public function registration()
 {
     if ($this->validate()) {
         $user = new User();
         $user->username = $this->username;
         $user->email = $this->email;
         $user->setPassword($this->password);
         $user->generateAuthKey();
         $user->generateActivationToken();
         if ($user->save()) {
             $userRole = Yii::$app->authManager->getRole('user');
             Yii::$app->authManager->assign($userRole, $user->id);
             Yii::$app->mailer->compose(['html' => 'userActivateToken-html', 'text' => 'userActivateToken-text'], ['user' => $user])->setFrom([Yii::$app->params['supportEmail'] => Yii::$app->name . ' robot'])->setTo($user->email)->setSubject('Activate accaunt for ' . Yii::$app->name)->send();
             if ($user->status !== User::STATUS_ACTIVE) {
                 Yii::$app->session->setFlash('success', 'Please, activate your accaunt');
                 return true;
             }
         }
     } else {
         return false;
     }
 }