如何通过 sku 直接更新 WooCommerce 产品库存数量

Question

A 有大量可变产品。我每 X 分钟使用一次 cron 运行从外部源获取库存水平的脚本。如果我使用 wc_get_product_id_by_sku 和 update_post_meta 它会花费太长时间，所以我试图找到使用自定义准备查询的方法。如果我知道 product_id 查询会是这样的：

$conn->prepare( "UPDATE wp_postmeta SET meta_value=? WHERE post_id=? AND meta_key=`_stock`" );

但我只知道一个产品SKU。那么如何修改此查询以根据产品 SKU 更新 _stock？

post_id	meta_key	meta_value
10	_sku	ABCD
10	_stock	25

Answer 1

您首先需要 post id 然后您可以更新股票价值。先通过sku

得到postid

global $wpdb;
$productId = $wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key='_sku' AND meta_value='%s' LIMIT 1", $sku ) );

我们将获得产品 ID，然后猜测 $productValue = 50;然后

if ( $product_id )
{
$wpdb->prepare( "UPDATE wp_postmeta SET meta_value=".$productValue." WHERE post_id=".$productId." AND meta_key=`_stock`" );
}

亲爱的试试这个代码它会工作

Answer 2

您可以使用嵌入在函数中的以下 SQL 查询，该函数将根据产品 SKU 更新产品库存数量（table wp_wc_product_meta_lookup 也需要待更新):

/*
 * Update stock quatity from a product sku
 *
 * @param int $stock_qty The new stock quatity
 * @param int $sku The product sku
 * @return int/null
 */
function update_stock_qty_from_product_sku( $stock_qty, $sku ) {
    global $wpdb;

    return $wpdb->query( $wpdb->prepare( "
        UPDATE {$wpdb->prefix}postmeta pm1
        INNER JOIN {$wpdb->prefix}postmeta pm2
            ON pm1.post_id =  pm2.post_id
        INNER JOIN {$wpdb->prefix}wc_product_meta_lookup pml
            ON pm1.post_id =  pml.product_id
        SET pm1.meta_value = %d, pml.stock_quantity = %d
        WHERE pm1.meta_key = '_stock'
            AND pm2.meta_key = '_sku'
            AND pm2.meta_value = '%s'
    ", $stock_qty, $stock_qty, $sku ) );
}

代码进入活动子主题（或活动主题）的 functions.php 文件。已测试并有效。

相关： How can I do an UPDATE statement with JOIN in SQL Server?

Answer 3

$wpdb 和 JOIN 工作速度太慢，所以最快的方法是使用四个单独的准备查询：

$conn = mysqli_init();
mysqli_real_connect( $conn, DB_HOST, DB_USER, DB_PASSWORD, DB_NAME );

// Get product ID by SKU
$stmt1 = $conn->prepare( "SELECT post_id FROM {$wpdb->prefix}postmeta WHERE meta_key = '_sku' AND meta_value = ?");

// Update stock level on postmeta table
$stmt2 = $conn->prepare( "UPDATE {$wpdb->prefix}postmeta SET meta_value = ? WHERE meta_key = '_stock' AND post_id = ?");

// Update stock data on wc_product_meta_lookup table
$stmt3 = $conn->prepare( "UPDATE {$wpdb->prefix}wc_product_meta_lookup SET stock_quantity = ?, stock_status = ? WHERE product_id = ?");

// Update stock status on postmeta table
$stmt4 = $conn->prepare( "UPDATE {$wpdb->prefix}postmeta SET meta_value = ? WHERE meta_key = '_stock_status' AND post_id = ?");

foreach ( $products as $product ) {
    $qty        = $product['ON_HAND'];
    $sku        = $product['PRODUCT_SKU'];
    $status     = $qty ? 'instock' : 'onbackorder';

    // Get product ID by SKU
    $stmt1->bind_param( "s", $sku );
    $stmt1->execute();

    $res = $stmt1->get_result();
            
    while ( $row = $res->fetch_assoc() ) {

        $id = $row['post_id'];

        // Update stock level on postmeta table
        $stmt2->bind_param( "dd", $qty, $id );
        $stmt2->execute();

        // Update stock data on wc_product_meta_lookup table
        $stmt3->bind_param( "dsd", $qty, $status, $id );
        $stmt3->execute();

        // Update stock status on postmeta table
        $stmt4->bind_param( "sd", $status, $id );
        $stmt4->execute();
   }
}

如何通过 sku 直接更新 WooCommerce 产品库存数量

How to directly update WooCommerce product stock quantity by its sku

php

sql

wordpress

product

woocommerce