Yii1: Controller::beforeRender in Yii2
php, yii, yii2
Solution
If you're trying to access properties of the controller from a view (see above comments!), you can use;
$this->context
to return an instance of the currently used controller from within the view file. So to access your `beforeRender()` method you would just use
$this->context->beforeRender()
Problem
I'm migrating an old app developed in Yii1 to Yii2. I used to have a array in the controller that was storing all the variables that I would need to send to the frontend as a JavaScript: ``` public $jsVars; public function toJSObject($params){ $this->jsVars = array_merge($this->jsVars, $params); } private function printJSVarsObject(){ //convert my php array into a js json object } ``` When I needed a variable to be exposed in Javascript, I would just use $this->toJSObject, in the View or in the Controller. Then, in the controller I also used to have: ``` public function beforeRender($view){ $this->printJSVarsObject(); } ``` In Yii2, I had to configure the View component with a custom View and then attach an event: ``` namespace app\classes; use yii\base\Event; use yii\helpers\Json; Event::on(\yii\web\View::className(), \yii\web\View::EVENT_END_BODY, function($event) { $event->sender->registerJSVars(); }); class View extends \yii\web\View { public $jsVars = []; public function addJsParam($param){ $this->jsVars = array_merge($this->jsVars, $param); } public function registerJSVars() { $this->registerJs( "var AppOptions= " . Json::htmlEncode($this->jsVars) . ";", View::POS_END, 'acn_options' ); } } ``` But, having the event outside the class seems weird to me. Also, while I'm in the controller, I won't be able to use my former approach using this method. Obviously, I'm missing something, or my approach is just incorrect. How do you guys do that?