username auto-generated by billing complete name in WooCommerce registration

Question

So I\'ve added various custom fields to the registration page of my WooCommerce webshop as following:

/* ---------------------- Registration page -----------         


        

Answer 1

You should eed to use a custom function hooked in woocommerce_new_customer_data filter hook. The code below will replace the wrong and repetitive usernames (that you will set in an array) by the complete billing name:

add_filter( 'woocommerce_new_customer_data', 'custom_new_customer_data', 10, 1 );
function custom_new_customer_data( $new_customer_data ){

    // Complete HERE in this array the wrong usernames you want to replace (coma separated strings)
    $wrong_user_names = array( 'info', 'contact' );

    // get the first and last billing names
    if(isset($_POST['billing_first_name'])) $first_name = $_POST['billing_first_name'];
    if(isset($_POST['billing_last_name'])) $last_name = $_POST['billing_last_name'];

    // the customer billing complete name
    if( ! empty($first_name) || ! empty($last_name) )
        $complete_name = $first_name . ' ' . $last_name;

    // Replacing 'user_login' in the user data array, before data is inserted
    if( ! empty($complete_name) && ! in_array( complete_name, $wrong_user_names ) )
        $new_customer_data['user_login'] = sanitize_user( str_replace( ' ', '-', $complete_name ) );

    return $new_customer_data;
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

I haven't test this code, but it should work.

---

Here is a simpler version that will replace all usernames by the billing complete name.

add_filter( 'woocommerce_new_customer_data', 'custom_new_customer_data', 10, 1 );
function custom_new_customer_data( $new_customer_data ){

    // get the first and last billing names
    if(isset($_POST['billing_first_name'])) $first_name = $_POST['billing_first_name'];
    if(isset($_POST['billing_last_name'])) $last_name = $_POST['billing_last_name'];

    // the customer billing complete name
    if( ! empty($first_name) || ! empty($last_name) )
        $complete_name = $first_name . ' ' . $last_name;

    // Replacing 'user_login' in the user data array, before data is inserted
    if( ! empty($complete_name) )
        $new_customer_data['user_login'] = sanitize_user( str_replace( ' ', '-', $complete_name ) );

    return $new_customer_data;
}

Code goes in function.php file of your active child theme (or theme) or also in any plugin file.

I haven't test this code, but it should work.