $post;
    
    if ($column === 'booking_dates') {
        // Output the text you want to display in the custom column
        echo 'Testing';
    }
}
add_action('manage_shop_order_posts_custom_column', 'custom_populate_booking_dates_column');

我尝试过的事情：

• 编辑wp-config并增加内存
• 打开调试以解决问题（出现wc_booking_order_has_bookings错误）
• 在子主题功能中加载WooCommerce和WooCommerce预订
• 从插件复制一些文件到子主题并编辑/woocommerce-bookings/order/admin/booking-display.php和booking-summary-list.php文件

我还尝试了所有的代码例子，我发现在SO和GPT分析和编写一个函数，但一切都产生了太，是不好的。

// Add custom column to WooCommerce admin orders page
function custom_add_booking_dates_column($columns) {
    // Add the custom column after the 'order_actions' column
    $columns['booking_dates'] = __('Booking Dates', 'text-domain');
    return $columns;
}
add_filter('manage_edit-shop_order_columns', 'custom_add_booking_dates_column');

// Populate the custom column with data
function custom_booking_dates_column_content($column, $post_id) {
    if ($column == 'booking_dates') {
        // Retrieve booking dates for the order (replace this with your own logic)
        $booking_dates = get_post_meta($post_id, '_booking_dates', true);

        // Display the booking dates
        echo esc_html($booking_dates);
    }
}
add_action('manage_shop_order_posts_custom_column', 'custom_booking_dates_column_content', 10, 2);


add_action('after_setup_theme', 'child_theme_setup');

function child_theme_setup() {
    // Load WooCommerce
    add_theme_support('woocommerce');
    
    // Load WooCommerce Bookings
    add_theme_support('woocommerce-bookings');
}


// Add custom column to WooCommerce admin orders page
function add_custom_column_to_orders_page($columns) {
    // Add a new column called "Booking Dates" after the "Order Total" column
    $columns['booking_dates'] = __('Booking Dates', 'text-domain');
    return $columns;
}
add_filter('manage_edit-shop_order_columns', 'add_custom_column_to_orders_page', 20);

// Populate custom column with Booking Start and Booking End dates
function populate_custom_column_content($column) {
    global $post, $the_order;

    if ($column === 'booking_dates') {
        $order_id = $post->ID;

        // Check if the order has booking data
        if (wc_booking_order_has_bookings($order_id)) {
            $booking_data = wc_get_order($order_id)->get_items('booking');
            
            // Loop through each booking item (there may be multiple bookings in one order)
            foreach ($booking_data as $item_id => $booking_item) {
                $booking_start = date_i18n(wc_date_format(), strtotime($booking_item['Start']));
                $booking_end = date_i18n(wc_date_format(), strtotime($booking_item['End']));

                // Display Booking Start and End dates for each booking
                echo '<strong>' . __('Booking #', 'text-domain') . $booking_item['Booking ID'] . '</strong><br>';
                echo __('Start Date:', 'text-domain') . ' ' . esc_html($booking_start) . '<br>';
                echo __('End Date:', 'text-domain') . ' ' . esc_html($booking_end) . '<br>';
            }
        } else {
            echo __('No booking data', 'text-domain');
        }
    }
}
add_action('manage_shop_order_posts_custom_column', 'populate_custom_column_content');