php - Setting user role (admin/user) in Yii -

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how can set user's role after login him/her yii::app()->user->login($identity, 0);?

what i'm asking how/what rule check if user logged in (@) , administrator (admin)?

code in random controller:

public function accessrules() {     return array(         array('allow',             'actions'=>array('users','user'),             'users'=>array('@'),         ),         array('allow',             'actions'=>array('admin','delete'),             'users'=>array('admin'),         ),         array('deny',             'users'=>array('*'),         ),     ); }

well, seydamet said tutorial yii user writes. in case 

'users'=>array('admin'),

means user actual username of admin.

i believe trying use roles. in case still link above perfect.

after loggin in can http://www.yiiframework.com/wiki/65#hh3 , assign role like

        if(!$auth->isassigned('bob',$this->_id))         {             if($auth->assign('bob',$this->_id))             {                 yii::app()->authmanager->save();             }         }

then can 

public function accessrules() {     return array(         array('allow', // allow bob role access view file             'actions'=>array('view'),             'roles'=>array('bob')         ),          array('deny',   // deny else             'users' => array('*')         )     ); }

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