How to show data from database in dscending order in codeigniter? - php

Question

Normally when I get the data from my database I there are arranged in the order of their id.However, I have created a column called 'sales' which is also an integer
and I would like my data to be arranged in ascending order according to the sales.Here is my code:
My Model
public function get_bestseller($id = FALSE) {
if ($id === FALSE)
{
$query = $this->db->get('submit');
return $query->result_array();
}
$query = $this->db->get_where('submit', array('id' => $id));
$this->db->order_by('sales', 'DESC');
return $query->result_array();
}
My View
<div class="tab-pane fade" id="faq-cat-2">
<div class="panel-group" id="accordion-cat-2">
<?php foreach ($bestseller as $bestseller_item): ?>
<div class="col-sm-4 col-lg-4 col-md-4">
<div class="thumbnail">
<img class="lazy" src="<?php echo base_url() ?>Images/last.gif"
data-original="<?php echo base_url() ?>uploads/<?php echo $bestseller_item['imgname']; ?>"
style="width: 350px; height: 150px">
<div class="caption">
<?php if ($bestseller_item['Price'] == 0): ?>
<h4 class="pull-right"><p class="text-success">Free</p></h4>
<?php else: ?>
<h4 class="pull-right">$<?php echo $bestseller_item['Price']; ?></h4>
<?php endif; ?>
<h4>
<a href="<?php echo site_url('submit/view/' . $bestseller_item['id']); ?>"
target="_blank"><?php echo $bestseller_item['Title']; ?></a>
</h4>
<p><?php echo $bestseller_item['textarea']; ?></p>
</div>
<p class="text-right"><b
class="author">By: <?php echo $bestseller_item['Author']; ?></b>
</p>
</div>
</div>
<?php endforeach; ?>
</div>
</div>
My Controller
public function index()
{
$data['bestseller'] = $this->Submit_Database->get_bestseller();
$this->load->view('templates/header');
$this->load->view('pages/home', $data);
$this->load->view('templates/footer');
}

Answer 1

$query = $this->db->order_by('sales', 'DESC')->get_where('submit', array('id' => $id));
You are adding the order by clause after the query has already ran.