Difference between
                            #5                            and
                            #8                            of
                            Simple RBAC                        
                                                    
                            Changes
                            
    Title
    unchanged
    Simple RBAC
    Category
    unchanged
    Tutorials
    Yii version
    unchanged
    
    Tags
    unchanged
    Simple RBAC, Role based access control, roles, Authentication, Role based menu
    Content
    changed
    [...]
),
```
*Sidenote:*  
[CWebUser::checkAccess()] usually connects to the authorization system loaded in Yii.
Here we are replacing it with a simple system that just deals with roles instead of the hierarchical system defined by the derivatives of [CAuthManager]. See the official tutorial, [Role-Based Access Control](http://www.yiiframework.com/doc/guide/1.1/en/topics.auth#role-based-access-control
](Role-Based Access Control) for details.
## Checking permissions: usage[...]
return array(
		array('allow',
			'actions'=>array('admin'),
			'roles'=>array('staff', 'devel'),
		),[...]
Here the "admin" action of the controller has restricted access: only those with roles "staff" or "devel" can access it.
As described in the API doc of [CAccessRule](http://www.yiiframework.com/doc/api/1.1/CAccessRule#roles-detail
](CAccessRule), the "roles" attribute will in fact call `Yii::app()->user->checkAccess()`.
### How to display a different menu according to roles[...]
$this->widget('zii.widgets.CMenu',array(
	'items'=>array(				
		array('label'=>'Users', 'url'=>array('/manageUser/admin'), 'visible'=>$user->checkAccess('staff')),
		array('label'=>'Your Ideas', 'url'=>array('/userarea/ideaList'), 'visible'=>$user->checkAcces
s('normal')),
		array('label'=>'Login', 'url'=>array('/site/login'), 'visible'=>$user->isGuest),
		array('label'=>'Logout ('.Yii::app()->user->name.')', 'url'=>array('/site/logout'), 'visible'=>!$user->isGuest)
	),
));
?>[...]