Create constructor method in controller in Yii

Question

I have just started to learn Yii, where I have created one PostController Controller. In this controller I am having one requirement of using Sessions.

So I have created one constructor method and its code is as follows

public $session;
public function __construct() {
    $this->session = new CHttpSession;
    $this->session->open();
}

But after creating this constructor the controller was not working and gives error. And after deleting this code my controller was working perfectly. I have written this code inside constructor to not initialize the Session in each method for actionCreate and actionUpdate.

So my question is how can we create constructor in Yii?

Thanks

Answer 1

I use init() for that, but found what people think __construct is better.

Answer 2

public function __construct()
{
      parent::__construct($this->id, $this->module);
}

Answer 3

You simply forgot to call parent constructor :

public function __construct()
{
  .....
  parent::__construct();
}

You could use beforeAction instead of overriding __construct.

And Sergey is right, by default Yii will start session (autoStart), you just have to use Yii::app()->session, e.g. :

Yii::app()->session['var'] = 'value';