How to extend PagerRenderer and add additional methods

Hello, I'm trying to extend pagination of codeigniter4, so I can be able to use it with ajax.
If I add directly my custom method to CodeIgniter\Pager\PagerRenderer, they works fine. But I want to use them through Libraries directory.
So I can be able to use like this

PHP Code:

<?php 
namespace App\Libraries\Pagination;
use CodeIgniter\Pager\PagerRenderer;

class Pagination extends PagerRenderer
{
 
   public function __construct()
   {
       // parent::__construct();
   }
    
    // Get First Page Number 
    public function getFirstPageCounter(): int
    {
        if ($this->segment === 0){
            $firstPage = 1;
        }else{
            $firstPage = $this->segment;
        }
    
        return (int) $firstPage;
    }
    
    // get Last page Number
    public function getLastPageCounter()
    {
        if ($this->segment === 0){
            $last = $this->pageCount;
        }else{
            $last = $this->segment;
        }
        return (int)$last;
    }
    
    // Get previous Page number
    public function getPreviousPageCounter()
    {
        if (! $this->hasPrevious()){
            return null;
        }
    
        if ($this->segment === 0){
            $previous = $this->first - 1;
        }else{
            $previous = $this->segment;
        }
    
        return (int) $previous;
    }
    
    // get Next Page Number
    public function getNextPageCounter()
    {
        if (! $this->hasNext()){
            return null;
        }
    
        if ($this->segment === 0){
            $next = $this->last + 1;
        }else{
            $next = $this->last + 1;
        }
        return (int) $next;
    }
}

//nav templates links 


//html navigation template

PHP Code:

<?php if ($pager->hasNext()) : ?>
<li>
<a href="<?= $pager->getNext()?>" data-page="<?= $pager->getNextPageCounter() ?>">
</a>
</li>
<li>
<a href="<?= $pager->getLast()?>  data-page="<?= $pager->getPreviousPageCounter() ?>">
</a>
</li>
<?php endif ?>

Thanks in advance.

It seems there is no way to replace the PagerRenderer class.
It is hard coded:
https://github.com/codeigniter4/CodeIgni...r.php#L123

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

You could do it like this:
1. Extend the Pager class to use your PagerRenderer.
2. Replace the Pager class. See https://codeigniter4.github.io/CodeIgnit...re-classes

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

i extend HttpIncoing Class you follow patern to  extend pageRender
see my codes

PHP Code:

<?php


namespace Modules\Auth\Interfaces;


use CodeIgniter\HTTP\RequestInterface;

/**
 * Expected behavior of a Security.
 */
interface RequestWithUserInterface extends RequestInterface
{
    public function setUser(object $userData);

    public function getUserVar(string $key): string;

    public function getUser(): object;

} 


PHP Code:

<?php

namespace Modules\Auth\Libraries;

use CodeIgniter\HTTP\IncomingRequest;
use Modules\Auth\Interfaces\RequestWithUserInterface;


class  RequestWithUser extends IncomingRequest implements RequestWithUserInterface
{
    protected object $userData;
    protected array $serviceEvent;

    public function __construct($config, $uri, $body, $userAgent)
    {
        parent::__construct($config, $uri, $body, $userAgent);
        $this->userData = (object)[];
    }

    public function setUser(object $userData)
    {
        $this->userData = $userData;
    }

    public function getUser(): object
    {
        return $this->userData;
    }

    public function getUserVar(string $key): string
    {
        if (isset($this->userData->$key)) {
            return $this->userData->$key;
        }

        return '';

    }


} 


PHP Code:

<?php namespace Modules\Auth\Config;


use CodeIgniter\HTTP\UserAgent;
use Config\App;
use Config\Services as AppServices;
use Config\Services as BaseService;
use Modules\Auth\Libraries\RequestWithUser;
use Modules\Auth\Services\AuthService;
use Modules\Auth\Services\GroupsPermissionService;
use Modules\Auth\Services\PermissionService;
use Modules\Auth\Services\RoleRouteService;
use Modules\Auth\Services\GroupService;
use Modules\Auth\Services\UsersPermissionService;

class Services extends BaseService
{
    //--------------------------------------------------------------------

    /**
    * The Request class models an HTTP request.
    *
    * @param App|null $config
    * @param boolean $getShared
    *
    * @return RequestWithUser
    */
    public static function requestWithUser(App $config = null, bool $getShared = true)
    {
        if ($getShared) {
            return static::getSharedInstance('requestWithUser', $config);
        }

        $config = $config ?? config('App');;
        return new RequestWithUser(
            $config,
            AppServices::uri(),
            'php://input',
            new UserAgent()
        );
    }

    //--------------------------------------------------------------------
} 


PHP Code:

<?php

namespace Modules\Shared\Controllers;

/**
 * Class BaseController
 *
 * BaseController provides a convenient place for loading components
 * and performing functions that are needed by all your controllers.
 * Extend this class in any new controllers:
 *    class Home extends BaseController
 *
 * For security be sure to declare any new methods as protected or private.
 *
 * @package CodeIgniter
 */


use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\RESTful\ResourceController;
use Modules\Auth\Config\Services;
use Myth\Auth\AuthTrait;
use Psr\Log\LoggerInterface;
use  Modules\Shared\Interfaces\UrlQueryParamInterface;
use  Modules\Shared\Libraries\UrlQueryParam;

class ApiController extends ResourceController
{
    use AuthTrait;

    protected $format = "";
    public object $userObject;
    public UrlQueryParamInterface $urlQueryParam;

    /**
    * An array of helpers to be loaded automatically upon
    * class instantiation. These helpers will be available
    * to all other controllers that extend BaseController.
    *
    * @var array
    */
    protected $helpers = [
        'cookie',
        'url',
        'from',
        'filesystem',
        'text',
        'shared'
    ];

    /**
    * Constructor.
    *
    * @param RequestInterface $request
    * @param ResponseInterface $response
    * @param LoggerInterface $logger
    */


    /**
    * @var string
    * Holds the session instance
    */
    protected $session;

    public function __construct()
    {

        $this->userObject = (object)[];
    }

    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
    {
        // Do Not Edit This Line
        parent::initController($request, $response, $logger);


        $this->urlQueryParam = new UrlQueryParam();
        $this->urlQueryParam->initParameters($request);
        $requestWithUser = Services::requestWithUser();
        $this->userObject = $requestWithUser->getUser();

    }

} 


---

easy peasy extend ci core

Enlightenment  Is  Freedom

I use the solution of Kenjis and it works really well.