title: Disable ion auth for front end in codeigniter
body: <p>I've been trying to accomplish this for some time but no results.. 
  I'm using a ion auth in my codeignitor website.</p>
  
  <p>I want to disable ion auth for front end login, and want it to only work for admin side login. is that possible? if yes then how..</p>
  
  <p>my code:</p>
  
  <pre><code>    class Login extends MY_Controller {
  
          public function __construct(){
          parent::__construct();
          $this-&gt;load-&gt;library('session');
          $this-&gt;load-&gt;helper('url');
          require_once APPPATH.'vendor/autoload.php';
          }
  
          public function index(){
  
              $this-&gt;render('login');
  
          }
  }
  </code></pre>
  
  <p>This generates below error: </p>
  
  <pre><code>A PHP Error was encountered
  
  Severity: Notice
  
  Message: Undefined property: CI::$ion_auth
  
  Filename: MX/Controller.php
  
  Line Number: 59
  
  Backtrace:
  
  File: D:\xampp\htdocs\moneyclues2\application\third_party\MX\Controller.php
  Line: 59
  Function: _error_handler
  
  File: D:\xampp\htdocs\moneyclues2\application\core\MY_Controller.php
  Line: 126
  Function: __get
  
  File: D:\xampp\htdocs\moneyclues2\application\core\MY_Controller.php
  Line: 59
  Function: _setup
  
  File: D:\xampp\htdocs\moneyclues2\application\controllers\Login.php
  Line: 7
  Function: __construct
  
  File: D:\xampp\htdocs\moneyclues2\index.php
  Line: 316
  Function: require_once
  </code></pre>
  
  <p>when I extend CI_controller. I got below error for render method</p>
  
  <pre><code>Fatal error: Call to undefined method Login::render() in D:\xampp\htdocs\moneyclues2\application\controllers\Login.php on line 15
  A PHP Error was encountered
  
  Severity: Error
  
  Message: Call to undefined method Login::render()
  
  Filename: controllers/Login.php
  
  Line Number: 15
  
  Backtrace:
  </code></pre>