Ich kann den Weg nicht finden, um den Rechnungsstatus und die Postleitzahl zu überschreiben.

Wie kann ich die anderen Teile bestehender Rechnungsfelder wie Rechnungsstatus und Postleitzahl bearbeiten?

Das ist was ich im @ hafunctions.php -Datei in meinem untergeordneten Design (ich habe den Code eingefügt, der sich auf den Abrechnungsteil auswirkt):

    <?php
function my_custom_checkout_field( $checkout ) {
  global $wpdb;
  $check_zone  = $wpdb->get_results("select area_name from brick_area where id='".$_SESSION['area']."'",ARRAY_A);

                if(!empty($check_zone)){
                    $check_zoneid = $check_zone['0'];
                }


    woocommerce_form_field( 'my_field_name', array(
        'type'          => 'text',
        'class'         => array('my-field-class form-row-wide'),
        'label'         => __('Delivery Area'),
        'placeholder'   => __('Area'),
        'readonly'      =>'readonly',
        'default'       => $check_zoneid['area_name']
        ), $checkout->get_value( 'my_field_name' ));


    woocommerce_form_field( 'my_expected_date', array(
        'type'          => 'text',
        'class'         => array('my-field-class form-row-wide'),
        'required'      => true,
        'label'         => __('Expected Delivery Date'),
        'placeholder'   => __('Enter expected delivery date.'),
        ), $checkout->get_value( 'my_expected_date' ));

   /*woocommerce_form_field( 'my_expected_time', array(
        'type'          => 'text',
        'class'         => array('my-field-class form-row-wide'),
        'required'      => true,
        'label'         => __('Expected Delivery Time'),
        'placeholder'   => __('Enter expected delivery time.'),
        ), $checkout->get_value( 'my_expected_time' ));*/

    woocommerce_form_field( 'site_contact_name', array(
        'type'          => 'text',
        'class'         => array('my-field-class form-row-wide'),
        'required'      => true,
        'label'         => __('Site Contact Person Name'),
        'placeholder'   => __('Enter site contact person name.'),
        ), $checkout->get_value( 'site_contact_name' ));    

    woocommerce_form_field( 'site_contact_phone', array(
        'type'          => 'tel',
        'class'         => array('my-field-class form-row-wide'),
        'required'      => true,
        'label'         => __('Site Contact Phone Number'),
        'placeholder'   => __('Enter site contact phone number.'),
        ), $checkout->get_value( 'site_contact_phone' ));       

}
        $fields['billing']['billing_city']['default'] = $_SESSION['cn'];
        add_filter( 'woocommerce_default_address_fields' , 'custom_override_default_address_fields' );
        function custom_override_default_address_fields( $address_fields ) {

            // we are changing here billing_state field to required
            $fields['billing']['billing_state']['required'] = true;

            return $address_fields;
        }
        /*$fields['billing']['my_field_name']['default'] = $check_zoneid['area_name'];
        $fields['billing']['my_field_name']['label'] = 'Area';*/

        return $fields;
        }
 ?>      

Vielen Dan