Форма авторизации + база данных

<?php
 
class Form extends CI_Controller {
function table()
    {
        $this->load->database();
        $this->db->get('logined');
    }
 
    function index() {
        if ($this->session->userdata('isLoggedIn')) {
            redirect('/admin/edit');
        }
    $this->load->database();
    $query = $this->db->get('logined');
#   $this->load->library('session');
#   $this->session->set_userdata($array);
#$this->load->library('session'); 
#$newdata = array(
 #                  'username'  => 'Alekseygod',
 #                  'password'     => '12331',
 #                  'logged_in' => TRUE
 #              ); 
 #
#$this->session->set_userdata($newdata); 
#echo $session_id = $this->session->userdata('password'); 
 
        $this->load->helper(array('form', 'url'));
 
        $this->load->library('form_validation');
        $username=$this->input->post('username');
        $password=$this->input->post('password');
        $this->form_validation->set_rules('username', 'Имя пользователя', 'required|min_length[5]|max_length[12]');
         
        $this->form_validation->set_rules('password', 'Пароль', 'required|min_length[5]|max_length[120]');
         
        $results = $query->result_array();
        if (($this->form_validation->run() == true) and ($username == $results[0]['login'] && $password == $results[0]['password']))
        {
            $this->session->set_userdata('isLoggedIn', true);
            $this->load->database();
        $query = $this->db->get('rsl_table');
            redirect('/admin/edit');
        }
        else
        {
            $this->load->view('myform');  
        }
    }
     
    function logout()
    {
$this->session->sess_destroy();
redirect('/form');
}
     
}
?>

($username == $results[0]['login'] && $password == $results[0]['password']))