Display custom column with custom user meta in woocommerce orders page

Garwinn :

in a bit of a quandary here. I've been trying for a couple of days now to get my data, that I collected from a custom field in woocommerce registration form to insert into user meta in database. The code for the form is:

//Addition of morello Account Number to reg page
add_action( 'woocommerce_register_form', 'add_register_form_field' );

function add_register_form_field(){

    woocommerce_form_field(
        'morello_account_number',
        array(
            'type'        => 'text',
            'required'    => true, // required field?
            'label'       => 'morello Account Number:'
        ),
        ( isset($_POST['morello_account_number']) ? $_POST['morello_account_number'] : '' )
    );

}
add_action( 'woocommerce_created_customer', 'save_register_fields' );

function save_register_fields( $customer_id ){

    if ( isset( $_POST['morello_account_number'] ) ) {
        update_user_meta( $customer_id, 'morello_account_number', wc_clean( $_POST['morello_account_number'] ) );
    }

}

Now I want to grab the data from the table and display it on the Order page of woocommerce in a separate column, so I can then see the morello number without having to search customer details manually. Here's my code so far for this:

/**
 * Add columns
 */
function morello_account_number_column( $columns ) {
    $columns['morello_account_number'] = "morello Account Number";
    return $columns;
}
add_filter('manage_edit-shop_order_columns', 'morello_account_number_column', 10, 1 );

/**
 * Populate columns
 */
function morello_placeholder( $column, $post_id ) {
    if( $column == 'morello_account_number' ) {
        // https://developer.wordpress.org/reference/functions/get_post_meta/
        $a_a_n = get_user_meta( $user_id, 'morello_account_number', true );

        // Value is found
        if ( !empty($a_a_n) ) {
            echo $a_a_n;    
        } else {
            echo 'something else';
        }
    }
}
add_filter( 'manage_shop_order_posts_custom_column', 'morello_placeholder', 10, 2 );

This works as intended, but keeps displaying the "something else" quote - the code creates the column in the correct place, but won't populate it with the morello_account_number. Am I missing something? Help would be hugely appreciated - thanks in advance.

7uc1f3r :

There are some errors in your code. Code that would work if used with the correct hook.

For example, you use 'backend' code in the 'frontend'.

Be aware that if you add a new field to the registration form, it is best to have this field returned in several places, so that the user can adjust it afterwards.

See: https://businessbloomer.com/woocommerce-add-select-field-account-register-form/

Part 3: Display Field @ User Profile (admin) and My Account Edit page (front end)

/**
 * Add morello account number to reg page
 */
function add_register_form_field() {
    ?>
    <p class="woocommerce-form-row woocommerce-form-row--wide form-row form-row-wide"> 
        <label for="reg_morello_account_number"><?php _e( 'Morello Account Number', 'woocommerce' ); ?> <span class="required">*</span></label> 
        <input type="text" class="woocommerce-Input woocommerce-Input--text input-text" name="morello_account_number" id="reg_morello_account_number" value="<?php if ( ! empty( $_POST['morello_account_number'] ) ) echo esc_attr( $_POST['morello_account_number'] ); ?>" /> 
    </p> 
    <?php
}
add_action( 'woocommerce_register_form', 'add_register_form_field' );

/**
 * Save morello account number
 */
function save_register_fields( $customer_id, $new_customer_data, $password_generated ) {
    if ( isset( $_POST['morello_account_number'] ) ) {
        update_user_meta( $customer_id, 'morello_account_number', wc_clean( $_POST['morello_account_number'] ) );
    }

}
add_action( 'woocommerce_created_customer', 'save_register_fields', 10 , 3 );

/**
 * Add columns
 */
function morello_account_number_column( $columns ) {
    $columns['morello_account_number'] = "morello Account Number";
    return $columns;
}
add_filter('manage_edit-shop_order_columns', 'morello_account_number_column', 10, 1 );

/**
 * Populate columns
 */
function morello_placeholder( $column, $post_id ) {
    $order = new WC_Order( $post_id );

    // Get user id
    $user_id = $order->get_user_id();

    if( $column == 'morello_account_number' ) {
        $a_a_n = get_user_meta( $user_id, 'morello_account_number', true );

        // Value is found
        if ( !empty($a_a_n) ) {
            echo $a_a_n;    
        } else {
            echo 'something else';
        }
    }
}
add_filter( 'manage_shop_order_posts_custom_column', 'morello_placeholder', 10, 2 );