第一: “在管理订单页面上的自行生成的自定义字段中复制此自定义字段的键和值” 不是好方法.
为了达到您的期望,您只是错过了一些小事。您需要:
- 在购物车中存储自定义字段(将产品添加到购物车时)
- 在购物车和结帐页面上呈现此内容
- 将订单中的信息添加为元数据(使其成为订单的一部分)
使用 第 3 点,您将能够在 WooCommerce PDF 发票插件上显示“保修:15 年”。
所以你需要的代码是:
// create the custom field on product admin tab
add_action( 'woocommerce_product_options_general_product_data', 'create_warranty_custom_field' );
function create_warranty_custom_field() {
// Create a custom text field
woocommerce_wp_text_input( array(
'id' => '_warranty',
'type' => 'text',
'label' => __('Warranty', 'woocommerce' ),
'description' => '',
'desc_tip' => 'true',
'placeholder' => __('i.e. 15 years', 'woocommerce' ),
) );
}
// save the data value from this custom field on product admin tab
add_action( 'woocommerce_process_product_meta', 'save_warranty_custom_field' );
function save_warranty_custom_field( $post_id ) {
$wc_text_field = $_POST['_warranty'];
if ( !empty($wc_text_field) ) {
update_post_meta( $post_id, '_warranty', esc_attr( $wc_text_field ) );
}
}
// Store custom field in Cart
add_filter( 'woocommerce_add_cart_item_data', 'store_warranty_custom_field', 10, 2 );
function store_warranty_custom_field( $cart_item_data, $product_id ) {
$warranty_item = get_post_meta( $product_id , '_warranty', true );
if( !empty($warranty_item) ) {
$cart_item_data[ '_warranty' ] = $warranty_item;
// below statement make sure every add to cart action as unique line item
$cart_item_data['unique_key'] = md5( microtime().rand() );
WC()->session->set( 'days_manufacture', $warranty_item );
}
return $cart_item_data;
}
// Render meta on cart and checkout
add_filter( 'woocommerce_get_item_data', 'rendering_meta_field_on_cart_and_checkout', 10, 2 );
function rendering_meta_field_on_cart_and_checkout( $cart_data, $cart_item ) {
$custom_items = array();
// Woo 2.4.2 updates
if( !empty( $cart_data ) ) {
$custom_items = $cart_data;
}
if( isset( $cart_item['_warranty'] ) ) {
$custom_items[] = array( "name" => __( "Warranty", "woocommerce" ), "value" => $cart_item['_warranty'] );
}
return $custom_items;
}
// Add the information in the order as meta data
add_action('woocommerce_add_order_item_meta','add_waranty_to_order_item_meta', 1, 3 );
function add_waranty_to_order_item_meta( $item_id, $values, $cart_item_key ) {
// Retrieving the product id for the order $item_id
$product_id = wc_get_order_item_meta( $item_id, '_product_id', true );
// Getting the warranty value for this product Id
$warranty = get_post_meta( $product_id, '_warranty', true );
// Add the meta data to the order
wc_add_order_item_meta($item_id, 'Warranty', $warranty, true);
}
当然,这会出现在您活动的子主题(或主题)的 function.php 文件中,也可以出现在任何插件文件中。
此代码已经过测试并且可以工作。
参考资料: