Connecting CI 2.0.3 Models to a database

[eluser]Unknown[/eluser]
Hi, I'm having an issue using models in CI 2.0.3

My code is the following:

Controller class:

Code:

<?php
class Toot extends CI_Controller{

function __construct(){
  parent::__construct();
  
  $this->load->model('toot_model', '', TRUE);
}

function index(){
  $data['title'] = 'Welcome!!';
  
  $this->load->view('header', $data);
  $this->load->view('toot_view', $data);
  $this->load->view('footer');
}

function search(){
  $data['title'] = 'Search Results';
  
  $search_string = $this->input->post('search_string'); // Use any string here instead.
  
  $data['search_result'] = $this->toot_model->get_search_results($search_string);
  
  $this->load->view('header', $data);
  $this->load->view('search_view', $data);
  $this->load->view('footer');
}
}
?>

Model Code:

Code:

<?php
class Toot_model extends CI_Model{

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

function get_search_results($search_string){
  $this->load->database(); // Database is defined in 'Config/database.php'
  $this->db->like('city', $search_string);
  $result = $this->db->get('places');
}
}
?>

When I run the project and do search($search_string) i got the following error:
Fatal error: Call to a member function database() on a non-object in C:\xampp\htdocs\toot_project\application\models\toot_model.php on line 9
While if I copied toot_model.php to Controllers folder it works fine as a controller.

What is the problem then ??


NOTE:
I've tried to remove

Code:

$this->load->database();

but I got the following:
Fatal error: Call to a member function like() on a non-object in C:\xampp\htdocs\toot_project\application\models\toot_model.php on line 10



Config files attached.