Я повторно просмотрел этот старый ответ и внес некоторые изменения в код.
Теперь на странице оформления заказа, если "codice fiscale" существует, флажок будет скрыт, и в его поле появится значение "codice fiscale".
Новый код:
add_filter( 'woocommerce_checkout_fields' , 'cbi_codice_fiscale_checkout_fields' );
function cbi_codice_fiscale_checkout_fields ( $fields ) {
// if ( ICL_LANGUAGE_CODE !='it' ) return $fields; // Only for Italy
$domain = 'cbi-custom-parts';
$fields['billing']['checkbox_cf'] = array(
'type' => 'checkbox',
'label' => __('Voui la fattura? (solo per privati)', $domain),
'class' => array('form-row-wide'),
'clear' => true,
);
$codice_fiscale = get_user_meta( get_current_user_id(), 'billing_codice_fiscale', true );
$label_cf = $codice_fiscale ? __('Codice fiscale', $domain) : __('Inserisci il codice fiscale', $domain);
$required = $codice_fiscale ? true : false;
$fields['billing']['billing_codice_fiscale'] = array(
'label' => $label_cf,
'placeholder' => _x('RSSMRA85T10A562S', 'placeholder', $domain),
'class' => array('form-row-wide'),
'clear' => true,
'required' => $required,
);
return $fields;
}
add_action( 'woocommerce_after_checkout_form', 'cbi_cf_conditionally_hide_show', 6);
function cbi_cf_conditionally_hide_show() {
// if ( ICL_LANGUAGE_CODE !='it' ) return; // Only for Italy
$required = esc_attr__( 'required', 'woocommerce' );
$user_codice_fiscale = get_user_meta( get_current_user_id(), 'billing_codice_fiscale', true );
?>
<script type="text/javascript">
(function($){
var required = '<abbr class="required" title="<?php echo $required; ?>">*</abbr>', // Required html
bcf = '#billing_codice_fiscale', bcff = bcf+'_field',
vr = 'validate-required';
// If codice fiscale exist we hide the checkbox
<?php if( $user_codice_fiscale): ?>
$('#checkbox_cf_field').hide();
// If codice fiscale doesn't exist we hide the "codice fiscale" field and enable the script
<?php else: ?>
$(bcff+' > '+bcf).prop('pattern', "^[a-zA-Z]{6}[0-9]{2}[a-zA-Z][0-9]{2}[a-zA-Z][0-9]{3}[a-zA-Z]$"); // Doesn't seem to do something
$(bcff).hide();
$('input#checkbox_cf').change(function(){
if (this.checked) {
$(bcff).fadeIn("fast", function(){
$(this).addClass(vr);
$(bcff+' > label').append(required);
});
} else {
$(bcff).fadeOut("fast", function(){
$(this).removeClass(vr);
$(bcff+' > label > .required').remove();
});
}
$(bcff).val('');
$(bcff).removeClass("woocommerce-validated");
$(bcff).removeClass("woocommerce-invalid woocommerce-invalid-required-field");
});
<?php endif; ?>
})(jQuery);
</script>
<?php
}
// Utility function checking "codice fiscale" validity
function is_cf_valid( $valore, $codice_fiscale = true ){
$espressione = "^[a-z]{6}[0-9]{2}[a-z][0-9]{2}[a-z][0-9]{3}[a-z]$";
if( ! $codice_fiscale ) $espressione = "^[0-9]{11}$";
return eregi( $espressione, $valore ) ? true : false;
}
// Check custom fields value "codice fiscale" when submit and return error notices (if needed)
add_action('woocommerce_checkout_process', 'cbi_cf_process');
function cbi_cf_process() {
if ( isset($_POST['checkbox_cf']) && $_POST['checkbox_cf'] == 1 ) {
if( empty( $_POST['billing_codice_fiscale'] ) ) {
wc_add_notice( __( "Please don't forget to enter your Codice Fiscale/Partita Iva", "cbi-custom-parts" ), "error" );
} else {
$valid_codice_fiscale = is_cf_valid( $_POST['billing_codice_fiscale'] );
if( ( ! $valid_codice_fiscale ) )
wc_add_notice( __( "Wrong data in Codice Fiscale/Partita Iva field", "cbi-custom-parts" ), "error" );
}
} else if( isset( $_POST['billing_codice_fiscale'] ) && ! empty( $_POST['billing_codice_fiscale'] ) ) {
$valid_codice_fiscale = is_cf_valid( $_POST['billing_codice_fiscale'] );
if( ( ! $valid_codice_fiscale ) )
wc_add_notice( __( "Wrong data in Codice Fiscale/Partita Iva field", "cbi-custom-parts" ), "error" );
}
}
// Save the custom field value "codice fiscale" in order meta and in user meta
add_action( 'woocommerce_checkout_update_order_meta', 'cbi_codice_fiscale_update_order_meta' );
function cbi_codice_fiscale_update_order_meta ( $order_id ) {
if ( empty( $_POST['billing_codice_fiscale'] ) ) return;
$customer_id = get_post_meta( $order_id, '_customer_user', true );
update_user_meta( $customer_id, 'billing_codice_fiscale', sanitize_text_field( $_POST['billing_codice_fiscale'] ) );
update_post_meta( $order_id, '_billing_codice_fiscale', sanitize_text_field( $_POST['billing_codice_fiscale'] ) );
}
// Backend : Display in Order edit pages, after billing address, the custom field value "codice fiscale"
add_action( 'woocommerce_admin_order_data_after_billing_address', 'cbi_cf_admin_order_data_after_billing_address', 10, 1 );
function cbi_cf_admin_order_data_after_billing_address( $order ){
$codice_fiscale = get_post_meta( $order->get_id(), '_billing_codice_fiscale', true );
if( ! empty( $codice_fiscale ) )
echo '<p><strong>'.__('Codice Fiscale', 'cbi-cf-invoice').':</strong> ' . $codice_fiscale . '</p>';
}
// Backend: Display and edit user profile custom field value "codice fiscale" Only for Italy
add_action( 'show_user_profile', 'add_extra_user_codice_fiscale', 1, 1 );
add_action( 'edit_user_profile', 'add_extra_user_codice_fiscale', 1, 1 );
function add_extra_user_codice_fiscale( $user )
{
//if( get_user_meta( $user->ID, 'billing_country', true ) != 'IT' ) return; // Only for Italy
$codice_fiscale = get_user_meta( $user->ID, 'billing_codice_fiscale', true );
if( empty( $codice_fiscale ) ) $codice_fiscale = '';
?>
<h3><?php _e( "Codice fiscale", "cbi-custom-parts" ); ?></h3>
<table class="form-table"><tr>
<th><label for="billing_codice_fiscale"><?php _e( "Codice fiscale", "cbi-custom-parts" ); ?></label></th>
<td><input type="text" name="billing_codice_fiscale" value="<?php echo esc_attr($codice_fiscale); ?>" class="regular-text" /></td>
</tr></table><br />
<?php
}
// Backend: Save edited user profile custom field value "codice fiscale" Only for Italy
add_action( 'personal_options_update', 'save_extra_user_codice_fiscale' );
add_action( 'edit_user_profile_update', 'save_extra_user_codice_fiscale' );
function save_extra_user_codice_fiscale( $user_id )
{
if( ! empty( $_POST['billing_codice_fiscale'] ) )
update_user_meta( $user_id, 'billing_codice_fiscale', sanitize_text_field( $_POST['billing_codice_fiscale'] ) );
}
Код помещается в файл function.php вашей активной дочерней темы (или активной темы). Протестировано и работает.