Woocommerce 循环中每个订单项的总数

Question

嗨，我正在同时学习 PHP 和 Woocommerce！我正在尝试获取所有具有处理状态的订单和每个订单的总数，并将其显示在页面上。

到目前为止，我可以遍历所有订单并获取每个订单的名称和数量。

但由于我不知道哪个产品会出现在列表中，所以我不确定如何比较名称然后添加数量。

我目前的输出是这样的：

prod1 - v1 x 1
Prod2 - v3 x 1
prod2 - v3 x 1
prod3 - v2 x 11
prod3 - v2 x 1

我想要的是：

prod1 - v1 x 1
Prod2 - v3 x 2
prod3 - v2 x 12

目前的代码是：

    <?php
/*
Template Name: Print Supplier Order
*/
if (!is_user_logged_in() || !current_user_can('manage_options')) wp_die('This page is private.');
?>
<!DOCTYPE HTML>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title><?php _e('Processing Orders'); ?></title>
    <style>
        body { background:white; color:black; width: 95%; margin: 0 auto; }
    </style>
</head>
<body>
    <header>
        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>

            <h1 class="title"><?php the_title(); ?></h1>

            <?php the_content(); ?>

        <?php endwhile; endif; ?>
    </header>
    <section>
    <?php 

    global $woocommerce;

$args = array( 'post_type' => 'shop_order', 'post_status' => 'wc-processing', 'posts_per_page' => -1 );


    $loop = new WP_Query( $args );

    while ( $loop->have_posts() ) : $loop->the_post();

        $order_id = $loop->post->ID;

        $order = new WC_Order($order_id);

        $product_details = array();
        $order_items = $order->get_items();
        foreach( $order_items as $product ) {
                echo $product['name']." x ".$product['qty'];
                echo '<br>';

            }
        ?>
    <?php endwhile; ?>
    </section>
</body>
</html>

Answer 1

方法一

有几种不同的方法可以解决这个问题，但如果我们只想稍微调整您的代码，那么我们可以通过将产品循环中的产品添加到自定义数组来实现，使用产品名称作为一个键，然后遍历该数组。

这是一个例子：

global $woocommerce;

//custom array to list products:
$products_array = array();

//start wp query
$args = array( 
    'post_type'     => 'shop_order', 
    'post_status'   => 'wc-processing', 
    'posts_per_page'=> -1 
);
$loop = new WP_Query( $args );

//loop through orders
while ( $loop->have_posts() ) {
    $loop->the_post();

    //vars
    $order_id           = $loop->post->ID;
    $order              = new WC_Order($order_id);
    $product_details    = array();
    $order_items        = $order->get_items();

    //loop through products
    foreach( $order_items as $product ) {
        //if product has been captured to custom array before, increment value, else add it.
        if (array_key_exists($product['name'], $products_array)) {
            $products_array[$product['name']] += $product['qty'];
        } else {
            $products_array[$product['name']] = $product['qty'];
        }

    }
}

//end wp_query
wp_reset_postdata();

//display list:
foreach ($products_array as $title => $quantity) {
    echo $title.' x '.$quantity;
}

方法二

遍历所有产品，而不是所有订单（一段时间后，假设商店成功，订单可能会比产品多很多，所以这种方法可能会更快运行).每个产品都将其总销售额存储为元值，因此访问它非常简单：

//WP Query args
$args = array(
    'post_type'     => 'product',
    'posts_per_page'=> -1,
    'meta_key'      => 'total_sales',
    'orderby'       => 'title',
    'order'         => 'ASC',
    'meta_query'    => array( //make sure we only grab items that have actually sold
        array(
            'key'       => 'total_sales',
            'value'     => 0,
            'compare'   => '>'
        )
    )
);
$query = new WP_Query($args);

//loop through products
if($query->have_posts()) {
    while($query->have_posts()) {
        $query->the_post();
        //use built in Wordpress functions for get_the_title() and get_post_meta()
        echo get_the_title().' x '.get_post_meta(get_the_ID(), 'total_sales', true);
    }
}

//end wp query
wp_reset_postdata();

Answer 2

Updated (Now the SQL query gives also the product name, make it even lighter)

与其使用 WP_Query 和一些繁重的代码来进行计算，不如使用 更轻便和有效的版本代码 ，使用 WPDB Class（SQL 查询）：

global $wpdb;

$results = $wpdb->get_results( "
    SELECT DISTINCT woim2.meta_value as id, SUM(woim.meta_value) as count, woi.order_item_name as name
    FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim
    INNER JOIN {$wpdb->prefix}woocommerce_order_items as woi ON woi.order_item_id = woim.order_item_id
    INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta as woim2 ON woi.order_item_id = woim2.order_item_id
    INNER JOIN {$wpdb->prefix}posts as p ON p.ID = woi.order_id
    WHERE p.post_status IN ('wc-processing','wc-on-hold')
    AND woim.meta_key LIKE '_qty'
    AND woim2.meta_key LIKE '_product_id'
    GROUP BY woim2.meta_value
" );

foreach( $results as $result ){
    echo $result->name . ' (' . $result->id . ') x ' . $result->count . '<br>';
}

产品数量将仅基于处理订单状态而不是产品总销售额。

经过测试并可以正常工作。

改为获取产品变体 （如评论中所述）

如评论中要求获取订单中的产品变体，您将替换行：

 AND woim2.meta_key LIKE '_product_id'

通过以下行：

 AND woim2.meta_key LIKE '_variation_id'

获取所有产品和变体（可变产品除外）

要获取包括产品变体但不包括可变产品的所有产品，请使用：

global $wpdb;

$results = $wpdb->get_results( "
    SELECT DISTINCT woim2.meta_value as id, SUM(woim.meta_value) as count, woi.order_item_name as name
    FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim
    INNER JOIN {$wpdb->prefix}woocommerce_order_items as woi ON woi.order_item_id = woim.order_item_id
    INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta as woim2 ON woi.order_item_id = woim2.order_item_id
    INNER JOIN {$wpdb->prefix}posts as p ON p.ID = woi.order_id
    WHERE p.post_status IN ('wc-processing','wc-on-hold') 
    AND woim.meta_key LIKE '_qty'
    AND ((woim2.meta_key LIKE '_variation_id' AND woim2.meta_value > 0)
    OR (woim2.meta_key LIKE '_product_id'
    AND woim2.meta_value NOT IN (SELECT DISTINCT post_parent FROM {$wpdb->prefix}posts WHERE post_type LIKE 'product_variation')))
    GROUP BY woim2.meta_value
" );

foreach( $results as $result ){
    echo $result->name . ' (' . $result->id . ') x ' . $result->count . '<br>';
}

经过测试并可以正常工作。

全部获取（甚至产品变体和可变产品）:

global $wpdb;

$results = $wpdb->get_results( "
    SELECT DISTINCT woim2.meta_value as id, SUM(woim.meta_value) as count, woi.order_item_name as name
    FROM {$wpdb->prefix}woocommerce_order_itemmeta as woim
    INNER JOIN {$wpdb->prefix}woocommerce_order_items as woi ON woi.order_item_id = woim.order_item_id
    INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta as woim2 ON woi.order_item_id = woim2.order_item_id
    INNER JOIN {$wpdb->prefix}posts as p ON p.ID = woi.order_id
    WHERE p.post_status IN ('wc-processing','wc-on-hold')
    AND woim.meta_key LIKE '_qty'
    AND ((woim2.meta_key LIKE '_variation_id' AND woim2.meta_value > 0)
    OR woim2.meta_key LIKE '_product_id' )
    GROUP BY woim2.meta_value
" );

foreach( $results as $result ){
    echo $result->name . ' (' . $result->id . ') x ' . $result->count . '<br>';
}

经过测试并可以正常工作。

Woocommerce 循环中每个订单项的总数

Total count for each order item in a loop on Woocommerce

php

sql

wordpress

orders

woocommerce

方法一

方法二