<?php defined('SYSPATH') or die('No direct script access.');

abstract class Controller_Template_Auth extends Controller_Template_Ajax {

    public $template = 'template';
    public $user;
    protected $auth;

    public function before()
    {
        $this->auth = Auth::instance();

        $this->user = $this->auth->get_user();

        parent::before();
        if ( ! $this->user)
        {
            switch(strtolower($this->request->action)) {
                case 'login':
                case 'logout':
                    break;
                default :
                    $this->request->redirect('auth/login');
                    break;
            }
        }
        else
        {
            $this->request->redirect('investors');
        }
    }

    public function after()
    {

    }
} // End Controller_Template_Auth

===================================================================

<?php defined('SYSPATH') or die('No direct script access.');

class Controller_Auth extends Controller_Template_Auth
{

    // Main base template
    public $template = 'template';

    public $auth_required = FALSE;

    /**
     * Index
     */
    public function action_index()
    {
        // Just redirect to login page
        $this->request->redirect('auth/login');
    }

    /**
     * Login
     */
    public function action_login()
    {
        echo 'in auth login';exit;
        // If a user lands on this page, assume he wants to do a fresh login
        Auth::instance()->logout();

        $post = $_POST;

        // Load the login page
        $this->template->title = 'Login';
        $this->template->content = View::factory('auth/login')
            ->bind('user', $user)
            ->bind('errors', $errors)
            ->bind('post', $post);

        //if the user is trying to login
        if ($_POST)
        {
            // did the user check the Remember Checkbox?
            $remember = isset($_POST['remember']);

            // Use Auth to login the user
            Auth::instance()->login($_POST['username'], $_POST['password'], $remember);
            if ( ! Auth::instance()->logged_in() )
            {
                $errors = array('Login failed.  Please use a valid username and password.');
                return;
            }

            //go to the home page if successful
            $this->request->redirect('investors/profile');
        }
    }


    /**
     * Logout
     */
    public function action_logout()
    {
        // If a user lands on this page, assume he wants to do a fresh login
        Auth::instance()->logout();
        Cookie::delete('user');

        // Load the login page
        $this->template->title = 'Logout';
        $this->template->content = View::factory('auth/logout')
            ->bind('user', $user)
            ->bind('errors', $errors);
    }

    /**
     * Register
     *
     * This method assumes that the person is registering to gain access to the site so
     * at the minimum, they need to provide 3 things:  USERNAME, PASSWORD, EMAIL address
     * and everything else are optional (for now)
     *
     */
    public function action_register()
    {
        // If we are processing a new registration (somehow a user gets to this page)
        // we need to log them out first
        Auth::instance()->logout();

        // Instantiate some objects
        $user = Sprig::factory('user');

        // Load the view
        $this->template->content = View::factory('auth/register')
            ->bind('user', $user)
            ->bind('errors', $errors);

        // If there is a post and $_POST is not empty
        if ($_POST)
        {
            try
            {
                // TODO: Sanitize values coming in
                $user->values($_POST);

                // Add the login role to the user
                $user->values(array(
                    'roles' => Sprig::factory('role', array('name' => 'login'))->load()->id,
                ));
echo 'before save';
                // Create the user
                $user->create();
echo 'after save';exit;
                // Sign the user in
                Auth::instance()->login($_POST['username'], $_POST['password']);

                // redirect to the user account
                Request::instance()->redirect('investors/profile');

            }
            catch (Validate_Exception $e)
            {
                $errors = $e->array->errors('validate');
            }

        }
    }
}

==========================================================================

<?php defined('SYSPATH') or die('No direct script access.');

abstract class Controller_Template_Ajax extends Controller_Template {

    protected $_ajax = FALSE;

    public function before()
    {
        // Open remote URLs in a new window
        html::$windowed_urls = TRUE;

        parent::before();

        $this->template->title =
        $this->template->content = '';

        if (Request::$is_ajax OR $this->request !== Request::instance())
        {
            // This is an AJAX-like request
            $this->_ajax = TRUE;
        }
    }

    public function after()
    {
        if ($this->_ajax === TRUE)
        {
            // Use the template content as the response
            $this->request->response = $this->template->content;
        }
        else
        {
            parent::after();
        }
    }

} // End Controller_Template_Ajax