以编程方式将销售价格添加到产品变体

Question

我需要以编程方式更新可变产品及其所有变体的销售价格。

我需要添加什么样的元字段？

我正在尝试更新主要产品，例如：

update_post_meta($post_id, '_regular_price', '100');
update_post_meta($post_id, '_price', '50');
update_post_meta($post_id, '_sale_price', '50');

然后我更新每个变体

update_post_meta($variation_id, '_regular_price', '100');
update_post_meta($variation_id, '_price', '50');
update_post_meta($variation_id, '_sale_price', '50');
update_post_meta($variation_id, 'attribute_pa_taglia', $term_slug);
update_post_meta($variation_id, '_stock', $stock);
update_post_meta($variation_id, '_stock_status', 'instock');
update_post_meta($variation_id, '_manage_stock', 'yes');

后端：产品详情，一切正常

但是后端（产品列表）和前端给我旧价格

Answer 1

Update: Prices are also cached in transient wp_options table.

Let say your product ID is 222, you will have that transients meta_keys in wp_options table (for this product ID):
'_transient_timeout_wc_product_children_22'
'_transient_wc_product_children_22'
'_transient_timeout_wc_var_prices_222' // <=== <=== HERE
'_transient_wc_var_prices_222'    // <=== <=== <=== HERE
What you can try to do is to update expiration date meta_value to an outdated timestamp, this way:
// Set here your product ID
$main_product_id = 222
$transcient_product_meta_key = '_transient_wc_var_prices_'. $main_product_id;
update_option( $transcient_product_meta_key, strtotime("-12 hours") );
wp_cache_delete ( 'alloptions', 'options' ); // Refresh caches
This way you will force the system to rebuild this outdated cached transient.

此外，您应该尝试 add/update 在您的父产品 ID（设置变体的主要产品）中：

// Set here your Main product ID (for example the last variation ID of your product)
$post_id = 22;

// Set here your variation ID (for example the last variation ID of your product)
$variation_id = 24;

// Here your Regular price
$reg_price = 100;
// Here your Sale price
$sale_price = 50;

update_post_meta($post_id, '_min_variation_price', $sale_price);
update_post_meta($post_id, '_max_variation_price', $sale_price);
update_post_meta($post_id, '_min_variation_regular_price', $reg_price);
update_post_meta($post_id, '_max_variation_regular_price', $reg_price);
update_post_meta($post_id, '_min_variation_sale_price', $sale_price);
update_post_meta($post_id, '_max_variation_sale_price', $sale_price); 

update_post_meta($post_id, '_min_price_variation_id', $variation_id);
update_post_meta($post_id, '_max_price_variation_id', $variation_id);
update_post_meta($post_id, '_min_regular_price_variation_id', $variation_id);
update_post_meta($post_id, '_max_regular_price_variation_id', $variation_id);
update_post_meta($post_id, '_min_sale_price_variation_id', $variation_id);
update_post_meta($post_id, '_max_sale_price_variation_id', $variation_id);

// Optionally
wc_delete_product_transients($variation_id);

Answer 2

此外，我发现了其他同样有效的解决方案：

$product_variable = new WC_Product_Variable($post_id);
$product_variable->sync($post_id);
wc_delete_product_transients($post_id);

Answer 3

2021 年 4 月，代码如下：

        $variation = wc_get_product_object( 'variation', $variation_id );
        $variation->set_props(
                array(
                    'regular_price' => $price,
                    'sale_price' => $sale_price,
                     )
            );
        $variation->save();

来源：函数save_variations($post_id,$post)

Answer 4

如果您查看最新版本 Woocommerce 的 Rest Api 控制器，您会发现它非常简单：

function set_price_to_variation($var_id, $price, $sale) {
    if ( !empty($var_id) ) {
        $variation = wc_get_product($var_id);
        $variation->set_regular_price($price);
        $variation->set_sale_price($sale);
        $variation->save();
    }
    return $variation;
}

参考：\includes\rest-api\Controllers\Version3\class-wc-rest-product-variations-controller.php

以编程方式将销售价格添加到产品变体

Add sale price programmatically to product variations

php

wordpress

woocommerce

product

variations