New to Codeigniter need help

Well I've had some experience with php. but my problem is probably in the routing part i have followed the tutorial for the news pages but now i am trying to make the edit page. I do all this in a panel where you need to be logged in to be able to create or edit a news item.

First i load all the posts in a list:

PHP Code:

Code:

   public function newslist() {
        // If not logged in kick out
        if($this->session->userdata('logged_in')) {
           
            // Get session username
            $session_data = $this->session->userdata('logged_in');
            $data['username'] = $session_data['username'];

            // Get data from model
            $data['news'] = $this->news_model->list_news();

            // Load views
            $this->load->view('templates/header-side', $data);
            $this->load->view('panel/newslist', $data);
        }
        else {
            //If no session, redirect to login page
            redirect('login', 'refresh');
        }
    } 

I display this in a foreach where i show all the posts in me newslist.php in the view folder/panel/newslist.php

Code:

Code:

<?php foreach ($news as $news_item): ?>
    <div class="news-item-hld">
        <a href="<?php echo site_url('panel/viewitem/'. $news_item['id']); ?>">
            <div class="news-item">
                <div class="news-item-title">
                    <h3><?php echo $news_item['title']; ?></h3>
                </div>

            </div>
        </a>
    </div>
<?php endforeach;

Now if u click on an item in this list you go to the viewitem.php where u load he post by id

PHP Code:

Code:

   public function viewitem($id) {
        // If not logged in kick out
        if($this->session->userdata('logged_in')) {

            // Get session username
            $session_data = $this->session->userdata('logged_in');
            $data['username'] = $session_data['username'];      

            // Get data from model
            $data['news_item'] = $this->news_model->list_news($id);

            if (empty($data['news_item'])) {
                show_404();
            }
            // Load views
            $this->load->view('templates/header-side', $data);
            $this->load->view('panel/viewitem', $data);
        }
        else {
            //If no session, redirect to login page
            redirect('login', 'refresh');
        }
    } 

Now you get the screen where u can edit the item 

Code:

Code:

    <div class="create-news">
        <div class="create-news-inner">
            <?php echo validation_errors(); ?>
            <?php echo form_open(site_url('panel/update/'. $news_item['id'])) ?>
                <input class="create-news-input" placeholder="Title" type="input" name="title" value="<?php echo $news_item['title'];?>" />
                <input class="create-news-input" placeholder="Img url" type="input" name="url" value="<?php echo $news_item['url'];?>" />
                
                <textarea class="create-news-textarea" placeholder="Message" name="text"><?php echo $news_item['text'];?></textarea>    

                <input class="create-news-btn" type="submit" value="Post"/>
            <?php echo form_close(); ?>                 
        </div>
    </div>

if you click the submut button it uses the function update but this is where it goes wrong and i do not know why

PHP Code:

Code:

   public function update($id) {
        if($this->session->userdata('logged_in')) {

            // Set form validations
            $this->form_validation->set_rules('title','Title','required');
            $this->form_validation->set_rules('url','url','required');
            $this->form_validation->set_rules('text','text','required');
            
            // If form validation is valid
            if($this->form_validation->run())
            {
                $data['success'] = $this->news_model->update_news($id);
            }
            
            // Get data from model
            $data['news_item'] = $this->news_model->get_news($id);

            if(empty($data['news_item']))
            {
                show_404();
            }
            
            // Redirect
            redirect('panel/newslist', 'refresh');
        }
        else {
            //If no session, redirect to login page
            redirect('login', 'refresh');
        }
    } 

And these are my routes

PHP Code:

Code:

$route['news/create'] = 'news/create';
$route['contact'] = 'contact';

$route['login'] = 'login';
$route['panel'] = 'panel';
$route['panel/update'] = 'panel/update';
$route['panel/update/(:any)'] = 'panel/update/$1';

$route['news/(:any)'] = 'news/view/$1';
$route['news'] = 'news';

But when i click update it shows me the 404 page.