Login(controller)

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Login extends CI_Controller {

	public function index()
	{
		$this->load->view('form_login');
	}

	public function log() {
		$this->load->library('form_validation');
		$this->form_validation->set_rules('username','UserName','trim|required');
		$this->form_validation->set_rules('password','Password','trim|required|md5');
		if($this->form_validation->run() == False){
			$this->index();
		}else{
			if($this->session->userdata('level') == 'admin'){
				redirect ('admin/dashboard');
			} else if($this->session->userdata('level') == 'user'){
				redirect ('user/dashboard');
			}
		}
	}

	public function check_user_login(){
		$username = $this->input->post('username');
		$password = $this->input->post('password');
		$this->load->model('model_user');
		$result = $this->model_user->is_logged_in($username,$password);
		if($result){
			foreach ($result as $user){
				$s = array();
				$s['id']			= $user->UserID;
				$s['username']		= $user->UserName;
				$s['password']		= $user->UserPassword;
				$s['level']			= $user->Level;
				$this->session->set_userdata($s);
			}
		} else {
			$this->form_validation->set_message('check_user_login','Maaf username dan password anda salah, silahkan dicek kembali');
			return false;
		}
	}

	public function logout(){
		$this->session->sess_destroy();
		redirect('Login/index');
	}
}