Undefined property: Index::$session - php

Question

How Can I Solve the issue When I am running this code I am getting the following error I have already loaded session library still i am getting this error
This is my controller
public function __construct(){
parent::__construct();
}
public function index() {
$this->load->database();
$this->load->helper('form', 'url');
$this->load->library('session');
}
public function process() {
$this->load->model('login_model');
$result = $this->login_model->validate();
if (!$result) {
$msg = '<font color=red>Invalid username and/or password.</font><br />';
$this->load->view(base_url().'index',$msg);
} else {
if ($_SESSION['utype'] == 2 || $_SESSION['utype'] == 1) {
redirect(base_url() . 'admin/dashboard');
}
if ($_SESSION['utype'] == 3 && !empty($_POST['urlValue'])) {
redirect($_POST['urlValue']);
}
if (empty($_POST['urlValue'])) {
redirect('/');
}
}
}
This is my model
public function validate() {
$username = $this->security->xss_clean($this->input->post('email'));
$password = $this->security->xss_clean($this->input->post('password'));
$pwd = base64_encode($password);
$this->db->where('email', $username);
$this->db->where('password', $pwd);
$query = $this->db->get('adduser');
$row = $query->row();
if (count($row) > 0) {
$row = $query->row();
$data = array(
'uid' => $row->id,
'uname' => $row->firstname,
'utype' => $row->usertype,
'uemail' => $row->email,
'validated' => true
);
$this->session->set_userdata($data);
return $row;
}
return $row;
}
I am getting this problem:
Severity: Notice
Message: Undefined property: Index::$session
Filename: core/Model.php
Line Number: 77
Backtrace:
File: D:\xampp\htdocs\savepaise\application\models\Login_model.php
Line: 42
Function: __get
File: D:\xampp\htdocs\savepaise\application\controllers\Index.php
Line: 31
Function: validate
File: D:\xampp\htdocs\savepaise\index.php
Line: 315
Function: require_once
Fatal error: Call to a member function set_userdata() on a non-object in
D:\xampp\htdocs\savepaise\application\models\Login_model.php on line 42
A PHP Error was encountered
Severity: Error
Message: Call to a member function set_userdata() on a non-object
Filename: models/Login_model.php
Line Number: 42

Answer 1

I think you need to load all library inside the controller constructor function not only in index function
public function __construct(){
parent::__construct();
$this->load->database();
$this->load->helper('form', 'url');
$this->load->library('session');
}
Update 1 : you can use autoload like this
Go to applications/config/autoload.php and in there you can edit what you need.
They are in arrays and seperated by packages, libraries, helpers, config, languages and models.
Example
$autoload['libraries'] = array('database', 'session');
$autoload['helper'] = array('url', 'html', 'form');