Two lots of pagination with codeigniter on one page - codeigniter

Question

I have to lots of paginations one lot is for my user's results and the other is for my question results.
When I am on link 3 on my question results it also switches the results on users list pagination.
Question if I click on the questions pagination links how can I make sure it does not affect the results of the user's list.
I have tried this Best way to do multiple pagination on one page in codeigniter does not work
As you can see in image below because I am on questions list page 3 it has effected the users list
<?php
class Dashboard extends MY_Controller {
public $data = array();
public function __construct() {
parent::__construct();
$this->load->model('user/user_model');
$this->load->model('forum/question_model');
$this->load->library('pagination');
}
public function index() {
$this->data['title'] = 'Dashboard';
$this->data['is_logged'] = $this->session->userdata('is_logged');
$config1['base_url'] = base_url('dashboard/');
$config1['total_rows'] = $this->user_model->total_users();
$config1['per_page'] = 2;
$config1['uri_segment'] = 2;
$config1['num_links'] = 200;
$config1['use_page_numbers'] = FALSE;
$config1['prefix'] = 'u_';
$pagination1 = new CI_Pagination();
$pagination1->initialize($config1);
$this->data['pagination1'] = $pagination1->create_links();
$page_segment1 = explode('_', $this->uri->segment(2));
$page1 = ($this->uri->segment(2)) ? $page_segment1[1] : 0;
$this->data['users'] = array();
$users = $this->user_model->get_users($config1['per_page'], $page1);
foreach ($users as $user) {
$this->data['users'][] = array(
'user_id' => $user['user_id'],
'username' => $user['username'],
'status' => ($user['status']) ? 'Enabled' : 'Disabled',
'warning' => '0' . '%',
'date' => date('d-m-Y H:i:s A', $user['date_created_on']),
'href' => site_url('user/profile/') . $user['user_id']
);
}
// Questions Pagination & Results
$config2['base_url'] = base_url('dashboard/');
$config2['total_rows'] = $this->question_model->total_questions();
$config2['per_page'] = 2;
$config2['uri_segment'] = 2;
$config2['num_links'] = 200;
$config2['use_page_numbers'] = FALSE;
$config2['prefix'] = 'q_';
$pagination2 = new CI_Pagination();
$pagination2->initialize($config2);
$this->data['pagination2'] = $pagination2->create_links();
$page_segment2 = explode('_', $this->uri->segment(2));
$page2 = ($this->uri->segment(2)) ? $page_segment2[1] : 0;
$this->data['questions'] = array();
$questions = $this->question_model->get_questions($config2['per_page'], $page2);
foreach ($questions as $question) {
$this->data['questions'][] = array(
'user_id' => $question['user_id'],
'title' => $question['title']
);
}
$this->data['navbar'] = $this->load->view('common/navbar', $this->data, TRUE);
$this->data['header'] = $this->load->view('common/header', $this->data, TRUE);
$this->data['footer'] = $this->load->view('common/footer', '', TRUE);
$this->load->view('common/dashboard', $this->data);
}
}
Question Model
<?php
class Question_model extends CI_Model {
public function get_questions($limit, $start) {
$this->db->select('*');
$this->db->from('questions q');
$this->db->join('users u', 'u.user_id = q.user_id', 'left');
$this->db->limit($limit, $start);
$query = $this->db->get();
return $query->result_array();
}
public function total_questions() {
return $this->db->count_all("questions");
}
}
Users Model
<?php
class User_model extends CI_Model {
public function get_users($limit, $start) {
$this->db->select('u.status, u.date_created_on, ud.*');
$this->db->from('users u', 'left');
$this->db->join('users_userdata ud', 'ud.user_id = u.user_id', 'left');
$this->db->limit($limit, $start);
$query = $this->db->get();
return $query->result_array();
}
public function total_users() {
return $this->db->count_all("users");
}
}