Refactoring services #885

frontend/controllers/SiteController.php

         if ($model->load(Yii::$app->request->post())) {
             $user = $model->signup();
 
-            if ($user && $this->getUserCurrent()->login($user)) {
+            if ($user && Yii::$app->getUser()->login($user)) {
                 if ($model->isProducer()) {
                     $this->redirect(Yii::$app->urlManagerBackend->createAbsoluteUrl(['site/index']));
                 }