php - Woocommerce 管理员编辑订单页面常规部分中的自定义可编辑字段

Question

在 Woocommerce 中，下面的代码检索特定的自定义订单项目元数据，并在管理员编辑订单页面的一般部分区域下添加一个可编辑的自定义字段:

function editable_order_meta_general( $order_id ){ 
    $order = wc_get_order( $order_id );

    // Loop through order items
    foreach( $order->get_items() as $item_id => $item ){
        $yourref  = $item->get_meta('Your Reference');
    }
    ?>
    <br class="clear" />
    <h4>Customer Details <a href="#" class="edit_address">Edit</a></h4>        

    <div class="address">                               
    <p><strong>Customer Reference:</strong> <?php echo $yourref ?></p>    
    </div>
    <div class="edit_address"><?php 

    woocommerce_wp_text_input( array(
        'id' => 'Your Reference',
        'label' => 'Customer Ref:',
        'value' => $yourref,
        'wrapper_class' => 'form-field-wide'
    ) );

    ?></div>
}
add_action( 'woocommerce_admin_order_data_after_order_details', 'editable_order_meta_general' );

现在我正在尝试使用以下代码保存自定义可编辑字段值，但是一旦我点击更新它就不会保存任何内容。

function save_general_detail_metas( $ord_id ){
    update_post_meta( $ord_id, 'Your Reference', wc_clean( $_POST[ 'Your Reference' ] ) );
    // wc_clean() and wc_sanitize_textarea() are WooCommerce sanitization functions
}
add_action( 'woocommerce_process_shop_order_meta', 'save_general_detail_metas' );

我做错了什么？如何保存此自定义字段值？

任何帮助将不胜感激。

Answer 1

您的代码中存在一些错误和错误。请尝试以下方法:

// Output a custom editable field in backend edit order pages under general section
add_action( 'woocommerce_admin_order_data_after_order_details', 'editable_order_custom_field', 12, 1 );
function editable_order_custom_field( $order ){
    // Loop through order items
    foreach( $order->get_items() as $item_id => $item ){
        // Get "customer reference" from order item meta data
        if( $item->get_meta('Your Reference') ){
            // The "customer reference"
            $item_value = $item->get_meta('Your Reference');

            // We output a hidden field with the Item ID (to be able to update this order item meta data later)
            echo '<input type="hidden" name="item_id_ref" value="' . $item_id . '">';

            break; // We stop the loop
        }
    }

    // Get "customer reference" from meta data (not item meta data)
    $updated_value = $order->get_meta('_customer_ref');

    // Replace "customer reference" value by the meta data if it exist
    $value = $updated_value ? $updated_value : ( isset($item_value) ? $item_value : '');

    // Display the custom editable field
    woocommerce_wp_text_input( array(
        'id'            => 'customer_ref',
        'label'         => __("Customer Reference:", "woocommerce"),
        'value'         => $value,
        'wrapper_class' => 'form-field-wide',
    ) );
}

// Save the custom editable field value as order meta data and update order item meta data
add_action( 'woocommerce_process_shop_order_meta', 'save_order_custom_field_meta_data', 12, 2 );
function save_order_custom_field_meta_data( $post_id, $post ){
    if( isset( $_POST[ 'customer_ref' ] ) ){
        // Save "customer reference" as order meta data
        update_post_meta( $post_id, '_customer_ref', sanitize_text_field( $_POST[ 'customer_ref' ] ) );

        // Update the existing "customer reference" item meta data
        if( isset( $_POST[ 'item_id_ref' ] ) )
            wc_update_order_item_meta( $_POST[ 'item_id_ref' ], 'Your Reference', $_POST[ 'customer_ref' ] );
    }
}

代码进入您的事件子主题(或主题)的 function.php 文件中。经过测试并且有效。