controller action with different render view base on contest page - yii2

Question

I have a controller action that get called in different places in my app.
Is it possible to render different view based on caller page?
public function actionMyaction($id){
// blar, blar
if (/* if I'm calling this action from index */) {
return $this->redirect(['index']);
}
else{
return $this->redirect(['update']);
}
}

Answer 1

Try something like,
if($model->isNewRecord)
return $this->render('create', ['model' => $model]);
else
return $this->render('update', ['model' => $model]);

Answer 2

Yes, by "caller page" I assume you mean the referrer.
class ExampleController extends Controller {
private function handleRedirect() {
$referrer = $_SERVER["HTTP_REFERER"];
if (!empty($referrer)) {
switch ($referrer) {
case "blar": return $this->redirect("blar");
}
}
$this->redirect("foo");
}
public function actionMyaction() {
// ... blar
return $this->handleRedirect();
}
}
If not, then maybe you mean the action is the differentiator:
class ExampleController extends Controller {
private function handleRedirect() {
switch (\Yii::$app->controller->action->id) {
case "myaction": return $this->redirect("blar");
}
$this->redirect("foo");
}
public function actionMyaction() {
// ... blar
return $this->handleRedirect();
}
}
If not again then please clarify your question!

Answer 3

You can use:
$this->redirect(Yii::$app->request->referrer);
or:
$this->goBack(Yii::$app->request->referrer);
As per the PHP documentation, $_SERVER["HTTP_REFERER"] is not always to be trusted:
PHP $_SERVER
Edit: of course, you get the added benefit that the Yii team can actually spell "referrer", and your brain doesn't have to scream about the mis-spelt HTTP version.

Answer 4

Maybe you need something like this:
public function actionMyaction($id){
// blar, blar
$referrer = Yii::$app->request->referrer;
$action = explode('/', $referrer);
switch (end($action)) {
case 'index':
return $this->redirect(['index']);
break;
case 'update':
return $this->redirect(['update']);
break;
default:
break;
}
}