在WooCommerce 4中以编程方式从自定义产品类型添加新产品

1）。从WooCommerce 3开始，WC_Order不再使用WordPress的旧方法，而应使用方法。

重要笔记：

• 产品图片：通常，图片是通过附件ID设置的，而不是通过URL设置的。另外save_featured_image()是不是一个WordPress的功能。
• 产品名称（或标题）：是必填项。
• 您提供的代码中有很多错误和错误。

产品类型和定制产品类型

• 在下面的代码中，您将必须定义产品类型。
• 定制产品类型：还必须定义为定制产品类型源代码Class定义的Class名称。

例如，对于“分组”产品类型：

$auction_title    = isset($_POST['auction_title']) ? sanitize_text_field($_POST['auction_title']) : '';
$auction_category = isset($_POST['auction_category']) ? esc_attr($_POST['auction_category']) : 'auction';

$product_type = 'grouped'; // <== Here define your product type slug
$class_name   = WC_Product_Factory::get_classname_from_product_type($product_type); // Get the product Class name

// If the product class exist for the defined product type
if( ! empty($class_name) && class_exists( $class_name ) ) {
    $product = new $class_name(); // Get an empty instance of a grouped product Object
}
// For a custom product class
else {
    $class_name = 'WC_Product_custom'; // <== Here define the Class name of your custom product type

    if( class_exists( $class_name ) ) {
        $product = new $class_name(); // Get an empty instance of a custom class product Object
    } else {
        wp_send_json_error( array( 'message' =>__('Wrong product class') ), 409 );
        return; // or exit;
    }
}

$product->set_name($auction_title);
$product->set_description('Description');
$product->set_short_description('Short_description');
$product->set_status('publish');

// $product-> set_image_id( $image_id ); // ???

$category_term = get_term_by( 'slug', $auction_category, 'product_cat' ); // Get the term from its slug
if( is_a($category_term, 'WP_Term') ) {
    $product->set_category_ids( array($category_term->term_id) );
}

$product_id = $product->save(); // Save product to database

if ( $product_id ) { 
    // Set the post author
    if( isset($_POST['author_id']) ) {
        wp_update_post('ID' => $product_id, 'post_author' => esc_attr($_POST['author_id']) );
    }

    wp_send_json_success(array('auction_id' => $product_id,'message' => __('Auction Added Successfully!!') ), 200);
} else {
    wp_send_json_error( array( 'auction_id' => $product_id, 'message' =>__('Auction failed :(') ), 400 );
}

此代码应该更好地工作。

2）。或者，您仍然可以结合使用Wordpress Old Way：

$auction_data = array(
    'post_author'  => isset($_POST['author_id']) ? esc_attr($_POST['author_id']) : '',
    'post_content' => 'Description',
    'post_status'  => "publish",
    'post_title'   => isset($_POST['auction_title']) ? sanitize_text_field($_POST['auction_title']) : __('Empty title'),
    'post_parent'  => '',
    'post_type'    => "product",
);

$auction_id = wp_insert_post($auction_data, $wp_error);

if ( $auction_id ) {
    $auction_category = isset($_POST['auction_category']) ? esc_attr($_POST['auction_category']) : 'auction';
    wp_set_object_terms( $auction_id, $auction_category, 'product_cat' );
    
    if( isset($_POST['auction_image_url']) && function_exists('save_featured_image') ) {
        save_featured_image($auction_image, ecs_attr($_POST['auction_image_url']));
    }

    update_post_meta( $auction_id, '_author_id', $author_id );
    
    $product_type = 'grouped'; // <== Here define your product type slug
    $class_name   = WC_Product_Factory::get_product_classname( $product_id, $new_product_type );
    
    // If the product class exist for the defined product type
    if( ! empty($class_name) && class_exists( $class_name ) ) {
        $product = new $class_name($auction_id); // Get an empty instance of a grouped product Object
    }
    // For a custom product class (you may have to define the custom class name)
    else {
        $class_name = 'WC_Product_custom'; // <== Here define the Class name of your custom product type
    
        if( class_exists( $class_name ) ) {
            $product = new $class_name($auction_id); // Get an empty instance of a custom class product Object
        } else {
            wp_send_json_error( array( 'message' =>__('Wrong product class') ), 409 );
            return; // or exit;
        }
    }

    $auction_id = $product->save(); // Save to database
    
    wp_send_json_success( array('auction_id' => $auction_id, 'message' => __('Auction Added Successfully!!') ), 200 );
} else {
    wp_send_json_error( array('message' => __('Auction Failed') 400 );
}

这也应该起作用。

有关：

• 在Woocommerce 3中使用CRUD方法以编程方式创建产品
• 更改WooCommerce 3+中现有产品的产品类型
• WC_Product类（方法）和WC_Product_Grouped类（方法）的源代码