Just playing around with some user authentication in Codeigniter - Work in progress!

Users_Model.php

class Users extends CI_Model {

        public function __construct()
	{
		parent::__construct();

	}

	public function getUser($user)
	{
		$query = $this->db
		->where('username', $user['username'])
		->where('password', $user['password'])
		->get('users');

		if($query->num_rows() > 0)
		{
			$user = $query->row();
			return $user;
		}
	}

}

Welcome_Controller.php

  class Welcome_controller extends CI_Controller {
  
  public function index()
        {
		$this->load->view('welcome');
	}

	public function dashboard()
	{
		// Bring in all POST data from the login form
		$user = $this->input->post(NULL, TRUE);

		// Run the query check if the username and
		// password exists and matches (returns TRUE
		// or FALSE), by passing it the POST data.
		// Assign that to the var $auth
		$auth = $this->users->getUser($user);

		// Pass $auth to the view
		$data['auth'] = $auth;
		// Display Users Name
		$data['name'] = $auth->name;

		// Check if $auth is TRUE or FALSE
		if($auth == TRUE)
		{
			// Set the users session, setting
			// their logged state to TRUE.
			$array = array(
				'logged_in' => 'TRUE'
			);
			$this->session->set_userdata( $array );

			// The user is authenticated and 'logged_in'
			// has been set in the session cookie, load
			// the view
			$this->load->view('dashboard', $data);
		}
		else
		{
			// If $auth is false, log in failed and the
			// user is redirected to the top of the
			// Welcome controller.
			redirect('welcome');
		}

	}

}