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+--- Thread: Library creation problem! (/showthread.php?tid=11637)
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Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
Hi,
I created a new library and added to the path:
system/application/libraries/Site_authentication.php
The Library code is:
Code:
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* Code Igniter AJAX Class
*
* This class enables you to check User Authentication with the help of Session.
*
* @package CodeIgniter
* @subpackage Libraries
* @category Libraries
* @author Aniesh
* @link http://www.no-link-yet.com
*/
class Site_authentication
{
function Site_authentication()
{
$this->obj =& get_instance();
}
function validate_user()
{
// Not logged in, then redirect to the Home Page.
if(!$this->session->userdata('logged_in'))
redirect(site_url(), 'refresh');
}
}
?>Then in the system/application/config/autoload.php, I have loaded this library by:
Code:
$autoload['libraries'] = array('Site_authentication', 'session');Then I call the function form the Controller:
Code:
function index()
{
$this->Site_authentication->validate_user();
$data['mysubscriptions'] = $this->Mysubscription_model->mysubscriptions();
$this->load->view('mysubscription_view',$data);
}But it returns the following error:
-----------------------------------------------------------
A PHP Error was encountered
Severity: Notice
Message: Undefined property: Mysubscription::$Site_authentication
Filename: controllers/mysubscription.php
Line Number: 28
-----------------------------------------------------------
Fatal error: Call to a member function validate_user() on a non-object in http://sitename.com/system/application/controllers/mysubscription.php on line 28
-----------------------------------------------------------
Can you please help me to fix this ?
Thank You..
Library creation problem! - El Forum - 09-17-2008
[eluser]Weblizard[/eluser]
You must use lower case when accessing your class
So you should change controller code to this
Code:
$this->site_authentication->validate_user();Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
Thank you for your reply.. I checked by changing its name and its worked..
Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
How can I mark this problem is solved ?
Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
Now it returns another error:
******************************************
A PHP Error was encountered
Severity: Notice
Message: Undefined property: User_authentication::$session
Filename: libraries/User_authentication.php
Line Number: 32
Fatal error: Call to a member function userdata() on a non-object in /system/application/libraries/User_authentication.php on line 32
On Line 32, I added a Session checking and is below:
Code:
if(!$this->session->userdata('logged_in'))Actually I want to redirect to the home page, if the user doesn't logged in.. For that I checked inside the Session..
Library creation problem! - El Forum - 09-17-2008
[eluser]xwero[/eluser]
Code:
if(!$this->obj->session->userdata('logged_in'))Library creation problem! - El Forum - 09-17-2008
[eluser]Weblizard[/eluser]
You can't use $this (CodeIgniter's native resources) under your library instead you need to first assign the CodeIgniter super object to a variable and then use that variable
Please add this to your method
Code:
$CI =& get_instance();now you have access to $CI so you can call userdate() method this way
Code:
if(!$CI->session->userdata('logged_in'))You may read User guide for better understanding about coding your library
Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
Thank you again.
I tried that way but it doesn't work. But I tried another method as you mentioned and that works fine. Now the library is like this:
Code:
class User_authentication
{
function User_authentication()
{
$this->obj =& get_instance();
}
function display()
{
// Not logged in, then redirect to the Home Page.
if(!$this->obj->session->userdata('logged_in'))
redirect('', 'refresh');
}
}Library creation problem! - El Forum - 09-17-2008
[eluser]Weblizard[/eluser]
That was suggested by xwero,
anyway my suggestion was
Code:
class User_authentication
{
function User_authentication()
{
}
function display()
{
$CI =& get_instance();
// Not logged in, then redirect to the Home Page.
if(!$CI->session->userdata('logged_in'))
redirect('', 'refresh');
}
}Library creation problem! - El Forum - 09-17-2008
[eluser]Joseph1982[/eluser]
I tried your method also and it works. Thank you for all your support & suggestions.