php - CPHPAuthmanger の何が問題なのですか?

Question

RBAC に CPHPAuthmanager を使用しています。コードのどこが間違っているのかわからない? 誰かがログインするたびに通常以外の役割を割り当てないのはなぜですか?

//保護された/config/app.php

<?php
  return array(
'userTypes' => array(
    'normal' => 0,
    'admin' => 1,
    'student' => 2,
    'teacher' => 3

),
'userTypesArray' => array(
    0 => 'normal',
    1 => 'admin',
    2 => 'student',
    3 => 'teacher'
),
    );
?>

//保護された/データ/auth.php

<?php
  return array(
'admin' => array(
        'type' => 2,
        'description' => '',
        'bizRule' => NULL,
        'data' => NULL
    ),

'student' => array(
        'type' => 2,
        'description' => '',
        'bizRule' => NULL,
        'data' => NULL
    ),

'teacher' => array(
        'type' => 2,
        'description' => '',
        'bizRule' => NULL,
        'data' => NULL
    ),

'normal' => array(
        'type' => 2,
        'description' => '',
        'bizRule' => NULL,
        'data' => NULL
    )
 );

?>

//保護された/コンポーネント/UserIdentity.php

if(count($users) == 0)
        $this->errorCode=self::ERROR_USERNAME_INVALID;
    elseif ($users[0]->password!==$this->password)
        $this->errorCode=self::ERROR_PASSWORD_INVALID;
    else
    {
        Yii::app()->authManager->clearAuthAssignments();
        $this->errorCode=self::ERROR_NONE;
        $this->setState('rol', $users[0]->type);
        if($users[0]->type == Yii::app()->params['app']['userTypes']['admin'])
            Yii::app()->authManager->assign('admin', $users[0]->UId);
        elseif($users[0]->type == Yii::app()->params['app']['userTypes']['student'])
            Yii::app()->authManager->assign('student', $users[0]->UId);
        elseif($users[0]->type == Yii::app()->params['app']['userTypes']['teacher'])
            Yii::app()->authManager->assign('teacher', $users[0]->UId);
        else
        {
            Yii::app()->authManager->assign('normal', $users[0]->UId);
        }
        Yii::app()->authManager->save();
    }
    return !$this->errorCode;

// 構成/メイン

$auth=Yii::app()->authManager;

$bizRule='return !Yii::app()->user->isGuest;';

$auth->createRole('normal', 'Normal User', $bizRule);

$bizRule='return (isset(Yii::app()->user->rol))? (Yii::app()->user->rol === "admin") : false;';
$auth->createRole('admin', 'System Admin', $bizRule);

$bizRule='return (isset(Yii::app()->user->rol))? (Yii::app()->user->rol === "student") : false;';
$auth->createRole('student', 'Student', $bizRule);

$bizRule='return (isset(Yii::app()->user->rol))? (Yii::app()->user->rol === "teacher") : false;';
$auth->createRole('teacher', 'Teacher', $bizRule);

//controllers/somecontroller

public function accessRules()
{
return array(
            array('allow', 
            'actions'=>array('index', 'view', 'create', 'update', 'admin','delete'),
            'roles'=>array('admin'),
        ),
        array('deny',  // deny all users
            'users'=>array('*'),
        ),
    );
}

助けてください、事前に感謝します。:)