public function actionRegister()
    {
        try{
            $user = new User();

            $user->username = \Yii::$app->request->post('username');
            $user->scenario = 'registration';
            $user->email = \Yii::$app->request->post('email');;
            $user->save();

            $profile = new Profile();
            $profile->firstname = \Yii::$app->request->post('firstname');;
            $profile->lastname = \Yii::$app->request->post('username');;
            $profile->about= \Yii::$app->request->post('about');;
            $profile->user_id = $user->id;
            $profile->save();
            $pass =  hash('sha512', \Yii::$app->request->post('password'));
            $password = new Password();
            $password->newPassword = $pass;
            $password->newPasswordConfirm = $pass;
            $password->setPassword($pass);
            $password->password = $pass;
            $password->currentPassword = $pass;
            $password->scenario = 'registration';
            $password->user_id = $user->id;
            $password->save();

            $group = Group::findOne(["name" => "Users"]);
            $group->addUser($user);

            return Array("success" => true);
        }catch(\Exception $e){
            return Array(
                "error" => $e->getMessage(),
                "success" => false);
        }
    }