CodeIgniter pagination not working when clicking on a link

Question

probably this problem is really stupid but I tried lot of things and I always get the same error ...

As you can see, I'm trying to use Pagination in CodeIgniter and I can load a view with the pages and links but when I click on a link it says "Object not found!"

This is my Controller:

class Controller extends CI_Controller {

    public function __construct() {
        parent:: __construct();
        $this->load->helper("url");
        $this->load->model("Blogs_model");
        $this->load->library("pagination");
    }

    public function index() {
        $config = array();
        $config["base_url"] = base_url() . "pagination/";
        $config["total_rows"] = $this->Blogs_model->record_count();
        $config["per_page"] = 2;
        $config["uri_segment"] = 3;
        $config['first_link'] = 'First';
        $config['last_link'] = 'End';
        $config['next_link'] = 'Next →';
        $config['prev_link'] = '← Prev';

        $this->pagination->initialize($config);

        $page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
        $data["results"] = $this->Blogs_model->fetch_entries($config["per_page"], $page);
        $data["links"] = $this->pagination->create_links();

        $this->load->view("example1", $data);
    }
}

routes.php:

route['default_controller'] = "controller";
$route['pagination/(:any)'] = 'pagination';
$route['404_override'] = '';

config.php:

config['base_url']  = 'http://localhost/ci';

Could someone help me please? Thank you.

EDIT Thats my model:

class Blogs_model extends CI_Model {

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

    public function record_count() {
        return $this->db->count_all("entry");
    }

    public function fetch_entries($limit, $start) {
        $this->db->limit($limit, $start);
        $query = $this->db->get("entry");

        if ($query->num_rows() > 0) {
            foreach ($query->result() as $row) {
                $data[] = $row;
            }
            return $data;
        }
        return false;
    }
}

And the problem is that when I load the page: localhost/ci/ it works correctly, but when I click on a link the url changes to localhost/ci/pagination/2 and doesn't work. I guess its a problem of routes but anyway I'm not sure.

EDIT 2 Thanks for all the comments guys, finally I manage to get it working but with the Index.php active, I mean my url now is:

http://localhost/ci/index.php/controller/index/2 

and I would like to get it working without the index.php. My code right now is this: Controller:

class Controller extends CI_Controller {

    public function __construct() {
        parent:: __construct();
        $this->load->helper("url");
        $this->load->model("Blogs_model");
        $this->load->library("pagination");
    }

    public function index() {
        $config = array();
        $config["base_url"] = "http://localhost/ci/index.php/controller/index";
        $config["total_rows"] = $this->Blogs_model->record_count();
        $config["per_page"] = 2;

        $this->pagination->initialize($config);

        $data["results"] = $this->Blogs_model->fetch_entries($config["per_page"], $this->uri->segment(3));
        $data["links"] = $this->pagination->create_links();

        $this->load->view("example1", $data);
    }
}

And the base_url from the config.php is

http://localhost/ci;

Also the routes file now only has:

$route['default_controller'] = "controller";
$route['404_override'] = '';

Answer 1

Should look a little like this:

Routes File:

$route['blog/(:num)'] = "controller/index/$1";
$route['blog'] = "controller/index";

Controller:

public function index($page = 0) {
  $news = $this->blog_model->get_blog($page);
}

Model:

public function get_blog($page) {
  $offset = $page * 2;
  $stuff = $this->db->get('articles', $offset, 2);
}

Answer 2

Instead of this:

$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$data["results"] = $this->Blogs_model->fetch_entries($config["per_page"], $page);

Try this:

$page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
$offset = $page==0? 0: ($page-1)*$config["per_page"];
$data["results"] = $this->Blogs_model->fetch_entries($config["per_page"], $offset);

Unless your model is doing this work you need to pass the offset not the page.