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Tremendous tutorial!

I was just wondering if you could point me in the right direction as to how to implement users with different privilege levels ie, users with privilege level 1 get sent to one page, users with privilege level 2 get sent to another page, and both can only see their respective pages.

Many thanks,

Matt

I now understand that because self::user is static it does NOT need to be instantiated.

Is it true to say that the Current_User class is “singleton-like” but is not really an example of the singleton pattern?

In the singleton pattern a static public function is called that should instantiate a single instance of the class if this hasn’t been done already. Otherwise it returns the existing instance. This would give access to any non-static properties in the single instance that are created on its instantiation.

In Current_User, the Current_User class is never instantiated. It doesn’t need to be as it has no non-static properties. Would it be fair to say that Current_User is really just a static class and not an example of the singleton pattern?

Thanks again for your great tutorials.

Thanks for these tutorials. I’m having trouble understanding the use of the Singleton pattern here.

The first use of current_user.php is a call to static function login() in authenticate() in login.php as follows…

return Current_User::login($this->input->post(’username’),$this->input->post(’password’));

This static login() method “sets” the value of self::$user.

From reading about Singleton I understand that the Current_User needs to be instantiated once, from a call to a static method, to create an instance of self::user. The Singleton class Current_User, would be set up in such a way that any future calls to this same static function would simply return the same static property self::user.

So my question is, how can the static property self::user be set when an instance of it hasn’t been created yet.

Thanks for your help.

Thanks a lot for your work and your explications.
I have a probleme vith the login function. I can loggin but dont write session.
I have try to set a session in an user page, it’s ok, but not when I called login function.
If someone can help me, it will be great.

Thanks

http://localhost/index.php/localhost/index.php/login/submit

and if i click on create new account it takes me here:

http://localhost/index.php/localhost/index.php/signup

Why does it return localhost/index.php 2 times in the url

Im confused

Hope anyone knows what the issue might be

Burak :

It is encrypted

It’s not. ;P It is hashed. Hashing != Encryption.

To log into a database using the username and password. But I want to change the username to be id_name. What code should be replaced in login.php in the controller, login_view, and user.php in the model?

Sorry with my english ..

I need your explanation because I am still new in using the CI.

Thanks.

I have no idea why this works, but the comment below this was on the right track.

I have followed all lines of code. But when I logged in using right username & password, It doesn’t logged in and asked me again with one notice as follows,

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: user_id

Filename: models/current_user.php

Line Number: 16

can you help me pls?

Thanks.

Anyhow, thanks for an excellent tutorial, sir! I did have one other more relevant question: Just to test security, I logged in correctly to my users controller, then copied the url, logged out, and tried to access the users area with the url I’d pasted. As hoped for, I was redirected to my login controller and a blank login form. Suppose I want to pass an error message which says something to the effect of ‘You are not currently logged in!’ when that happens. What’s the best way to achieve something like this?

Thanks again!

I’m trying to create a ‘users’ controller which will contain all protected content for logged in users. I’m trying to use the singleton to do a check to see if the user is logged in in the __construct function like so:

class Users extends Controller {
function __construct() {
if(Current_User::user()) {
$this->index();
} else {
redirect(’login’);
}
}

When I do that, however, I get: Fatal error: Class ‘Current_User’ not found in… etc. I thought the Current_User class was autoloaded? The file current_user.php is inside of my models directory… Any idea how I can resolve this?

Much thanks!

I am getting an error message though, when I try to create a user (it is called character in my app):

Fatal error: Uncaught exception ‘Doctrine_Table_Exception’ with message ‘Class “CI_Base” must be a child class of Doctrine_Record’ in C:\xampp\htdocs\legion\system\application\plugins\doctrine\lib\Doctrine\Table.php:319 Stack trace: #0 C:\xampp\htdocs\legion\system\application\plugins\doctrine\lib\Doctrine\Table.php(256): Doctrine_Table->initDefinition() #1 C:\xampp\htdocs\legion\system\application\plugins\doctrine\lib\Doctrine\Connection.php(1126): Doctrine_Table->__construct(’Characters’, Object(Doctrine_Connection_Mysql), true) #2 C:\xampp\htdocs\legion\system\application\plugins\doctrine\lib\Doctrine\Core.php(1095): Doctrine_Connection->getTable(’Characters’) #3 C:\xampp\htdocs\legion\system\application\libraries\MY_Form_validation.php(16): Doctrine_Core::getTable(’Characters’) #4 C:\xampp\htdocs\legion\system\libraries\Form_validation.php(630): MY_Form_validation->unique(’test’, ‘Characters.name’) #5 C:\xampp\htdocs\legion\system\libraries\Form_validation.php(337): CI_Form_validation->_execute(Array, Array, ‘test’) # in C:\xampp\htdocs\legion\system\application\plugins\doctrine\lib\Doctrine\Table.php on line 319