codeigniter- 3 pagination loading all data on all page - mysql

Question

my models
function get_all_events($limit = null, $offset = null) {
if ($limit) {
$this->db->limit($limit, $offset);
}
$this->db->order_by('events.added_on', 'desc');
return $this->db->get('events');
}
my controller
public function manage_events() {
$this->securepage();
$data['events'] = $this->events_model->get_all_events();
$this->load->library('pagination');
$config['base_url'] = site_url('events/manage-events');
$config['total_rows'] = $this->events_model->get_all_events()->num_rows();
$config['per_page'] = 2;
$config['uri_segment'] = 3;
$this->pagination->initialize($config);
$data = array(
'news_title' => 'Manage events | kanchan news.com' ,
'Keywords' => 'manage',
'url' =>'' ,
'content'=> $this->load->view('events/manage', $data, true)
);
$this->load->view('kanchan', $data);
}
My view
<div class="container">
<ol class="breadcrumb">
<li class="active"><?php echo $this->session->userdata('full_name');?></li>
<li class="active">Manage Events</li>
</ol>
<h1>Manage Events here.</h1>
<?php echo $this->session->flashdata('msg'); ?>
<div>
<?php if ($events->num_rows()): ?>
<table class="table table-condensed">
<thead>
<tr>
<th>SN</th>
<th>Add Title</th>
<th>expire date</th>
<th>Added on</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<?php foreach ($events->result() as $u): ?>
<tr>
<td><?php echo $u->id; ?></td>
<td><?php echo $u->heading = word_limiter($u->heading,10); ?></td>
<td><?php echo $u->venue; ?></td>
<td><?php echo date('Y-m-d | h:i:a', $u->added_on); ?></td>
<td>
<span class="glyphicon glyphicon-trash"></span>
&nbsp &nbsp <span class="glyphicon glyphicon-edit"></span>
</td>
</tr>
<?php endforeach; ?>
</tbody>
</table>
<?php else: ?>
<p>No any Events
<hr>
Add New Events
</p>
<?php endif; ?>
</div>
<?php echo $this->pagination->create_links();?>
</div>
It creates pagination <1 2 but it loads all result on page 1 and also same result on page 2 and I had tried many ideas but it does not work.
I'm using codeigniter 3 and mysql .

Answer 1

It happen because you are getting all records at every page.You did not pass $limit and $offset. at your function.
$data['events'] = $this->events_model->get_all_events();//getting all records every time.
Try to write your manage_event function like this way
public function manage_events($page_num=1)
{
$this->securepage();
$data['events'] = $this->events_model->get_all_events(2,($page_num-1)*2);
///keep your rest code here
//remember this 2 is from your config because you wanted view 2 record per page.You can replace it with your varible.
Note
$config['base_url'] = site_url('events/manage-events');
This should be
$config['base_url'] = site_url('events/manage_events');//underscore not hypen