在Woocommerce中为订单添加额外的元数据 [英] Add extra meta for orders in Woocommerce

问题描述

我正在为我的网站创建自定义插件.

I'm creating a custom plugin for my website.

在此插件的某些部分中，我需要为每个订单将额外的meta存储在wp_postmeta中.

In some part of this plugin I need to store extra meta in wp_postmeta for each orders.

我在插件的类中添加了它:

I added this in my plugin's class:

`add_action ('woocommerce_before_checkout_process', array( &$this, 'add_item_meta', 10, 2) );`

这是add_item_meta()函数:

    function add_item_meta( $item_id, $values ) {
            wc_add_order_item_meta($item_id, '_has_event', 'yes' );
        }

此功能尚未完成，但是此代码没有任何反应；我想我需要使用另一个钩子，但是找不到合适的钩子.

This function is not complete, but nothing happens with this codes; I think I need to use another hook but I can't find a proper one.

有人知道吗?

$item_id还有另一个问题:这是woocommerce全局变量，但在插件中看不到它！

I also have another problem with $item_id: this is woocommerce global variable but I can't see it in my plugin!

我的意思是我无法从我的插件或类似的东西访问此变量！

I mean I don't have access to this variable from my plugin or something like this!

推荐答案

2018年方式:

基于 Guido W.P.答案，您可以改用 woocommerce_checkout_create_order 动作挂钩 更轻便有效的版本代码(使用 WC 3+ CRUD方法):

Built on Guido W.P. answer you can use instead woocommerce_checkout_create_order action hook in a more lighter and effective version code (using WC 3+ CRUD methods):

add_action('woocommerce_checkout_create_order', 'before_checkout_create_order', 20, 2);
function before_checkout_create_order( $order, $data ) {
    $order->update_meta_data( '_custom_meta_key', 'value' );
}

代码进入您的活动子主题(或活动主题)的function.php文件中.

Code goes in function.php file of your active child theme (or active theme).

经过测试并可以在WooCommerce 3+ (仅)中使用.

Tested and works in WooCommerce 3+ (only).

某些说明:

woocommerce_checkout_create_order 操作挂钩仅是保存订单数据之前的一步.参见下面的WC_Checkout create_order()方法的提取(带有两个钩子):

The woocommerce_checkout_create_order action hook is just one step before saving the order data. See below in an extract of the WC_Checkout create_order() method (with both hooks):

/**
 * Action hook to adjust order before save.
 * @since 3.0.0
 */
do_action( 'woocommerce_checkout_create_order', $order, $data );

// Save the order.
$order_id = $order->save();

do_action( 'woocommerce_checkout_update_order_meta', $order_id, $data );

return $order_id;

为什么改用woocommerce_checkout_create_order?:

Why using woocommerce_checkout_create_order instead?:

• 因为您不需要使用$order = wc_get_order( $order_id );，因为您已经在挂钩函数中将 $order 作为参数.
• 您不需要使用$order->save();，因为无论如何(请参见源代码)
• woocommerce_checkout_create_order也已在WooCommerce版本3中发布，并且也为此提供了帮助.

• Because You don't need to use $order = wc_get_order( $order_id ); as you already got $order as an argument in the hooked function.
• You don't need to use $order->save(); as this will be done just after anyway (see the source code)
• Also woocommerce_checkout_create_order has been released in WooCommerce version 3 and it's maid for that too.

因此，此功能仅在函数内部使用单行代码即可.

这篇关于在Woocommerce中为订单添加额外的元数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！