/* login logic: */

    public function action_signin()
    {
        $this->init();
        $page = View::factory('main/signin');

        if ($_POST)
        {
            $user = ORM::factory('user');
//          if ($user->login($_POST))
//          if (Auth::login($_POST['username'], $_POST['password'], isset($_POST['remember'])))

echo "username: ".$_POST['username']."<br>";
echo "password: ".$_POST['password']."<br>";
if (isset($_POST['remember'])) var_dump($_POST['remember']);

            if (Auth::instance()->login($_POST['username'], $_POST['password'], isset($_POST['remember'])))
            {
                if ($user->has('roles', ORM::factory('role', array('name' => 'admin'))))
                {
                    echo "redirect yourself to admin.<br>";
                    exit;
                    $this->request->redirect('admin');
                }
                else
                {
                    echo "inside Controller_Main action_signin(). This user did not have any roles set to redirect, sooo you should make one :)<br>";
//                  $page->status = "yew logged in! :D";
//                  $this->init();
                }
            }
            else
            {
                $page->status = "Username or password is incorrect, or your login privileges have been suspended.";
//              $this->template->content = $_POST->errors('signin');
//              print_r($_POST);
            }
        }


/* overloaded user model */

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

class Model_User extends Model_Auth_User {

    public $primary_contact;

    public function __construct($id = NULL)
    {
        // additional relationships
        $this->_has_one['mod_by'] = array('model' => 'user', 'foreign_key' => 'mod_by_id');
        $this->_has_many['contacts'] = array();
        parent::__construct($id);

        // load primary contact
        if ($this->loaded())
        {
            $this->primary_contact = ORM::factory('contact')->where('user_id', '=', $this->id)->and_where('type', '=', 'PRIMARY')->find();
        }
        else
        {
            $this->primary_contact = ORM::factory('contact');
        }
    }

    // from () to (Validation $validation = NULL)
    public function save(Validation $validation = NULL)
    {
        if (! $this->loaded())
        {
            $this->date_created = date('Y-m-d H:i:s');
        }

        $current_user = Auth::instance()->get_user();

        if ($current_user)
        {
            $this->date_modified = date('Y-m-d H:i:s');
            $this->mod_by_id = $current_user->id;
        }
        parent::save($validation);
    }

} // End User Model

/* inside auth config file */

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

return array(

    'driver'       => 'orm',
    'hash_method'  => 'sha256',
    'hash_key'     => 'FA23',
    'lifetime'     => 1209600,
    'session_key'  => 'auth_user',

    // Username/password combinations for the Auth File driver
    'users' => array(
        // 'admin' => 'b3154acf3a344170077d11bdb5fff31532f679a1919e716a02',
    ),

);


/* inside post processor */
            if (isset($_POST['save']))
            {
                $user = ORM::factory('user', $_POST['id']);
                $user->email = $_POST['email'];
                $user->username = $_POST['username'];

                if ($user->loaded())
                {
                    $user->save();

                    // remove all previous roles (they will be re-added after this if statement)
                    foreach ($user->roles->find_all() as $role)
                    {
                        $user->remove('roles', ORM::factory('role', $role));
                    }
                }
                else
                {
                    $user->password = $_POST['password'];
                    $user->save();
                }

                // user roles
                foreach ($_POST['roles'] as $role_id)
                {
                    $user->add('roles', ORM::factory('role', $role_id));
                }

                // update/add PRIMARY contact
                $contact = ORM::factory('contact', $_POST['contact_id']);
                $contact->ProcessPost($_POST);
                $contact->user_id = $user->id;
                $contact->save();

                // set ID so we are still viewing this user
                $id = $user->id;
                $user_list = ORM::factory('user')->find_all()->as_array('id', 'username');
            }