Codeigniter news tutorial view method not working - php

Question

Hey guys im learning codeigniter and im on the news tutorial. Im pretty much finished but my view method is showing 404 rather than the news itself. I've tried to debug with the following code
echo '<pre>';
var_dump($this->news_model->get_news($slug));
exit();
and that returns
NULL
heres how my controller works thats calling the method
<?php
class News extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->model('news_model');
}
public function index() {
//echo '<pre>';
//var_dump($this->news_model->get_news());
//exit();
$data['news'] = $this->news_model->get_news();
$data['title'] = 'News archive';
$this->load->view('templates/header',$data);
$this->load->view('news/index',$data);
$this->load->view('templates/footer');
}
public function view($slug) {
//echo '<pre>';
//var_dump($this->news_model->get_news($slug));
//exit();
$data['news'] = $this->news_model->get_news($slug);
if (empty($data['news_item'])) {
show_404();
}
$data['title'] = $data['news_item']['title'];
$this->load->view('templates/header',$data);
$this->load->view('news/view',$data);
$this->load->view('templates/footer');
}
}
im still a beginner so my debugging solutions are limited.

Answer 1

$data['news'] = $this->news_model->get_news($slug);
should be
$data['news_item'] = $this->news_model->get_news($slug);
according to the rest of your code.

Answer 2

don't use $slug, the tutorial $slug set true when you insert data from set_news but i don't understand why the attribute type varchar slug can save boolean type. Here the code to set variable $slug and all attribute to db. Here the code of controller news
public function set_news()
{
$this->load->helper('url');
$slug = url_title($this->input->post('title'), 'dash', TRUE);
$data = array(
'title' => $this->input->post('title'),
'slug' => $slug,
'text' => $this->input->post('text')
);
return $this->db->insert('news', $data);
}
edit the code of method view to
public function view($slug = NULL)
{
$data['news'] = $this->news_model->get_news();
//echo print_r($data['news_item']['0']['title'], true);
if (empty($data['news']))
{
show_404();
}
$data['title'] = $data['news']['0']['title'];
$this->load->view('templates/header', $data);
$this->load->view('news/view', $data);
$this->load->view('templates/footer');
}
and edit the views/news/view.php to
<?php foreach ($news as $news_item): ?>
<h3><?php echo $news_item['title']; ?></h3>
<div class="main">
<?php echo $news_item['text']; ?>
</div>
<p>View article</p><?php endforeach; ?>