我已经测试了您的代码并更正了一些部分,以使该产品自定义字段出现在购物车和结账页面上。
这是更正后的代码:
// Insert a Custom Admin Field
add_action( 'woocommerce_product_options_general_product_data', 'woo_add_custom_general_fields' );
function woo_add_custom_general_fields() {
echo '<div class="options_group">';
woocommerce_wp_text_input( array(
'id' => 'days_manufacture',
'label' => __( 'Days for Manufacture', 'woocommerce' ),
'placeholder' => '',
'description' => __( 'Insert here', 'woocommerce' ),
'type' => 'number',
'custom_attributes' => array(
'step' => 'any',
'min' => '1'
),
) );
echo '</div>';
}
// Save the field
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save' );
function woo_add_custom_general_fields_save( $post_id ){
$woocommerce_number_field = $_POST['days_manufacture'];
if( !empty( $woocommerce_number_field ) )
update_post_meta( $post_id, 'days_manufacture', esc_attr( $woocommerce_number_field ) );
}
// Store custom field
add_filter( 'woocommerce_add_cart_item_data', 'save_days_field', 10, 2 );
function save_days_field( $cart_item_data, $product_id ) {
$special_item = get_post_meta( $product_id , 'days_manufacture',true );
if(!empty($special_item)) {
$cart_item_data[ 'days_manufacture' ] = $special_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', $special_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_item_data, $cart_item ) {
if( isset( $cart_item['days_manufacture'] ) ) {
$cart_item_data[] = array( "name" => __( "Days", "woocommerce" ), "value" => $cart_item['days_manufacture'] );
}
return $cart_item_data;
}
当然,这会出现在您的活动子主题(或主题)的 function.php 文件中,或者也出现在任何插件文件中。
这段代码已经过测试并且可以工作。
参考:WooCommerce:将自定义 Metabox 添加到管理订单页面 https://stackoverflow.com/questions/37772912/woocommerce-add-custom-metabox-to-admin-order-page