嗯，这很简单。你的代码应该是这样的：
/* ---------------------- Registration page ----------------------- */
/* Add extra fields in registration form */
add_action( 'woocommerce_register_form_start', 'my_extra_register_fields' );
function my_extra_register_fields() {
?>
<p class="woocommerce-FormRow woocommerce-FormRow--wide form-row form-row-wide">
<label for="reg_billing_vat"><?php _e( 'Billing VAT', 'woocommerce' ); ?><span class="required">*</span></label>
<input type="text" class="input-text" name="billing_vat" id="reg_billing_vat" value="<?php if ( ! empty( $_POST['billing_vat'] ) ) esc_attr_e( $_POST['billing_vat'] ); ?>">
</p>
<div class="clearfix"></div>
<?php
}
/* registration form fields Validation */
add_action( 'woocommerce_register_post', 'my_validate_extra_register_fields', 10, 3 );
function my_validate_extra_register_fields( $username, $email, $validation_errors ) {
if ( isset( $_POST['billing_vat'] ) && empty( $_POST['billing_vat'] ) ) {
$validation_errors->add( 'billing_vat_error', __( 'VAT number is required!', 'woocommerce' ) );
}
return $validation_errors;
}
/* Below code save extra fields when new user register */
add_action( 'woocommerce_created_customer', 'my_save_extra_register_fields' );
function my_save_extra_register_fields( $customer_id ) {
if ( isset( $_POST['billing_vat'] ) ) {
// VAT field which is used in WooCommerce
update_user_meta( $customer_id, 'billing_vat', sanitize_text_field( $_POST['billing_first_name'] ) );
}
}
/* ---------------------- Account page ----------------------- */
/* Show custom fields on Account details page */
add_action( 'woocommerce_edit_account_form', 'my_woocommerce_edit_account_form' );
function my_woocommerce_edit_account_form() {
$user_id = get_current_user_id();
$user = get_userdata( $user_id );
if ( !$user ) return;
$billing_vat = get_user_meta( $user_id, 'billing_vat', true );
?>
<fieldset>
<legend>Custom information</legend>
<p class="woocommerce-FormRow woocommerce-FormRow--wide form-row form-row-wide">
<label for="billing_vat">Billing VAT</label>
<input type="text" name="billing_vat" id="billing_vat" value="<?php echo esc_attr( $billing_vat ); ?>" class="input-text" />
</p>
<div class="clearfix"></div>
</fieldset>
<?php
}
/* Below code save extra fields when account details page form submitted */
add_action( 'woocommerce_save_account_details', 'my_woocommerce_save_account_details' );
function my_woocommerce_save_account_details( $user_id ) {
if ( isset( $_POST['billing_vat'] ) ) {
update_user_meta( $user_id, 'billing_vat', sanitize_text_field( $_POST['billing_vat'] ) );
}
}
您可以根据需要添加更多自定义字段。
是的，您可以使用woocommerce_billing_fields 过滤钩子在my-account/edit-address/billing/ 下添加自定义字段。
所以代码应该如下所示：
/* Add field under my account billing */
add_filter( 'woocommerce_billing_fields', 'my_woocommerce_billing_fields' );
function my_woocommerce_billing_fields( $fields ) {
$user_id = get_current_user_id();
$user = get_userdata( $user_id );
if ( !$user ) return;
$fields['billing_vat'] = array(
'type' => 'text',
'label' => __('VAT', 'woocommerce'),
'placeholder' => _x('VAT Number', 'placeholder', 'woocommerce'),
'required' => true,
'class' => array('form-row'),
'clear' => true,
'default' => get_user_meta( $user_id, 'billing_vat', true ) // assing default value if any
);
return $fields;
}
/* Format custom field to show on my account billing */
add_filter( 'woocommerce_my_account_my_address_formatted_address', 'custom_my_account_my_address_formatted_address', 10, 3 );
function custom_my_account_my_address_formatted_address( $fields, $customer_id, $name ) {
$fields['vat'] = get_user_meta( $customer_id, $name . '_vat', true );
return $fields;
}
/* Replace the key for custom field to show on my account billing */
add_filter( 'woocommerce_formatted_address_replacements', 'custom_formatted_address_replacements', 10, 2 );
function custom_formatted_address_replacements( $address, $args ) {
$address['{vat}'] = '';
if ( ! empty( $args['vat'] ) ) {
$address['{vat}'] = __( 'VAT Number', 'woocommerce' ) . ': ' . $args['vat'];
}
return $address;
}
add_filter( 'woocommerce_localisation_address_formats', 'custom_localisation_address_format' );
function custom_localisation_address_format( $formats ) {
foreach($formats as $key => $value) :
$formats[$key] .= "\n\n{vat}";
endforeach;
return $formats;
}