flexi auth - A user authentication library for CodeIgniter

[eluser]NotSmilie[/eluser]
Hi,
So I decided to put it to the test, and it seems to work great

My add function creates a new user:

Code:

function add(){
        if(!empty($_POST)){
            $user_data = array(
                'uacc_credits' => '0'
            );
            $group_id = 1;
            $data['res'] = $this->flexi_auth->insert_user($_POST['uacc_email'], $_POST['uacc_username'], $_POST['uacc_password'], $user_data, $group_id, $_POST['uacc_active']);
            $data['message'] = (! isset($data['message'])) ? $this->session->flashdata('message') : $data['message'];
        }

        $data['page'] = 'user';
        $view = $this->load->view('user/create', $data, TRUE);
        $this->template->create_page('User', $view);
    }

My problem is about the messages. The function returns a bool, but as I can read, I can retrieve the exact message and the way I'm currently doing it appears to be wrong.

I want an error message if the creation fails, such as the email already exists, or was invalid, or username exists or is invalid etc..
How is this possible?