Php Yii: parameter passing to action vs load model in action -

i'm trying optimize code, , can't decide on use, , whichever best practice.

i have view view1.php, rendered action. view1 contains model $model passed on view action; i'm using $model again use in different action below:

view1.php:

$studydetails = $this->actionstudydetails($model); 

and in studydetails action, i'm going use $model,

studycontroller.php:

public function actionstudydetails($model){  //do processing of model here , return object  } 

my question is, idea pass entire object that's been loaded, supposing model large? in terms of optimization , or best practice?

or should pass id or primary key $model->id? , load model after; making action this:

studycontroller.php:

public function actionstudydetails($id){     $model = $this->loadmodel($id); //do processing of model here , return object  } 

should pass entire object unto action or best reload model once inside action? thanks, hope explained well

i prefer loading single row database. it's optimization wouldn't worry until becomes issue.

you can store model in controller prevent running same query multiple times:

// store model not repeat query. private $model;  protected function loadmodel( $id = null ) {     if($this->model===null)     {         if($id!==null)             $this->model=somemodel::model()->findbypk($id);     }     return $this->model; } 

it's trick learned here.