如何检索使用特定优惠券的 WooCommerce 订单列表?

How to retrieve a list of WooCommerce orders which use a particular coupon?

我正在尝试编写一个函数来检索使用指定优惠券代码且在指定日期范围内的 WooCommerce 订单列表,然后将应用于这些订单的总折扣相加。

经过一些谷歌搜索后,我觉得我应该使用类似

的东西
$customer_orders = get_posts( array(
    'numberposts' => -1,
    'meta_key'    => ???,
    'meta_value'  => $CouponToSearchFor,
    'post_type'   => wc_get_order_types(),
    'post_status' => array_keys( wc_get_order_statuses() ),
) ); 

我试过:

'meta_key' => 'coupon'
'meta_key' => 'shop_coupon'
'meta_key' => '_coupon'

但其中 none 有效。我怎样才能找出哪些 meta_key/meta_value 项可以满足我的需求?

此外,我认为 meta_query 可用于执行此 get_posts() 查询的一部分的日期过滤,对吗?

Your code is not working because by default WooCommerce does't store used coupon code in wp_postmeta table. It stores in wp_woocommerce_order_items table, under order_item_type => coupon and order_item_name => YOUR_CODE.

您必须首先获取所有订单 ID,然后您必须对其进行循环以获得所需的总额、税金或折扣。

代码如下:

function wh_getOrderbyCouponCode($coupon_code, $start_date, $end_date) {
    global $wpdb;
    $return_array = [];
    $total_discount = 0;

    $query = "SELECT
        p.ID AS order_id
        FROM
        {$wpdb->prefix}posts AS p
        INNER JOIN {$wpdb->prefix}woocommerce_order_items AS woi ON p.ID = woi.order_id
        WHERE
        p.post_type = 'shop_order' AND
        p.post_status IN ('" . implode("','", array_keys(wc_get_order_statuses())) . "') AND
        woi.order_item_type = 'coupon' AND
        woi.order_item_name = '" . $coupon_code . "' AND
        DATE(p.post_date) BETWEEN '" . $start_date . "' AND '" . $end_date . "';";

    $orders = $wpdb->get_results($query);

    if (!empty($orders)) {
        $dp = ( isset($filter['dp']) ? intval($filter['dp']) : 2 );
        //looping throught all the order_id
        foreach ($orders as $key => $order) {
            $order_id = $order->order_id;
            //getting order object
            $objOrder = wc_get_order($order_id);

            $return_array[$key]['order_id'] = $order_id;
            $return_array[$key]['total'] = wc_format_decimal($objOrder->get_total(), $dp);
            $return_array[$key]['total_discount'] = wc_format_decimal($objOrder->get_total_discount(), $dp);
            $total_discount += $return_array[$key]['total_discount'];
        }
//        echo '<pre>';
//        print_r($return_array);
    }
    $return_array['full_discount'] = $total_discount;
    return $return_array;
}

代码进入您的活动子主题(或主题)的 function.php 文件。或者在任何插件 php 文件中。

用法

$orders = wh_getOrderbyCouponCode('my_code', '2016-09-17', '2016-10-07');
echo 'Total Discount : ' . $orders['full_discount'];
//print_r($orders);

请注意:

所有日期均采用 YYYY-MM-DD 格式。
print_r(array_keys(wc_get_order_statuses())); 将输出如下内容:

Array
(
    [0] => wc-pending
    [1] => wc-processing
    [4] => wc-on-hold
    [5] => wc-completed
    [6] => wc-cancelled
    [7] => wc-refunded
    [8] => wc-failed
)

代码已经过测试并且有效。

希望对您有所帮助!