将WooCommerce购物车项目自定义数据保存为订单项目元数据，显示在订单和电子邮件上

Question

关于WooCommerce。我有我要添加到购物车的自定义数据。在functions.php文件中，我有以下功能。

// Display cart item custom data in cart and checkout pages
add_filter( 'woocommerce_get_item_data', 'display_cart_item_custom_on_cart_and_checkout', 10, 2 );
function display_cart_item_custom_on_cart_and_checkout( $cart_item_data, $cart_item ){
    
    if( isset($cart_item['custom_data']['label0']) && isset($cart_item['custom_data']['value0']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label0'],
            'value' => $cart_item['custom_data']['value0'],
        );
    }
    
    if( isset($cart_item['custom_data']['label']) && isset($cart_item['custom_data']['value']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label'],
            'value' => $cart_item['custom_data']['value'],
        );
    }

    if( isset($cart_item['custom_data']['label2']) && isset($cart_item['custom_data']['value2']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label2'],
            'value' => $cart_item['custom_data']['value2'],
        );
    }
    
    if( isset($cart_item['custom_data']['label3']) && isset($cart_item['custom_data']['value3']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label3'],
            'value' => $cart_item['custom_data']['value3'],
        );
    }
    
    if( isset($cart_item['custom_data']['label4']) && isset($cart_item['custom_data']['value4']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label4'],
            'value' => $cart_item['custom_data']['value4'],
        );
    }
    
    if( isset($cart_item['custom_data']['label5']) && isset($cart_item['custom_data']['value5']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label5'],
            'value' => $cart_item['custom_data']['value5'],
        );
    }
    
    if( isset($cart_item['custom_data']['label6']) && isset($cart_item['custom_data']['value6']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label6'],
            'value' => $cart_item['custom_data']['value6'],
        );
    }
    
    if( isset($cart_item['custom_data']['label7']) && isset($cart_item['custom_data']['value7']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label7'],
            'value' => $cart_item['custom_data']['value7'],
        );
    }
    
    if( isset($cart_item['custom_data']['label8']) && isset($cart_item['custom_data']['value8']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label8'],
            'value' => $cart_item['custom_data']['value8'],
        );
    }
    
    if( isset($cart_item['custom_data']['label9']) && isset($cart_item['custom_data']['value9']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label9'],
            'value' => $cart_item['custom_data']['value9'],
        );
    }
    
    if( isset($cart_item['custom_data']['label10']) && isset($cart_item['custom_data']['value10']) ) {
        $cart_item_data[] = array(
            'name' => $cart_item['custom_data']['label10'],
            'value' => $cart_item['custom_data']['value10'],
        );
    }
    return $cart_item_data;
}

这是可行的，自定义数据显示在购物车中。但是，定制数据不会显示在订单和订单电子邮件上。我在Stackoverflow上看到了一些解决这个问题的答案，但我无法让它们适用于我的情况。我提到的解决方案是。

在Woocommerce中保存和显示订单项自定义元数据

显示和保存添加的自定义购物车项目数据在WooCommerce购物车，结账和订单

有人能告诉我“我的”功能应该是什么吗？

非常感谢。

Answer 1

首先，您可以通过以下方式优化和压缩函数：

// Display cart item custom data in cart and checkout pages
add_filter( 'woocommerce_get_item_data', 'display_cart_item_custom_on_cart_and_checkout', 10, 2 );
function display_cart_item_custom_on_cart_and_checkout( $cart_item_data, $cart_item ){
    $keys = array('0','','2','3','4','5','6','7','8','9','10'); // Fields numbers part keys array
    
    // Loop through Fields numbers part keys array
    foreach( $keys as $key ) {
        if( isset($cart_item['custom_data']['label'.$key]) && isset($cart_item['custom_data']['value'.$key]) ) {
            $cart_item_data[] = array(
                'name' => $cart_item['custom_data']['label'.$key],
                'value' => $cart_item['custom_data']['value'.$key],
            );
        }
    }
    return $cart_item_data;
}

然后，要将所有自定义购物车项目数据保存为自定义订单项目元数据，并将其显示在订单和电子邮件的任何地方，请使用以下方法：

// Save cart item custom data as order item meta data and display it everywhere in Orders and email notifications
add_action('woocommerce_checkout_create_order_line_item', 'save_as_custom_order_item_meta_data', 10, 4 );
function save_as_custom_order_item_meta_data( $item, $cart_item_key, $values, $order ) {
    $keys = array('0','','2','3','4','5','6','7','8','9','10'); // Fields numbers part keys array()
    
    // Loop through Fields numbers part keys array
    foreach( $keys as $key ) {
        if( isset( $values['custom_data']['label'.$key] ) && isset( $values['custom_data']['value'.$key] ) ) {
           $item->update_meta_data( $values['custom_data']['label'.$key], $values['custom_data']['value'.$key] );
        }
    }
}

代码functions.php活动子主题（或活动主题）的文件中。它应该工作。