WooCommerce - Overriding billing state and post code on existing checkout fields - php

Question

I can't find the way to ovveride billing state and post code.
How can I edit the other parts of existing billing fields like billing state and post code?
This is what I have in the functions.php file in my child theme (I have included the code affecting the billing part):
<?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;
}
?>
Thanks

Answer 1

This is the complete way for billing state and billing post code override, keeping the billing selector with options.
Here is the code the fully functional and tested code:
Unsetting billing state and post code checkout fields
add_filter( 'woocommerce_checkout_fields' , 'partial_unsetting_checkout_fields' );
function partial_unsetting_checkout_fields( $fields ) {
unset($fields['billing']['billing_state']);
unset($fields['billing']['billing_postcode']);
return $fields;
}
Reinserting custom billing state and post code checkout fields
add_filter( 'woocommerce_default_address_fields' , 'art_override_default_address_fields' );
function art_override_default_address_fields( $address_fields ) {
// # for state
$address_fields['billing_state']['type'] = 'select';
$address_fields['billing_state']['class'] = array('form-row-wide');
$address_fields['billing_state']['required'] = true;
$address_fields['billing_state']['label'] = __('State', 'my_theme_slug');
$address_fields['billing_state']['placeholder'] = __('Enter state', 'my_theme_slug');
$address_fields['billing_state']['default'] ='Choice 1';
$address_fields['billing_state']['options'] = array(
'option_1' => 'Choice 1',
'option_2' => 'Choice 2',
'option_3' => 'Choice 3'
);
// # for postcode
$address_fields['billing_postcode']['type'] = 'text';
$address_fields['billing_postcode']['class'] = array('form-row-wide');
$address_fields['billing_postcode']['required'] = true;
$address_fields['billing_postcode']['label'] = __('Postcode', 'my_theme_slug');
$address_fields['billing_postcode']['placeholder'] = __('Enter your postcode', 'my_theme_slug');
return $address_fields;
}
Naturally this goes on function.php file of your active child theme or theme
Official reference: WooThemes - Customizing checkout fields using actions and filters
Note concerning the 'class' property
There is 2 ways to handle it:
The field is alone in one line (width 100%), you use: 'form-row-wide'
There is 2 fields side by side on the same line, you use:
'form-row-first' for the first field
'form-row-last' for the second field

Answer 2

//-------------------------- OVERRIDING BILLING STATE FIELD -------------------------------//
//Removing previous one by using unset
add_filter( 'woocommerce_checkout_fields' , 'custom_override_checkout_fields' );
// Our hooked in function - $fields is passed via the filter!
function custom_override_checkout_fields( $fields ) {
unset($fields['billing']['billing_state']);
return $fields;
}
add_filter( 'woocommerce_default_address_fields' , 'art_override_default_address_fields' );
function art_override_default_address_fields( $address_fields ) {
// # for state
$address_fields['Billing_State']['type'] = 'text';
$address_fields['Billing_State']['class'] = array('form-row-wide');
$address_fields['Billing_State']['required'] = true;
$address_fields['Billing_State']['label'] = __('State', 'my_theme_slug');
$address_fields['Billing_State']['placeholder'] = __('Enter state', 'my_theme_slug');
return $address_fields;
}