Codeigniter Pagination issue - php

Question

I am trying to get the pagination to work with codeigniter. But am getting the following errors
Severity: Notice
Message: Undefined offset: 0
Filename: controllers/group.php
And
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/group_list_view.php
Following is the code of my Model
public function get_list($userid)
{
$this->load->library('pagination');
$config['base_url'] = 'http://localhost/portal/index.php/group/index';
$config['total_rows'] =$this->db->where('UserId',$userid)->get('group')->num_rows();
$config['per_page'] = 10;
$config['num_links'] = 10;
$this->pagination->initialize($config);
$query['groups'] = $this->db->get('group', $config['per_page'], $this->uri->segment(3));
return $query;
}
Here is the code for my controller
class Group extends CI_Controller {
public function __constructor()
{
session_start();
parent::__constructor();
}
public function index()
{
if(!$this->session->userdata('userid'))
redirect('login');
$this->load->model('group_model');
$result = $this->group_model->get_list($this->session->userdata('$userid'));
//neither this works
data['groups'] = $result;
//nor this
$data['groups'] = $result[0];
$this->load->view('group_list_view', $data);
}
}
And this the code in view
foreach($groups as $group){
echo $group->GroupId;
}
Can anyone please guide me where am i doing it worng. Apparently no one else seems to have encountered any such problem. I followed the tutorial from net.tutsplus ditto but still facing the same issue. Please note i am new to PHP to be gentel :)

Answer 1

You need to write the code in controller not in model
public function index()
{
if(!$this->session->userdata('userid'))
redirect('login');
$this->load->library('pagination');
$config['base_url'] = 'http://localhost/portal/index.php/group/index';
$config['total_rows'] = // Use the same function to get the number of rows
$config['per_page'] = 10;
$config['num_links'] = 10;
$this->pagination->initialize($config);
$this->load->model('group_model');
$result = $this->group_model->get_list($this->session->userdata('$userid'));
data['groups'] = $result;
$this->load->view('group_list_view', $data);
}

Answer 2

Here:
$query['groups'] = $this->db->get('group', $config['per_page'], $this->uri->segment(3));
You're assing the query resultset to $query['group']
but in the controller you're doing
$data['groups'] = $result;
and then you iterate:
foreach($groups as $group){
You should be doing instead:
foreach($groups['groups'] as $group){
Since your original assignment in the model is to $query['groups'].
So, either you assing to $query in the model, or you iterate the correct array in the view (like I showed you above)