Codeigniter tutorial delete Post doesn't work - php

Question

After completing the tutorial from the codeigniter user guide I ran into a problem I was forcing for the last two hours. I am trying to add functionality to delete a post, selected by ID, I am new to PHP and couldn't find any solution for my problem:
The Controller
public function delete($id){
$id = $this->uri->segment(3);
$data['title'] = 'Delete an item';
if($this->news_model->delete_news($id)){
$this->load->view('templates/header', $data);
$this->load->view('news/success');
$this->load->view('templates/footer');
}else{
}
}
The Model
public function delete_news($id){
$this->db->where('id',$id)->delete('news');
return $this->db->affected_rows();
}
The Routing
$route['news/delete/(:num)'] = 'news/delete/$1';
I'm calling the function out of the index-page where all posts are shown with an anchor:
<p>Delete article</p>
and it calls the correct URL (http://localhost/webapp/index.php/news/delete/2) which should correctly execute and delete the post with the ID 2 from my news table.
I really can't understand where the mistake ism but by executing this, I get a 404.
What am I doing wrong?

Answer 1

In your function delete I don't see that you loaded the news_model. That could be the issue if it isn't auto-loading. Perhaps, start by verifying that the controller is talking to the model by inserting:
echo 'Hello Model';
in the delete_news function of your news_model.
EDIT:
Instead of
if($this->news_model->delete_news($id)){
//conditions
}
And
Have your model send a T/F based on it's execution. This will tell us if the error is in the SQL. By returning TRUE no matter what, we'll see if that model function even runs:
return TRUE;
Try to add the step (for error checking)
$del = $this->news_model->delete_news($id);
echo 'del';
if($del == TRUE){
//conditions
}
With the 404 - I'm also suspicious it's a routing issue. I'll take a look at that as well.