php - 自动将订单项自定义元数据添加到 WooCommerce 中的订单备注中

Question

在 WooCommerce 中，with this code,我正在使用产品自定义字段添加一些自定义元数据以在购买时订购商品。我还需要自动将一些自定义元数据添加到客户订单备注中(基本上这样它就会发送到我的运输履行服务)。

下面是我当前使用的代码:

add_action('woocommerce_checkout_create_order', 'before_checkout_create_order', 20, 2);
function before_checkout_create_order( $order, $data ) {

    $items_in_order=array();

    foreach( $order->get_items() as $item_id => $item ) {

        $product = $order->get_product_from_item( $item );

        $text = $product->get_sku();

        $bags_count = array(
            'neutral_bags' => 0,
            'bright_bags' => 0,
            'pastel_bags' => 0,
            'reg_tendons' => 0,
            'gid_tendons' => 0
        );

        $meta_key1  = __('Neutral Bags', 'woocommerce');
        $meta_key2  = __('Bright Bags', 'woocommerce');
        $meta_key3  = __('Pastel Bags', 'woocommerce');
        $meta_key4  = __('Reg Tendons', 'woocommerce');
        $meta_key5  = __('GID Tendons', 'woocommerce');

        $bags_count['neutral_bags'] += wc_get_order_item_meta( $item_id, $meta_key1, true );
        $bags_count['bright_bags']  += wc_get_order_item_meta( $item_id, $meta_key2, true );
        $bags_count['pastel_bags']  += wc_get_order_item_meta( $item_id, $meta_key3, true );
        $bags_count['reg_tendons']  += wc_get_order_item_meta( $item_id, $meta_key4, true );
        $bags_count['gid_tendons']  += wc_get_order_item_meta( $item_id, $meta_key5, true );

        $text .= ' | ' . $bags_count['neutral_bags'];
        $text .= ' | ' . $bags_count['bright_bags'];
        $text .= ' | ' . $bags_count['pastel_bags'];
        $text .= ' | ' . $bags_count['reg_tendons'];
        $text .= ' | ' . $bags_count['gid_tendons'];

        array_push( $items_in_order , $text );

    }

    $text = implode('<br/>', $items_in_order );

    // get customer note
    $note = $order->get_customer_note();

    // Merging existing customer note with bags count (if it exist)
    $note = empty( $note ) ? $text : $note . '<br/>' . $text . ' V1';

    // Set the new customer note before saving
    $order->set_customer_note( $note );

}

根据下面的屏幕截图，您将看到数据已保存到产品中，但未正确拉入订单备注部分。

有什么想法吗？

Answer 1

因为这与您的其他问题和 my answer there 有关，所以元键有点不同:

• neutral_bag_count 元键替换为:Neutral Bags，
• bright_bag_count 元键替换为:Bright Bags。

Update: I have revisited completely all your existing code, avoiding repetitions, making it more effective and compact.

我已经在一个函数中设置了您的自定义字段键和标签，我在所有其他 Hook 函数中调用该函数，并且现在在任何地方都使用 foreach 循环。如果您想更改标签，只需在此实用函数中执行一次即可。

新代码:

// Utility function (keys + translatable labels)
function bags_and_sheets_labels_keys(){
    $domain = 'woocommerce';
    return array(
        'neutral_bag' => __('Neutral Bags', $domain),
        'bright_bag'  => __('Bright Bags', $domain),
        'pastel_bag'  => __('Pastel Bags', $domain),
        'reg_tendon'  => __('Regular Tendon Sheets', $domain),
        'gid_tendon'  => __('GID Tendon Sheets', $domain),
    );
}

// Add custom fields to single product pages
add_action( 'woocommerce_before_add_to_cart_button', 'add_custom_fields_single_product', 20 );
function add_custom_fields_single_product(){
    global $product;
    $bags = bags_and_sheets_labels_keys();
    ?>
        <div class="product-custom-fields">
            <?php foreach($bags as $key => $value ): ?>
            <input type="text" placeholder="<?php echo $value; ?>" name="<?php echo $key; ?>">
            <?php endforeach; ?>
        </div>
        <div class="clear"></div>
    <?php
}

// Save custom fields to cart object
add_filter( 'woocommerce_add_cart_item_data', 'save_custom_fields_cart_item_data', 10, 2 );
function save_custom_fields_cart_item_data( $cart_item_data, $product_id ){
    $bags = bags_and_sheets_labels_keys();
    foreach($bags as $key => $value ):
        if(isset($_POST[$key]))
            $cart_item_data['custom_data'][$key] = sanitize_text_field($_POST[$key]);
    endforeach;

    $cart_item_data['custom_data']['unique_key'] = md5( microtime().rand() );
    WC()->session->set( 'custom_data', $cart_item_data['custom_data'] );
    return $cart_item_data;
}

// Display custom fields in cart items (cart and checkout pages)
add_filter( 'woocommerce_get_item_data', 'display_custom_fields_cart_item_data', 10, 2 );
function display_custom_fields_cart_item_data($item_data, $cart_item){
    if( ! array_key_exists( 'custom_data', $cart_item ) )
        return $item_data;

    $bags = bags_and_sheets_labels_keys();
    foreach($bags as $key => $value ):
        if( array_key_exists( $key, $cart_item['custom_data'] ) )
            $item_data[] = array(
                'key'   => $value,
                'value' => $cart_item['custom_data'][$key]
            );
    endforeach;
    return $item_data;
}

// Save and display custom fields in order item meta
add_action( 'woocommerce_add_order_item_meta', 'add_custom_fields_order_item_meta', 20, 3 );
function add_custom_fields_order_item_meta( $item_id, $cart_item, $cart_item_key ) {
    $bags = bags_and_sheets_labels_keys();
    foreach($bags as $key => $meta_key_label ):
        if( array_key_exists($key, $cart_item['custom_data']) )
            wc_update_order_item_meta( $item_id, $meta_key_label, $cart_item['custom_data'][$key] );
    endforeach;
}

// Add products SKUs and cutom fields as formated data in customer note
add_action('woocommerce_checkout_update_order_meta', 'after_checkout_create_order', 20, 2);
function after_checkout_create_order( $order_id, $data ) {
    $skus = $counts = $output = array();
    $bags  = bags_and_sheets_labels_keys();

    // Get the WC_Order Object (instance)
    $order = wc_get_order($order_id);

    // Loop through order items
    foreach( $order->get_items() as $item_id => $item ) {
        $product = $item->get_product();
        $skus[] = $product->get_sku(); // Set SKUs in an array
        // Add metakeys to the array (if they exist)
        foreach( $bags as $meta_key_label ){
            $item_meta = wc_get_order_item_meta( $item_id, $meta_key_label, true );
            if( ! empty($item_meta) ){
                $counts[$meta_key_label] += $item_meta;
                $count = true;
            }
        }
    }
    // Add Products SKUs
    $text = __('Products SKUs', 'woocommerce') . ': ' . implode(' - ', $skus ). ' | ';

    // Get each custom item meta data count (if they exist)
    if( isset($count)){
        foreach( $counts as $key_label => $value ){
            $output[] = $key_label . __(' count: ', 'woocommerce') . $value;
        }
        // Format all data as a text string
        $text .= implode(' - ', $output );
    }
    // Get customer note
    $note = $order->get_customer_note();
    // Merging existing customer note with bags count (if it exist)
    $note = empty( $note ) ? $text : $note . '<br/>' . $text;
    // Set the new customer note before saving
    $order->set_customer_note( $note );
    $order->save();
}

代码位于事件子主题(或事件主题)的 function.php 文件中。

经过测试并按预期工作。