MasterClass/application/core/notification/Notification.php

<?php
namespace app\core\notification;

use app\core\utils\Cookie;

class Notification {

    protected $CI;
    const COOKIE_KEY = 'lmateliers_notif';

    public function __construct() {
        // Get CI Instnce
        $this->CI =& get_instance();

        // Load Model
        $this->CI->load->model('Notification_model');
    }

    public function setNotificationCookie($user_id) {
        Cookie::create([
            'name'   => 'notif',
            'value'  => json_encode(array(
                'user_id'=> $user_id,
            )),
            'expire' => '7200', //2days
            'prefix' => $this->CI->config->item('sess_cookie_name').'_',
            // 'domain' => 'localhost'
        ]);
    }
    
    public function getNotificationCookie() {
        $cookieData = json_decode(get_cookie(self::COOKIE_KEY));
        return $cookieData;
    }
    
    public function deleteNotificationCookie() {
        // Delete registration cookie
        Cookie::delete(self::COOKIE_KEY);
    }

    public function getNotifications() {
        
        return $this->CI->Notification_model->get_notifications();
    }

    
    public function updateNotification(int $id, array $data) {
        return $this->CI->Notification_model->update_notification($id, $data);
    }
}