在 Woocommerce 中删除重复的导入订单

Question

我在 Woocommerce 中有重复的订单，我想删除它们以仅保留唯一性以进行干净的簿记。

我不擅长SQL，我写了这个请求，但是当有重复的时候它列出了两个重复的。

SELECT *
FROM `wp_posts` 
WHERE post_type = 'shop_order' AND post_status = 'wc-completed' 
GROUP BY post_date 
HAVING count(*) > 1 
ORDER BY `wp_posts`.`post_date` DESC

这给了我 307 个结果。

如何编写正确的请求来删除重复项并只保留唯一订单？

示例数据：

ID  post_author post_date       post_date_gmt   post_content    post_title  post_excerpt    post_status comment_status  ping_status post_password   post_name   to_ping pinged  post_modified   post_modified_gmt   post_content_filtered   post_parent guid    menu_order  post_type   post_mime_type  comment_count   
22282   227 2018-02-04 01:00:00 2018-02-04 00:00:00     Order &ndash; February 4, 2018 @ 01:00 AM       wc-completed    open    closed      order-4-02-18-6         2018-03-19 17:12:32 2018-03-19 16:12:32     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      2   
22277   0   2018-01-29 01:00:00 2018-01-29 00:00:00     Order &ndash; January 29, 2018 @ 01:00 AM       wc-completed    open    closed      order-29-01-18-2            2018-03-19 17:12:33 2018-03-19 16:12:33     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      2   
22276   0   2018-01-28 01:00:00 2018-01-28 00:00:00     Order &ndash; January 28, 2018 @ 01:00 AM       wc-completed    open    closed      order-28-01-18-2            2018-03-19 17:12:33 2018-03-19 16:12:33     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      2   
22275   0   2018-01-25 01:00:00 2018-01-25 00:00:00     Order &ndash; January 25, 2018 @ 01:00 AM       wc-completed    open    closed      order-25-01-18-2            2018-03-19 17:12:33 2018-03-19 16:12:33     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      2   
22232   154 2018-01-24 00:00:00 2018-01-24 00:00:00     Order &ndash; January 24, 2018 @ 12:00 AM       wc-completed    open    closed      order-24-01-18-4            2018-01-24 00:00:00 2018-01-24 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22230   213 2018-01-23 00:00:00 2018-01-23 00:00:00     Order &ndash; January 23, 2018 @ 12:00 AM       wc-completed    open    closed      order-23-01-18-2            2018-01-23 00:00:00 2018-01-23 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22229   0   2018-01-22 00:00:00 2018-01-22 00:00:00     Order &ndash; January 22, 2018 @ 12:00 AM       wc-completed    open    closed      order-22-01-18-2            2018-01-22 00:00:00 2018-01-22 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22228   224 2018-01-20 00:00:00 2018-01-20 00:00:00     Order &ndash; January 20, 2018 @ 12:00 AM       wc-completed    open    closed      order-20-01-18-2            2018-01-20 00:00:00 2018-01-20 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22227   0   2018-01-19 00:00:00 2018-01-19 00:00:00     Order &ndash; January 19, 2018 @ 12:00 AM       wc-completed    open    closed      order-19-01-18-2            2018-01-19 00:00:00 2018-01-19 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22226   0   2018-01-17 00:00:00 2018-01-17 00:00:00     Order &ndash; January 17, 2018 @ 12:00 AM       wc-completed    open    closed      order-17-01-18-2            2018-01-17 00:00:00 2018-01-17 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22225   0   2018-01-16 00:00:00 2018-01-16 00:00:00     Order &ndash; January 16, 2018 @ 12:00 AM       wc-completed    open    closed      order-16-01-18-2            2018-01-16 00:00:00 2018-01-16 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22224   0   2018-01-15 00:00:00 2018-01-15 00:00:00     Order &ndash; January 15, 2018 @ 12:00 AM       wc-completed    open    closed      order-15-01-18-4            2018-01-15 00:00:00 2018-01-15 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0   
22222   0   2018-01-14 00:00:00 2018-01-14 00:00:00     Order &ndash; January 14, 2018 @ 12:00 AM       wc-completed    open    closed      order-14-01-18-6            2018-01-14 00:00:00 2018-01-14 00:00:00     0   https://www.hemen-biarritz.com/?post_type=shop_ord...   0   shop_order      0

编辑：

SELECT DISTINCT post_date FROM `wp_posts` WHERE post_type = 'shop_order' AND post_status = 'wc-completed'

给我 614 个结果，是之前请求的两倍。

WordPress：5.0
Woocommerce：3.5.2

Answer 1

尝试删除连接，任意保留最大 ID:

的记录

DELETE
FROM wp_posts
WHERE post_type = 'shop_order' AND post_status = 'wc-completed' AND
      ID NOT IN (SELECT ID
                 FROM (SELECT MAX(ID) AS ID FROM wp_posts
                       GROUP BY post_date, post_author) t);

如果您只想查看删除了逻辑重复项的帖子，请尝试：

SELECT w1.*
FROM wp_posts w1
INNER JOIN
(
    SELECT post_date, post_author, MAX(ID) AS max_id
    FROM wp_posts
    WHERE post_type = 'shop_order' AND post_status = 'wc-completed'
    GROUP BY post_date, post_author
) w2
    ON w1.post_date = w2.post_date AND
       w1.post_author = w2.post_author AND
       w1.ID = w2.max_id
WHERE w1.post_type = 'shop_order' AND w1.post_status = 'wc-completed'

Answer 2

首先，如果您不知道，woocommerce 订单数据位于四 (4) 个表中：

wp_posts
wp_postmeta
wp_woocommerce_order_items
wp_woocommerce_order_itemmeta

所以下面的钩子函数使用了WPDBclass和方法。它将：

在一次查询中获取所有重复的订单 ID （最低 ID）（搜索通常唯一的重复订单键）
在一次查询中删除所有重复查询的订单。

但一定要在之前做好数据库备份。

代码将在任何 前端页面加载时一次性完成工作 （使用后删除）:

add_action( 'template_redirect', 'progressive_delete_duplicated_orders' );
function progressive_delete_duplicated_orders() {
    global $wpdb;

    // Get duplicated orders (smaller ID)
    $duplicated_orders = (array) $wpdb->get_col("
        SELECT p.ID, pm.meta_value, COUNT(*) as c
        FROM {$wpdb->prefix}postmeta as pm
        INNER JOIN {$wpdb->prefix}posts as p ON p.ID = pm.post_id
        WHERE p.post_status = 'wc-completed'
        AND pm.meta_key = '_order_key'
        GROUP BY pm.meta_value
        HAVING c > 1
    ");

    if( sizeof($duplicated_orders) == 1 )
        $where_clause = 'WHERE p.ID = ' . reset($duplicated_orders);
    elseif( sizeof($duplicated_orders) > 1 )
        $where_clause = 'WHERE p.ID IN (' . implode( ',',$duplicated_orders ) . ')';
    else return; // Exit

    // Delete duplicated Orders data everywhere
    $wpdb->query("
        DELETE p, pm, woi, woim
        FROM {$wpdb->prefix}posts as p
        INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id
        INNER JOIN {$wpdb->prefix}woocommerce_order_items as woi ON p.ID = woi.order_id
        INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta AS woim ON woi.order_item_id = woim.order_item_id
        $where_clause
    ");
}

代码进入您的活动子主题（或活动主题）的 function.php 文件。测试和工作。

The duplicated orders will be removed on first frontend page load. So after that you can remove or comment the code.

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