Changes
                            
    Title
    unchanged
    Simple authorization system
    Category
    unchanged
    How-tos
    Yii version
    unchanged
    
    Tags
    unchanged
    auth, authorization, security
    Content
    changed
    [...]
In your components folder ( protected/components ) create a 'WebUser.php' file and a class like this:
```php
class WebUser extends CWebUser{/**
 
 * @property boolean $isAdmin
 
 * @property boolean $isSuperAdmin
 
 * @property User $user
 
 */
 
class WebUser extends CWebUser{
 
 /**
 
  * cache for the logged in User active record
 
  * @return User
 
  */
 private $_user;
 /
/**
 
  * is the user a superadmin ?
  * @return boolean
 
  */
 
 function getIsSuperAdmin(){
  return ( $this->user && $this->user->accessLevel ==
= User::LEVEL_SUPERADMIN );
 }
 /
/**
 
  * is the user an administrator ?
  * @return boolean
 
  */
 
 function getIsAdmin(){
  return ( $this->user && $this->user->accessLevel >= User::LEVEL_ADMIN );
 }
 /
/**
 
  * get the logged user
  * @return User|null the user active record or null if user is guest
 
  */
 
 function getUser(){
  if( $this->isGuest )
   return
 null;
  if( $this->_user === null ){
   $this->_user = User::model()->findByPk( $this->id );[...]
const LEVEL_REGISTERED=0, LEVEL_AUTHOR=1, LEVEL_ADMIN=6, LEVEL_SUPERADMIN=99;
 //**
 
  * define the label for each level
  * @param int $level the level to get the label or null to return a list of labels
 
  * @return array|string
 
  */
 
 static function getAccessLevelList( $level = null ){
  $levelList=array(
   self::LEVEL_REGISTERED => 'Registered',[...]
### Links
[Chinese Version](http://www.yiiwiki.com/wiki/view/id/19/title/%E7%AE%80%E5%8D%95%E7%9A%84%E7%94%A8%E6%88%B7%E6%8E%88%E6%9D%83%E7%B3%BB%E7%BB%9F "")