Implementing pagination in codeigniter, can't get count - php

Question

I am having difficulties implementing the codeigniter pagination class. I have created my model, view and controller for getting my news articles and data is echoed in the view successfully.
My problem is that when I attempt to implement pagination it seems like I am unable to get the correct count of fields in my database. Can somebody show me what I have done wrong?
The pagination links display perfectly, but the content echoed does not appear to be limited. How can I count the rows of the query?
Required classes for the pagination are autoloaded
Model:
class News_model extends CI_model {
function get_allNews()
{
$query = $this->db->get('news');
foreach ($query->result() as $row) {
$data[] = array(
'category' => $row->category,
'title' => strip_tags($row->title),
'intro' => strip_tags($row->intro),
'content' => truncate(strip_tags( $row->content),200),
'tags' => $row->tags
);
}
return $data;
}
Controller
// load pagination class
$config['base_url'] = base_url().'/news/index/';
$config['total_rows'] = $this->db->get('news')->num_rows();
$config['per_page'] = '5';
$config['full_tag_open'] = '<div id="pagination">';
$config['full_tag_close'] = '</div>';
$this->pagination->initialize($config);
$viewdata['allnews'] = $this->News_model->get_allNews($config['per_page'],$this->uri->segment(3));
View
<?php if (isset($allnews)): foreach ($allnews as $an): ?>
<?php echo heading($an['title'], 2); ?>
<?php echo $an['content']; ?>
<?php endforeach;
else: ?>
<h2>Unable to load data.</h2>
<?php endif; ?>
<?php echo $this->pagination->create_links(); ?>

Answer 1

In your controller, you're passing parameters to your get_allNews method, but your method doesn't make use of those parameters:
$viewdata['allnews'] = $this->News_model->get_allNews($config['per_page'],$this->uri->segment(3));
So you are getting all records, and expecting the limited result set. You need to change the beginning of your get_allNews method like this:
class News_model extends CI_model {
// make use of the parameters (with defaults)
function get_allNews($limit = 10, $offset = 0)
{
// add the limit method in the chain with the given parameters
$query = $this->db->limit($limit, $offset)->get('news');
// ... rest of method below