UPDATE 此处可重新排序 WC 3+ 中的结帐字段
当您添加其他海关字段并进行一些更改时，您将在下面找到使其正常工作所需的代码。这正在成为一个真正的发展，不应该在这里问。我总是尽力完成我已经开始的事情，所以我回答了这个问题。
最困难的事这是为了避免在选择器打开时出现关于隐藏必填字段的 WooCommerce 警报通知Individual。为此你有义务（在 jQuery 的帮助下）在隐藏字段中输入“否”值。
因此，当提交订单时，您将获得订单元数据中的所有自定义字段值（例如Individual你的隐藏字段将会有一个"no" value. 这是唯一可能的方法。
但是，由于我们可以处理显示的数据，甚至随后更新它，所以这不是问题，正如您将看到的......
这是 PHP 代码（位于 function.php 中）：
// Registering external jQuery/JS file
function cfields_scripts() {
// IMPORTANT NOTE:
// For a child theme replace get_template_directory_uri() by get_stylesheet_directory_uri()
// The external cfields.js file goes in a subfolder "js" of your active child theme or theme.
wp_enqueue_script( 'checkout_script', get_template_directory_uri().'/js/cfields.js', array('jquery'), '1.0', true );
}
add_action( 'wp_enqueue_scripts', 'cfields_scripts' );
add_filter( 'woocommerce_checkout_fields', 'ba_custom_checkout_billing_fields' );
function ba_custom_checkout_billing_fields( $fields ) {
// 1. Creating the additional custom billing fields
// The "status" selector
$fields['billing']['billing_status']['type'] = 'select';
$fields['billing']['billing_status']['class'] = array('form-row-wide, status-select');
$fields['billing']['billing_status']['required'] = true;
$fields['billing']['billing_status']['label'] = __('Statut Juridic', 'theme_domain');
$fields['billing']['billing_status']['placeholder'] = __('Alege statutul', 'theme_domain');
$fields['billing']['billing_status']['options'] = array(
'1' => __( 'Persoana Fizica', 'theme_domain' ),
'2' => __( 'Persoana Juridica', 'theme_domain' )
);
// The "Nr. registrul comertului" text field (this field is common)
$fields['billing']['billing_ser_id']['type'] = 'text';
$fields['billing']['billing_ser_id']['class'] = array('form-row-wide', 'status-group2');
$fields['billing']['billing_ser_id']['required'] = true; // <== HERE has to be "true" as it always be shown and need validation
$fields['billing']['billing_ser_id']['label'] = __('Nr. Reg. Comert', 'theme_domain');
$fields['billing']['billing_ser_id']['placeholder'] = __('Introdu numarul', 'theme_domain');
// The "Banca" text field
$fields['billing']['billing_bt_id']['type'] = 'text';
$fields['billing']['billing_bt_id']['class'] = array('form-row-wide', 'status-group2');
$fields['billing']['billing_bt_id']['required'] = false;
$fields['billing']['billing_bt_id']['label'] = __('Banca', 'theme_domain');
$fields['billing']['billing_bt_id']['placeholder'] = __('Adauga Banca', 'theme_domain');
// The "IBAN" text field
$fields['billing']['billing_ib_id']['type'] = 'text';
$fields['billing']['billing_ib_id']['class'] = array('form-row-wide', 'status-group2');
$fields['billing']['billing_ib_id']['required'] = false;
$fields['billing']['billing_ib_id']['label'] = __('IBAN', 'theme_domain');
$fields['billing']['billing_ib_id']['placeholder'] = __('Adauga IBAN-ul', 'theme_domain');
// The "CIF" text field
$fields['billing']['billing_cf_id']['type'] = 'text';
$fields['billing']['billing_cf_id']['class'] = array('form-row-wide', 'status-group2');
$fields['billing']['billing_cf_id']['required'] = false;
$fields['billing']['billing_cf_id']['label'] = __('Cod Fiscal', 'theme_domain');
$fields['billing']['billing_cf_id']['placeholder'] = __('Adauga CIF-ul', 'theme_domain');
// 2. Ordering the billing fields
$fields_order = array(
'billing_first_name', 'billing_last_name', 'billing_email',
'billing_phone', 'billing_address_1', 'billing_address_2',
'billing_postcode', 'billing_city', 'billing_country',
'billing_status', 'billing_company', 'billing_ser_id',
'billing_bt_id', 'billing_ib_id', 'billing_cf_id'
);
foreach($fields_order as $field)
$ordered_fields[$field] = $fields['billing'][$field];
$fields['billing'] = $ordered_fields;
// 4. Returning Checkout customized billing fields
return $fields;
}
// Process the checkout (Checking if required fields are not empty)
add_action('woocommerce_checkout_process', 'ba_custom_checkout_field_process');
function ba_custom_checkout_field_process() {
if ( ! $_POST['billing_ser_id'] )
wc_add_notice( __( '<strong>Nr. Reg. Comert</strong> is a required field.', 'theme_domain' ), 'error' );
if ( ! $_POST['billing_bt_id'] )
wc_add_notice( __( '<strong>Banca</strong> is a required field.', 'theme_domain' ), 'error' );
if ( ! $_POST['billing_ib_id'] )
wc_add_notice( __( '<strong>IBAN</strong> is a required field.', 'theme_domain' ), 'error' );
if ( ! $_POST['billing_cf_id'] )
wc_add_notice( __( '<strong>Cod Fiscal</strong> is a required field.', 'theme_domain' ), 'error' );
}
// Adding/Updating meta data to the order with the custom-fields values
add_action( 'woocommerce_checkout_update_order_meta', 'ba_custom_checkout_field_update_order_meta' );
function ba_custom_checkout_field_update_order_meta( $order_id ) {
$billing_company = $_POST['billing_company'];
$billing_ser_id = $_POST['billing_ser_id'];
$billing_bt_id = $_POST['billing_bt_id'];
$billing_ib_id = $_POST['billing_ib_id'];
$billing_cf_id = $_POST['billing_cf_id'];
// For Individual resetting billing company to "" (no value) instead of 'no'
if ( !empty($billing_company) && 'no' == $billing_company )
update_post_meta( $order_id, '_billing_company', '' );
if ( !empty($billing_ser_id) )
update_post_meta( $order_id, '_billing_ser_id', sanitize_text_field( $billing_ser_id ) );
// Adding/updating data only for companies
if ( !empty($billing_bt_id) && 'no' != $billing_bt_id )
update_post_meta( $order_id, '_billing_bt_id', sanitize_text_field( $billing_bt_id ) );
// Adding/updating data only for companies
if ( !empty($billing_ib_id) && 'no' != $billing_ib_id )
update_post_meta( $order_id, '_billing_ib_id', sanitize_text_field( $billing_ib_id ) );
// Adding/updating data only for companies
if ( !empty($billing_cf_id) && 'no' != $billing_cf_id )
update_post_meta( $order_id, '_billing_cf_id', sanitize_text_field( $billing_cf_id ) );
}
// Display custom-field Title/values on the order edit page
add_action( 'woocommerce_admin_order_data_after_billing_address', 'ba_custom_checkout_field_display_admin_order_meta', 10, 1 );
function ba_custom_checkout_field_display_admin_order_meta( $order ){
$output = '';
$billing_ser_id = get_post_meta( $order->id, '_billing_ser_id', true );
$billing_bt_id = get_post_meta( $order->id, '_billing_bt_id', true );
$billing_ib_id = get_post_meta( $order->id, '_billing_ib_id', true );
$billing_cf_id = get_post_meta( $order->id, '_billing_cf_id', true );
if ( !empty($billing_ser_id) ){
$output .= '<p><strong>' . __( 'Nr. Reg. Comert', 'theme_domain' ) . ':</strong> ' . $billing_ser_id . '</p>';
}
if ( !empty($billing_bt_id) && 'no' != $billing_bt_id ){
$output .= '<p><strong>' . __( 'Banca', 'theme_domain' ) . ':</strong> ' . $billing_bt_id . '</p>';
}
if ( !empty($billing_ib_id) && 'no' != $billing_ib_id ){
$output .= '<p><strong>' . __( 'IBAN', 'theme_domain' ) . ':</strong> ' . $billing_ib_id . '</p>';
}
if ( !empty($billing_cf_id) && 'no' != $billing_cf_id ){
$output .= '<p><strong>' . __( 'Cod Fiscal', 'theme_domain' ) . ':</strong> ' . $billing_cf_id . '</p>';
}
echo $output;
}
要在客户订单视图上显示数据，请在Thankyou page, 我的账户订单查看在电子邮件通知中，将这 2 个代码片段添加到您的function.php file:
// Displaying data on order view in "customer details" zone
add_action('woocommerce_order_details_after_customer_details','ba_add_values_to_order_item_meta', 10, 1 );
function ba_add_values_to_order_item_meta( $order ) {
$output = '';
$billing_ser_id = get_post_meta( $order->id, '_billing_ser_id', true );
$billing_bt_id = get_post_meta( $order->id, '_billing_bt_id', true );
$billing_ib_id = get_post_meta( $order->id, '_billing_ib_id', true );
$billing_cf_id = get_post_meta( $order->id, '_billing_cf_id', true );
if ( !empty($billing_ser_id) )
$output .= '
<tr>
<th>' . __( "Nr. Reg. Comert:", "woocommerce" ) . '</th>
<td>' . $billing_ser_id . '</td>
</tr>';
if ( !empty($billing_bt_id) && 'no' != $billing_bt_id )
$output .= '
<tr>
<th>' . __( "Banca:", "woocommerce" ) . '</th>
<td>' . $billing_bt_id . '</td>
</tr>';
if ( !empty($billing_ib_id) && 'no' != $billing_ib_id )
$output .= '
<tr>
<th>' . __( "IBAN:", "woocommerce" ) . '</th>
<td>' . $billing_ib_id . '</td>
</tr>';
if ( !empty($billing_cf_id) && 'no' != $billing_cf_id )
$output .= '
<tr>
<th>' . __( "Cod Fiscal:", "woocommerce" ) . '</th>
<td>' . $billing_cf_id . '</td>
</tr>';
echo $output;
}
// Displaying data on email notifications
add_action('woocommerce_email_customer_details','ba_add_values_to_emails_notifications', 15, 4 );
function ba_add_values_to_emails_notifications( $order, $sent_to_admin, $plain_text, $email ) {
$output = '<ul>';
$billing_ser_id = get_post_meta( $order->id, '_billing_ser_id', true );
$billing_bt_id = get_post_meta( $order->id, '_billing_bt_id', true );
$billing_ib_id = get_post_meta( $order->id, '_billing_ib_id', true );
$billing_cf_id = get_post_meta( $order->id, '_billing_cf_id', true );
if ( !empty($billing_ser_id) )
$output .= '<li><strong>' . __( "Nr. Reg. Comert:", "woocommerce" ) . '</strong> <span class="text">' . $billing_ser_id . '</span></li>';
if ( !empty($billing_bt_id) && 'no' != $billing_bt_id )
$output .= '<li><strong>' . __( "Banca:", "woocommerce" ) . '</strong> <span class="text">' . $billing_bt_id . '</span></li>';
if ( !empty($billing_ib_id) && 'no' != $billing_ib_id )
$output .= '<li><strong>' . __( "IBAN:", "woocommerce" ) . '</strong> <span class="text">' . $billing_ib_id . '</span></li>';
if ( !empty($billing_cf_id) && 'no' != $billing_cf_id )
$output .= '<li><strong>' . __( "Cod Fiscal:", "woocommerce" ) . '</strong> <span class="text">' . $billing_cf_id . '</span></li>';
$output .= '</ul>';
echo $output;
}
JavaScriptcfields.js code（外部文件）：
// This file named "cfields.js" goes in a subfolder "js" of your active child theme or theme
jQuery(document).ready(function($){
// Common Serial ID field
if(! $("#billing_ser_id_field").hasClass("validate-required") ){
$("#billing_ser_id_field").addClass("validate-required");
}
// The 4 Fields to hide at start (if not "Persoana Juridica")
if($("#billing_status option:selected").val() == "1"){
$('#billing_company_field').hide(function(){
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_company').val("no");
});
$('#billing_bt_id_field').hide(function(){
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_bt_id').val("no");
});
$('#billing_ib_id_field').hide(function(){
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_ib_id').val("no");
});
$('#billing_cf_id_field').hide(function(){
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_cf_id').val("no");
});
}
// Action with the selector (Showing/hiding and adding/removing classes)
$("#billing_status").change(function(){
// For "Persoana Juridica"
if($("#billing_status option:selected").val() == "2")
{
$('#billing_company_field').show(function(){
$(this).addClass("validate-required");
$('#billing_company').val("");
});
$('#billing_bt_id_field').show(function(){
$(this).children('label').append( ' <abbr class="required" title="required">*</abbr>' );
$(this).addClass("validate-required");
$('#billing_bt_id').val("");
});
$('#billing_ib_id_field').show(function(){
$(this).children('label').append( ' <abbr class="required" title="required">*</abbr>' );
$(this).addClass("validate-required");
$('#billing_ib_id').val("");
});
$('#billing_cf_id_field').show(function(){
$(this).children('label').append( ' <abbr class="required" title="required">*</abbr>' );
$(this).addClass("validate-required");
$('#billing_cf_id').val("");
});
}
// For "Persoana Fizica"
else if($("#billing_status option:selected").val() == "1")
{
$('#billing_company_field').hide(function(){
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_company').val("no");
});
$('#billing_bt_id_field').hide(function(){
$(this).children("abbr.required").remove();
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_bt_id').val("no");
});
$('#billing_ib_id_field').hide(function(){
$(this).children("abbr.required").remove();
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_ib_id').val("no");
});
$('#billing_cf_id_field').hide(function(){
$(this).children("abbr.required").remove();
$(this).removeClass("validate-required");
$(this).removeClass("woocommerce-validated");
$('#billing_cf_id').val("no");
});
}
});
});
所有这些代码都经过测试并且可以工作
