Question

I have Admin controller in codeigniter

class Admin extends CI_Controller {

function __construct() {

    parent::__construct();

    if (!$this->tank_auth->is_logged_in()) redirect('login');
    $this->load->library('pagination');

}

function index() {

    $offset = $this->uri->segment(2);
    $config['per_page'] = 3;
    $data['sitetitle'] = 'Výpis jobů';
    $data['listings'] = $this->Jobs_model->get_listings(0,$user_id = FALSE,$config['per_page'],$offset);
    $config['uri_segment'] = 2; 
    $config['base_url']     = base_url().'admin/';
    $config['total_rows']   = $this->db->count_all_results('jobs');


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

    $this->template->set('title', 'Domovská stránka');
    $this->template->load('template', 'site', $data);
}

}

and Jobs_model

function get_listings($category, $user_id = false, $limit = 0, $offset = 0) {

    $data = array();

    $this->db->order_by('id', 'desc');
    $q = $this->db->get('jobs');

    if ($category) {
        $options = array('category' => $category);
        $this->db->order_by('id', 'desc');
        $this->db->where('category', $category);
        $q = $this->db->get('jobs', $limit, $offset);
    }
    else {
        $query = $this->db->order_by('id', 'desc');
        if ($user_id) $query = $query->where('user_id', $user_id);
        $q = $query->get('jobs',$limit, $offset);
    }

    if ($q->num_rows() > 0) {
        foreach ($q->result_array() as $row) {
            $data[] = $row;
        }
    }

    $q->free_result();
    return $data;
}

first page in paginatiom obtain data, but links generating in pagination localhost/sitename/admin/3 produce 404 error.
Where is problem in my script

Answer 1

You need to change:

$config['base_url'] = base_url().'admin/';

To:

$config['base_url'] = base_url().'admin/index/';

If you need the url to be like admin/3, you can use a route or _remap.

Side note: consider using this to get your page number rather than the URI class:

function index($offset = 0) {
    // your code
}

It will do the same thing, but it’s convenient to use the controller method arguments when possible.