在Woocommerce中为订单添加额外的元数据

I'm creating a custom plugin for my website.

我正在为我的网站创建一个自定义插件。

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

在这个插件的某些部分,我需要在每个订单的wp_postmeta中存储额外的元数据。

I added this in my plugin's class:

我在我的插件类中添加了这个:

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

And this is add_item_meta() function:

这是add_item_meta()函数:

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

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.

此功能不完整,但此代码没有任何反应;我想我需要使用另一个钩子,但我找不到合适的钩子。

Does anyone know anything about this?

有人对这个有了解吗?

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

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

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

我的意思是我无法从我的插件或类似的东西访问这个变量!

4 个解决方案

#1

The 2018 way:

2018年的方式:

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):

建立在Guido W.P.回答你可以使用更轻,更有效的版本代码中的woocommerce_checkout_create_order动作钩子(使用WC 3+ CRUD方法):

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' );
}

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

代码位于活动子主题(或活动主题)的function.php文件中。

Tested and works in WooCommerce 3+ (only).

经测试并适用于WooCommerce 3+(仅限)。

SOME EXPLANATIONS:

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):

woocommerce_checkout_create_order操作挂钩只是保存订单数据之前的一步。请参阅下面WC_Checkout create_order()方法的摘录(包含两个钩子):

/**
 * 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;

Why using woocommerce_checkout_create_order instead?:

为什么要使用woocommerce_checkout_create_order?:

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.

因为您不需要使用$ order = wc_get_order($ order_id);因为你已经将$ order作为钩子函数中的参数。

You don't need to use $order->save(); as this will be done just after anyway (see the source code)

您不需要使用$ order-> save();因为这将在完成之后完成(参见源代码)

Also woocommerce_checkout_create_order has been released in WooCommerce version 3 and it's maid for that too.

此外,woocommerce_checkout_create_order已经在WooCommerce版本3中发布,它也是佣人。

So this just works with a single line of code inside the function.

所以这只是在函数内部使用一行代码。

#2

Building on Mo Saeedi answer, I believe this snippet is more in line with the new CRUD approach introduced by WooCommerce 3.0:

基于Mo Saeedi回答,我相信这个片段更符合WooCommerce 3.0引入的新CRUD方法:

add_action('woocommerce_checkout_update_order_meta',function( $order_id, $posted ) {
    $order = wc_get_order( $order_id );
    $order->update_meta_data( 'my_custom_meta_key', 'my data' );
    $order->save();
} , 10, 2);

See also this threads on the WordPress forums:

另请参阅WordPress论坛上的这些主题:

Oh CRUD! Custom Meta to order from cart

哦CRUD!自定义Meta从购物车订购

What is the correct way to update meta fields in Woocommerce?

在Woocommerce中更新元字段的正确方法是什么?

#3

answer is: I should use woocommerce_checkout_update_order_meta for add_action and also i should simply use update_post_meta() to add extra meta to my order

答案是:我应该使用woocommerce_checkout_update_order_meta进行add_action,我也应该使用update_post_meta()为我的订单添加额外的元数据

    function add_item_meta( $order_id ) {
            //global $woocommerce;
            update_post_meta( $order_id, '_has_event', 'yes' );
        }

#4

The 2016 way:

2016年方式:

add_action('woocommerce_checkout_update_order_meta',function( $order_id, $posted ) {  
    update_post_meta( $order_id, 'my_custom_meta_key', 'my data' );  
} , 10, 2);

$order_id is the id of the order, which is stored as a custom post type

$ order_id是订单的ID,存储为自定义帖子类型

$posted is all the data from $_POST

$ posted是来自$ _POST的所有数据

#1