CDN

https://developers.google.com/speed/libraries/

https://www.bootstrapcdn.com/

FAQ

If you have problem with base_url(), try this in application>config>config.php:
$config['base_url'] = "http://".$_SERVER['HTTP_HOST']."/codi/";

name of model class and model file name must be same[exactly same]
Ref: user_guide: user_guide/general/models.html?highlight=model

Executing raw SQL:
public function deactivate($id){
$sql='update quotes set active=0 where aid='.$id;
$this->db->query($sql);
}

Automatic Table Printer

All you need to do is copy the following code to your view file and call the view from controller and pass the table data as todos. i.e. $data['todos']=$query->result. $this->load->view('view',$data).

<?php
echo "<table>";
//print table headers
if($todos){
echo "<thead>";
foreach($todos[0] as $key=>$val){

echo "<td> $key </td>";

}
echo "</thead>";
//print data

foreach($todos as $todo){
echo "<tr>";
foreach($todo as $key => $val){
echo "<td> $val </td>";
}
echo "<tr>";
}
}else{
echo "<h1>Sorry, No Todo is available</h1>";
}

?>


</table>

Form Validation

Controller
=======
<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Config extends CI_Controller {

public function index()
{
if($this->input->post('submit')){
$this->form_validation->set_rules('emp_type','Employee Type','trim|required|min_length[9]');

if($this->form_validation->run()==FALSE)

{
$data=array(
'errors'=> validation_errors()
);
$this->session->set_flashdata($data);
}

redirect('config');

} else{
$this->load->view('config_view');
}


}
}





View

====
<?php echo form_open('config/index');

if($this->session->flashdata('errors')){
echo $this->session->flashdata('errors');
}
echo form_label('Employee Type','emp_type');
echo form_input(array('name' => 'emp_type',
 'class' => 'form-control',
 'placeholder'=>'Employee Type'
 ));

echo form_submit('submit','Save',array('class' => 'form-control'));

echo form_close();

?>

Create a Simple API

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class api extends CI_Controller {

public function index($secretkey)
{
             //api url http://dilir.me/codi/api/index/916
if(isset($secretkey) && $secretkey==='916'){
$data= json_encode(array(
"status" => true,
"name" => "Dilir",
"mail" => "dilir.khan@example.com",
"quote" =>"Try Simple Solution First"
));

}else{
$data=json_encode(array(
"status" => false
));
}

header('Content-Type: application/json');
echo $data;
}


}

Creating a API Example

public function api(){
$app = array();
$app['status']=false;

//url: dilir.me/api.php?auth=abraCadabra
//Check API key for security
if(isset($_GET['auth']) && $_GET['auth']==='abraCadabra'){
$app['status']=true;
$app['name']="Dilir";
$app['mail']="dilir.khan@example.com";
$app['quote']="Try Simple Solution First";
}else{
unset($app);
$app['status']=false;
}
header('Content-Type: application/json');
echo json_encode($app);
}