Updated User field displaying "Loading failed"

• ClI1

• November 15, 2017 at 12:33 pm

Hi,

I’ve been using ACF for a little while now and have been really impressed with how easy it has been to customize just about anything I want but this has really stumped me. I’d like to pre-populate a User field type with a user. I have it almost working with this:

add_filter('acf/load_field/name=user_access',
    function ($field) {
        $selector = 'user_access';
        global $post;
        $params = array(
            'site_url' => site_url(),
            'admin_ajax_url' => admin_url('admin-ajax.php'),
            'post_id' => $post->ID
        );
        $post_id = $params['post_id'];
        $users = get_field('user_field_name', $post_id, false);
        $users[] = 1;
        $field['default_value'] = $users;
        return $field;
    }
);

The problem is that when this code is included if I click on the User field it displays “Loading failed” with a red background instead of the expected behavior of displaying the available users that can be added.