Yii2 Auto login after registration

Question

How can I achieve auto login after registration in yii2? In yii1, we achieved this through user Identity, but now I couldn't find it.

MY controller

public function actionCreate()
{
    $model = new User();

    if ($model->load(Yii::$app->request->post()) && $model->save()) {
         Yii::$app->session->setFlash('success', 'Please Login with Email/Password!');

        return $this->redirect('../site/login');
    } else {
        return $this->render('create', [
            'model' => $model,
        ]);
    }
}  

If registration is successful, I want to auto login instead of going site login.

Answer 1

if ($model->load(Yii::$app->request->post()) && $model->save()) {

    \Yii::$app->user->login($model);

   return $this->redirect(['/site/index']);

}

Answer 2

You can accomplish that with switchIdentity() method.

Example:

if ($userModel->load(Yii::$app->request->post()) && $userModel->save()) {
    Yii::$app->user->switchIdentity($userModel); // log in
    // do your stuff
}