Updated (替换错了WC_Session
method set()
with get()
在第一个函数上)
这适用于访客用户。将您的代码替换为:
// Display checkout custom field
add_action( 'woocommerce_before_order_notes', 'add_custom_checkout_field' );
function add_custom_checkout_field( $checkout ) {
$key_field = 'gst_no';
woocommerce_form_field( $key_field, array(
'type' => 'text',
'class' => array( 'form-row-wide' ),
'label' => __('GST Number'),
'placeholder' => __('GST Number'),
'required' => true
//'default' => $saved_gst_no,
), $checkout->get_value($key_field) ? $checkout->get_value($key_field) : WC()->session->get($key_field) );
}
// Save checkout custom field value in a WC_Session variable
add_action( 'woocommerce_checkout_create_order', 'action_checkout_create_order', 10, 2 );
function action_checkout_create_order( $order, $data ) {
$key_field = 'gst_no';
if( isset($_POST[$key_field]) ) {
WC()->session->set($key_field, sanitize_text_field($_POST[$key_field]));
}
}
// Save checkout custom field value as user meta data
add_action( 'woocommerce_checkout_update_customer', 'action_checkout_update_customer', 10, 2 );
function action_checkout_update_customer( $customer, $data ) {
$key_field = $key_field;
if( isset($_POST['gst_no']) ) {
$customer->update_meta_data($key_field, sanitize_text_field($_POST[$key_field]));
}
}
Note:使用 WC_Session 变量存储客人提交的值,允许在未完成交易而返回时在结账时显示该值。