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<?php
namespace Automattic\WooCommerce\Blocks\Domain\Services;
use WC_Customer;
use WC_Order;
/**
* Service class managing checkout fields and its related extensibility points on the frontend.
*/
class CheckoutFieldsFrontend {
/**
* Checkout field controller.
*
* @var CheckoutFields
*/
private $checkout_fields_controller;
/**
* Sets up core fields.
*
* @param CheckoutFields $checkout_fields_controller Instance of the checkout field controller.
*/
public function __construct( CheckoutFields $checkout_fields_controller ) {
$this->checkout_fields_controller = $checkout_fields_controller;
}
/**
* Initialize hooks. This is not run Store API requests.
*/
public function init() {
// Show custom checkout fields on the order details page.
add_action( 'woocommerce_order_details_after_customer_address', array( $this, 'render_order_address_fields' ), 10, 2 );
add_action( 'woocommerce_order_details_after_customer_details', array( $this, 'render_order_other_fields' ), 10 );
// Show custom checkout fields on the My Account page.
add_action( 'woocommerce_my_account_after_my_address', array( $this, 'render_address_fields' ), 10, 1 );
// Edit account form under my account (for contact details).
add_filter( 'woocommerce_save_account_details_required_fields', array( $this, 'edit_account_form_required_fields' ), 10, 1 );
add_filter( 'woocommerce_edit_account_form_fields', array( $this, 'edit_account_form_fields' ), 10, 1 );
add_action( 'woocommerce_save_account_details', array( $this, 'save_account_form_fields' ), 10, 1 );
// Edit address form under my account.
add_filter( 'woocommerce_address_to_edit', array( $this, 'edit_address_fields' ), 10, 2 );
add_action( 'woocommerce_after_save_address_validation', array( $this, 'save_address_fields' ), 10, 4 );
}
/**
* Render custom fields.
*
* @param array $fields List of additional fields with values.
* @return string
*/
protected function render_additional_fields( $fields ) {
return ! empty( $fields ) ? '<dl class="wc-block-components-additional-fields-list">' . implode( '', array_map( array( $this, 'render_additional_field' ), $fields ) ) . '</dl>' : '';
}
/**
* Render custom field.
*
* @param array $field An additional field and value.
* @return string
*/
protected function render_additional_field( $field ) {
return sprintf(
'<dt>%1$s</dt><dd>%2$s</dd>',
esc_html( $field['label'] ),
esc_html( $field['value'] )
);
}
/**
* Renders address fields on the order details page.
*
* @param string $address_type Type of address (billing or shipping).
* @param WC_Order $order Order object.
*/
public function render_order_address_fields( $address_type, $order ) {
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo $this->render_additional_fields( $this->checkout_fields_controller->get_order_additional_fields_with_values( $order, 'address', $address_type, 'view' ) );
}
/**
* Renders additional fields on the order details page.
*
* @param WC_Order $order Order object.
*/
public function render_order_other_fields( $order ) {
$fields = array_merge(
$this->checkout_fields_controller->get_order_additional_fields_with_values( $order, 'contact', 'other', 'view' ),
$this->checkout_fields_controller->get_order_additional_fields_with_values( $order, 'order', 'other', 'view' ),
);
if ( ! $fields ) {
return;
}
echo '<section class="wc-block-order-confirmation-additional-fields-wrapper">';
echo '<h2>' . esc_html__( 'Additional information', 'woocommerce' ) . '</h2>';
echo $this->render_additional_fields( $fields ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo '</section>';
}
/**
* Renders address fields on the account page.
*
* @param string $address_type Type of address (billing or shipping).
*/
public function render_address_fields( $address_type ) {
if ( ! in_array( $address_type, array( 'billing', 'shipping' ), true ) ) {
return;
}
$customer = new WC_Customer( get_current_user_id() );
$fields = $this->checkout_fields_controller->get_fields_for_location( 'address' );
if ( ! $fields || ! $customer ) {
return;
}
foreach ( $fields as $key => $field ) {
$value = $this->checkout_fields_controller->format_additional_field_value(
$this->checkout_fields_controller->get_field_from_object( $key, $customer, $address_type ),
$field
);
if ( ! $value ) {
continue;
}
printf( '<br><strong>%s</strong>: %s', wp_kses_post( $field['label'] ), wp_kses_post( $value ) );
}
}
/**
* Register required additional contact fields.
*
* @param array $fields Required fields.
* @return array
*/
public function edit_account_form_required_fields( $fields ) {
$additional_fields = $this->checkout_fields_controller->get_fields_for_location( 'contact' );
foreach ( $additional_fields as $key => $field ) {
if ( ! empty( $field['required'] ) ) {
$fields[ $key ] = $field['label'];
}
}
return $fields;
}
/**
* Adds additional contact fields to the My Account edit account form.
*/
public function edit_account_form_fields() {
$customer = new WC_Customer( get_current_user_id() );
$fields = $this->checkout_fields_controller->get_fields_for_location( 'contact' );
foreach ( $fields as $key => $field ) {
$field_key = CheckoutFields::get_group_key( 'other' ) . $key;
$form_field = $field;
$form_field['id'] = $field_key;
$form_field['value'] = $this->checkout_fields_controller->get_field_from_object( $key, $customer, 'contact' );
if ( 'select' === $field['type'] ) {
$form_field['options'] = array_column( $field['options'], 'label', 'value' );
}
if ( 'checkbox' === $field['type'] ) {
$form_field['checked_value'] = '1';
$form_field['unchecked_value'] = '0';
}
woocommerce_form_field( $key, $form_field, wc_get_post_data_by_key( $key, $form_field['value'] ) );
}
}
/**
* Validates and saves additional address fields to the customer object on the My Account page.
*
* Customer is not provided by this hook so we handle save here.
*
* @param integer $user_id User ID.
*/
public function save_account_form_fields( $user_id ) {
// phpcs:disable WordPress.Security.NonceVerification.Missing
$customer = new WC_Customer( $user_id );
$additional_fields = $this->checkout_fields_controller->get_fields_for_location( 'contact' );
$field_values = array();
foreach ( array_keys( $additional_fields ) as $key ) {
$post_key = CheckoutFields::get_group_key( 'other' ) . $key;
if ( ! isset( $_POST[ $post_key ] ) ) {
continue;
}
$field_value = $this->checkout_fields_controller->sanitize_field( $key, wc_clean( wp_unslash( $_POST[ $post_key ] ) ) );
$validation = $this->checkout_fields_controller->validate_field( $key, $field_value );
if ( is_wp_error( $validation ) && $validation->has_errors() ) {
wc_add_notice( $validation->get_error_message(), 'error' );
continue;
}
$field_values[ $key ] = $field_value;
}
// Persist individual additional fields to customer.
foreach ( $field_values as $key => $value ) {
$this->checkout_fields_controller->persist_field_for_customer( $key, $value, $customer, 'other' );
}
// Validate all fields for this location.
$location_validation = $this->checkout_fields_controller->validate_fields_for_location( $field_values, 'contact', 'other' );
if ( is_wp_error( $location_validation ) && $location_validation->has_errors() ) {
wc_add_notice( $location_validation->get_error_message(), 'error' );
}
// phpcs:enable WordPress.Security.NonceVerification.Missing
$customer->save();
}
/**
* Adds additional address fields to the My Account edit address form.
*
* @param array $address Address fields.
* @param string $address_type Type of address (billing or shipping).
* @return array Updated address fields.
*/
public function edit_address_fields( $address, $address_type ) {
$customer = new WC_Customer( get_current_user_id() );
$fields = $this->checkout_fields_controller->get_fields_for_location( 'address' );
foreach ( $fields as $key => $field ) {
$field_key = CheckoutFields::get_group_key( $address_type ) . $key;
$address[ $field_key ] = $field;
$address[ $field_key ]['value'] = $this->checkout_fields_controller->get_field_from_object( $key, $customer, $address_type );
if ( 'select' === $field['type'] ) {
$address[ $field_key ]['options'] = array_column( $field['options'], 'label', 'value' );
// If a placeholder is set, add a placeholder option if it doesn't exist already.
if (
! empty( $address[ $field_key ]['placeholder'] )
&& ! array_key_exists( '', $address[ $field_key ]['options'] )
) {
$address[ $field_key ]['options'] = array( '' => $address[ $field_key ]['placeholder'] ) + $address[ $field_key ]['options'];
}
}
if ( 'checkbox' === $field['type'] ) {
$address[ $field_key ]['checked_value'] = '1';
$address[ $field_key ]['unchecked_value'] = '0';
}
}
return $address;
}
/**
* For the My Account page, save address fields. This uses the Store API endpoint for saving addresses so
* extensibility hooks are consistent across the codebase.
*
* The caller saves the customer object if there are no errors. Nonces are checked before this method executes.
*
* @param integer $user_id User ID.
* @param string $address_type Type of address (billing or shipping).
* @param array $address Address fields.
* @param WC_Customer $customer Customer object.
*/
public function save_address_fields( $user_id, $address_type, $address, $customer ) {
// phpcs:disable WordPress.Security.NonceVerification.Missing
$additional_fields = $this->checkout_fields_controller->get_fields_for_location( 'address' );
$field_values = array();
foreach ( array_keys( $additional_fields ) as $key ) {
$post_key = CheckoutFields::get_group_key( $address_type ) . $key;
if ( ! isset( $_POST[ $post_key ] ) ) {
continue;
}
$field_value = $this->checkout_fields_controller->sanitize_field( $key, wc_clean( wp_unslash( $_POST[ $post_key ] ) ) );
$validation = $this->checkout_fields_controller->validate_field( $key, $field_value );
if ( is_wp_error( $validation ) && $validation->has_errors() ) {
wc_add_notice( $validation->get_error_message(), 'error' );
continue;
}
$field_values[ $key ] = $field_value;
}
// Persist individual additional fields to customer.
foreach ( $field_values as $key => $value ) {
$this->checkout_fields_controller->persist_field_for_customer( $key, $value, $customer, $address_type );
}
// Validate all fields for this location.
$location_validation = $this->checkout_fields_controller->validate_fields_for_location( array_merge( $address, $field_values ), 'address', $address_type );
if ( is_wp_error( $location_validation ) && $location_validation->has_errors() ) {
wc_add_notice( $location_validation->get_error_message(), 'error' );
}
// phpcs:enable WordPress.Security.NonceVerification.Missing
}
}
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