Allow guest checkout for specific products only in WooCommerce - php

Question

The following code add a custom field to admin product settings to manage guest checkout at product level:
// Display Guest Checkout Field
add_action( 'woocommerce_product_options_general_product_data', 'woo_add_custom_general_fields' );
function woo_add_custom_general_fields() {
global $woocommerce, $post;
echo '<div class="options_group">';
// Checkbox
woocommerce_wp_checkbox( array(
'id' => '_allow_guest_checkout',
'wrapper_class' => 'show_if_simple',
'label' => __('Checkout', 'woocommerce' ),
'description' => __('Allow Guest Checkout', 'woocommerce' )
) );
echo '</div>';
}
// Save Guest Checkout Field
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save' );
function woo_add_custom_general_fields_save( $post_id ){
$woocommerce_checkbox = isset( $_POST['_allow_guest_checkout'] ) ? 'yes' : 'no';
update_post_meta( $post_id, '_allow_guest_checkout', $woocommerce_checkbox );
}
// Enable Guest Checkout on Certain products
add_filter( 'pre_option_woocommerce_enable_guest_checkout', 'enable_guest_checkout_based_on_product' );
function enable_guest_checkout_based_on_product( $value ) {
if ( WC()->cart ) {
$cart = WC()->cart->get_cart();
foreach ( $cart as $item ) {
if ( get_post_meta( $item['product_id'], '_allow_guest_checkout', true ) == 'yes' ) {
$value = "yes";
} else {
$value = "no";
break;
}
}
}
return $value;
}
But it doesn't work actually. What I am doing wrong? How can I fix it?
I am trying to allow guest purchases for specific products. The admin custom field display and save custom field value is working (the 2 first functions), But login/register never comes up on checkout page, even if there are products in cart that doesn't allow guest checkout.

Answer 1

The filter hook enable_guest_checkout_based_on_product doesn't exist anymore and has been replaced by another hook a bit different.
So your code is going to be:
add_filter( 'woocommerce_checkout_registration_required', 'change_tax_class_user_role', 900 );
function change_tax_class_user_role( $registration_required ) {
if ( ! WC()->cart->is_empty() ) {
$registration_required = false; // Initializing (allowing guest checkout by default)
// Loop through cart items
foreach ( WC()->cart->get_cart() as $item ) {
// Check if there is any item in cart that has not the option "Guest checkout allowed"
if ( get_post_meta( $item['product_id'], '_allow_guest_checkout', true ) !== 'yes' ) {
return true; // Found: Force checkout user registration and exit
}
}
}
return $registration_required;
}
Code goes in functions.php file of your active child theme (or active theme). It should works.
Related continuation: Redirection for non checkout guest allowed in WooCommerce