Pagination-URI in Codeigniter 4 - php

Question

I began writing a webapp in Codigniter 4 and currently, i'm stuck with the pagination.
I created a controller, a model an a view to retrieve database entries für usergroups and used CI's built-in pagination-library.
UsergroupsModel:
<?php namespace App\Models;
use CodeIgniter\Model;
class UsergroupsModel extends Model{
protected $table = 'roles';
protected $allowedFields = [];
protected $beforeInsert = ['beforeInsert'];
protected $beforeUpdate = ['beforeUpdate'];
public function getGroups(){
$db = \Config\Database::connect();
$builder = $db->table('roles');
$query = $builder->get();
$results = $query->getResultArray();
return $results;
}
}
Controller (Usergroups):
<?php namespace App\Controllers;
use App\Models\UsergroupsModel;
class Usergroups extends BaseController
{
public function index()
{
//Helper laden
helper(['form','template','userrights']);
$data = [];
$data['template'] = get_template();
$data['info'] = [
"active" => "menu_dash",
"title" => "Dashboard",
"icon" => "fab fa-fort-awesome fa-lg",
"sub" => "Frontend",
];
//Check Permissions
$data['userrights'] = get_userrights(session()->get('id'));
if($data['userrights'][1] == 1)
{
foreach($data['userrights'] as $key => $value){
$data['userrights'][$key] = '1';
}
}
else
{
$data['userrights'] = $data['userrights'];
}
$model = new UsergroupsModel;
$model->getGroups();
$pager = \Config\Services::pager();
$data['usergroups'] = $model->paginate(5);
$data['pager'] = $model->pager;
//Create Views
echo view($data['template'].'/templates/header', $data);
echo view($data['template'].'/backend/navigation');
echo view($data['template'].'/templates/sidebar');
echo view($data['template'].'/backend/usergroups');
echo view($data['template'].'/templates/footer');
}
//--------------------------------------------------------------------
}
In the view, i got my pagination by using
<?= $pager->links() ?>
The default pagination works fine, but i get an URI like https://DOMAIN.DE/usergroups?page=2
In the official Codeigniter 4 docs for the pagination, you can find the following:
Specifying the URI Segment for Page
It is also possible to use a URI segment for the page number, instead of the page query parameter. >Simply specify the segment number to use as the fourth argument. URIs generated by the pager would then >look like https://domain.tld/model/[pageNumber] instead of https://domain.tld/model?page=[pageNumber].:
::
$users = $userModel->paginate(10, ‘group1’, null, 3);
Please note: $segment value cannot be greater than the number of URI segments plus 1.
So in my controller i changed
$data['usergroups'] = $model->paginate(5);
to
$data['usergroups'] = $model->paginate(5,'test',0,2);
and in the view i added 'test' as a parameter.
<?= $pager->links('test') ?>
In the Routes i added
$routes->get('usergroups/(:num)', 'Usergroups::index/$1');
and in the Controller i changed the index-function to
public function index($segment = null)
The URIs generated from the pagination now look like this:
https://DOMAIN.DE/usergroups/2
but it does not change anything in the entries and the pagination itself alway sticks to page 1.
I think, i can not use CI's built in library when switching to segment-URIs and thus i need to create a manual pagination.
Can somebody help me to fix this problem?

Answer 1

I currently had the same problem using segments in my pagination.
After much research I discovered that when you use segments associated with a group name in your case "test" you must assign the segment to the variable $ pager
$pager->setSegment(2, 'nameOfGroup');
You only need to change the first parameter with the segment number that you are using and the second with the name of the group that you are assigning.

Answer 2

It seems like there's a bug in Version 4.0.3. so it can't work out of the box. But i found a way to solve it:
The index-function needs to look like this:
public function index($page = 1)
and
within the Controller, the $data['usergroups'] need to look like this:
$data['usergroups'] = $model->paginate(5, 'test', $page, 2);
with 2 being the segment of the page-number in the URI.
Works like a charm.