使用 Woocommerce 中的挂钩更新产品价格

问题描述：

当产品在 wp-admin 中更新时，我尝试使用带有整数或字符串的元键 _regular_price 更新产品常规价格.

I am trying to update the the product regular price using the meta key _regular_price with an integer or string when the product is updated in the wp-admin.

我想要的用户流程是:

打开产品编辑页面
点击更新按钮
看到页面重新加载后 _regular_price 设置为 20.

add_action( 'woocommerce_process_product_meta', 'update_test' );
function update_test( $post_id ) {
    update_post_meta( $post_id, '_regular_price', 20 );
}

请帮我找出我在上述函数中做错的地方，并告诉我任何其他方法来实现这一点.

Please help me find what I'm doing wrong in the above function and let me know of any other ways to accomplish this.

答

更新 (2018 年 8 月)

您的代码是正确的，但钩子是为 Metaboxes 自定义字段制作的.

Your code is correct but the hook is made for Metaboxes custom fields.

你应该使用 save_post_{$post->post_type} Wordpress hook 仅针对产品帖子类型.

You should use instead save_post_{$post->post_type} Wordpress hook targeting product post type only.

此外，您可能需要使用wc_delete_product_transients().

Also You may need to update the active price and to refresh the product transient cache with the function wc_delete_product_transients().

所以你的代码将是:

add_action( 'save_post', 'update_the_product_price', 10, 3 );
function update_the_product_price( $post_id, $post, $update ) {

    if ( $post->post_type != 'product') return; // Only products
    
    // If this is an autosave, our form has not been submitted, so we don't want to do anything.
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
        return $post_id;

    // Check the user's permissions.
    if ( ! current_user_can( 'edit_product', $post_id ) )
        return $post_id;

    $price = 50; // <===  <===  <===  <===  <===  <=== Set your price

    $product = wc_get_product( $post_id ); // The WC_Product object

    // if product is not on sale
    if( ! $product->is_on_sale() ){
        update_post_meta( $post_id, '_price', $price ); // Update active price
    }
    update_post_meta( $post_id, '_regular_price', $price ); // Update regular price
    wc_delete_product_transients( $post_id ); // Update product cache
}

代码位于活动子主题(或主题)的 function.php 文件或任何插件文件中.

经过测试并有效......

Tested and works…

使用 Woocommerce 中的挂钩更新产品价格

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