UserIdentity and session issue - yii

Question

I have the following class. But when I try to access the Yii::app()->user->realName; it generates an error.
I can't understand it all. please help!
Following code is the code of my UserIdentity class.
<?php
/**
* UserIdentity represents the data needed to identity a user.
* It contains the authentication method that checks if the provided
* data can identity the user.
*/
class UserIdentity extends CUserIdentity {
public $id, $dmail, $real_name;
/**
* Authenticates a user.
* The example implementation makes sure if the username and password
* are both 'demo'.
* In practical applications, this should be changed to authenticate
* against some persistent user identity storage (e.g. database).
* #return boolean whether authentication succeeds.
*/
public function authenticate() {
$theUser = User::model()->findByAttributes(array(
'email' => $this->username,
// 'password' => $this->password
));
if ($theUser == null) {
$this->errorCode = self::ERROR_PASSWORD_INVALID;
} else {
$this->id = $theUser->id;
$this->setState('uid', $this->id);
// echo $users->name; exit;
// $this->setState('userName', $theUser->name);
$this->setState("realName",$theUser->fname .' '. $theUser->lname);
$this->errorCode = self::ERROR_NONE;
}
return!$this->errorCode;
}
}
?>

Answer 1

You need to extend the CWebUser class to achieve the results you want.
class WebUser extends CWebUser{
protected $_realName = 'wu_default';
public function getRealName(){
$realName = Yii::app()->user->getState('realName');
return (null!==$realName)?$realName:$this->_realName;
}
public function setRealName($value){
Yii::app()->user->setState('realName', $value);
}
}
You can then assign and recall the realName attribute by using Yii::app()->user->realName.
The protected $_realName is optional, but allows you to define a default value. If you choose not to use it, change the return line of the getRealName method to return $realName.
Place the above class in components/WebUser.php, or anywhere that it will be loaded or autoloaded.
Change your config file to use your new WebUser class and you should be all set.
'components'=>
'user'=>array(
'class'=>'WebUser',
),
...
),