Yii AccessRules Pass Parameter to Callback function in expression - yii

Question

I am developing an application in YII modules based
Need to restrict users on certain actions as well as on entire module
I was able to restrict the users using 'expression' + callback in rules but now I want to use the same callback function for two different actions i.e. I have a callback function which I want to get the parameter value and depending on that evaluate what action to perform, here is what I have done as yet
public function accessRules()
{
return array(
array('allow', // allow all users to perform 'index' and 'view' actions
'actions'=>array('index'),
'users'=>array('*'),
'expression'=>array($this, "checkAccessRule"),
),
array('allow', // allow all users to perform 'index' and 'view' actions
'actions'=>array('login'),
'users'=>array('?'),
),
array('allow', // allow authenticated user to perform 'create' and 'update' actions
'actions'=>array('view','create','update','admin','delete'),
'users'=>array('#'),
'expression'=>array($this, "checkAccessRule"),
),
array('deny', // deny all users
'users'=>array('*'),
),
);
}
the callback function
function checkAccessRule($op){
if($op == 1){
if(in_array($this->module->getName(), Yii::app()->user->getState("companyModules")))
return true;
return false;
}elseif($op == 2){
if((Yii::app()->user->getState("user_role") == 1) && (in_array($this->module->getName(), Yii::app()->user->getState("companyModules"))))
return true;
return false;
}
}
unable to get this '$op' from the callback if i send it 'expression'=>array($this, "checkAccessRule(1)"),
any help would be appreciated

Answer 1

That won't work, when you state the function name it will be called via Yii as a string so the (1) will be taken as part of the function name. Lucky for you, the expression parameter accepts an anonymous function too (function(){}). so:
public function accessRules()
{
return array(
array('allow', // allow all users to perform 'index' and 'view' actions
'actions'=>array('index'),
'users'=>array('*'),
'expression'=>function(){$this->checkAccessRule(1)},
),
array('allow', // allow all users to perform 'index' and 'view' actions
'actions'=>array('login'),
'users'=>array('?'),
),
array('allow', // allow authenticated user to perform 'create' and 'update' actions
'actions'=>array('view','create','update','admin','delete'),
'users'=>array('#'),
'expression'=>function(){$this->checkAccessRule(1)},,
),
array('deny', // deny all users
'users'=>array('*'),
),
);
}
Should work.