RegistrationForm::validate PHP Method

    function validate()
    {
        if (count((array) $this->getData('reviewerGroup')) == 0 && count((array) $this->getData('authorGroup')) == 0 && count((array) $this->getData('readerGroup')) == 0) {
            $this->addError('userGroups', __('user.register.form.userGroupRequired'));
        }
        return parent::validate();
    }

 /**
  * Registration user
  */
 public function actionRegistration()
 {
     $model = new RegistrationForm();
     // ajax validator
     if (isset($_POST['ajax']) && $_POST['ajax'] === 'registration-form') {
         //echo UActiveForm::validate(array($model, $profile));
         $model->validate();
         $model->getErrors();
         Yii::app()->end();
     }
     if (Yii::app()->user->id) {
         $this->redirect(Yii::app()->controller->module->profileUrl);
     } else {
         if (isset($_POST['RegistrationForm'])) {
             $model->attributes = $_POST['RegistrationForm'];
             //$profile->attributes = ((isset($_POST['Profile']) ? $_POST['Profile'] : array()));
             if ($model->validate()) {
                 $soucePassword = $model->password;
                 $model->activkey = UserModule::encrypting(microtime() . $model->password);
                 $model->password = UserModule::encrypting($model->password);
                 $model->verifyPassword = UserModule::encrypting($model->verifyPassword);
                 $model->superuser = 0;
                 $model->status = Yii::app()->controller->module->activeAfterRegister ? User::STATUS_ACTIVE : User::STATUS_NOACTIVE;
                 if ($model->save()) {
                     //$profile->user_id = $model->id;
                     //$profile->save();
                     if (Yii::app()->controller->module->sendActivationMail) {
                         $activation_url = $this->createAbsoluteUrl('/user/activation/activation', array("activkey" => $model->activkey, "email" => $model->email));
                         UserModule::sendMail($model->email, t("You registered from {site_name}", array('{site_name}' => Yii::app()->name)), t("Please activate you account go to {activation_url}", array('{activation_url}' => $activation_url, '{username}' => $model->username, '{password}' => $model->password, '{site_name}' => Yii::app()->name)));
                     }
                     if ((Yii::app()->controller->module->loginNotActiv || Yii::app()->controller->module->activeAfterRegister && Yii::app()->controller->module->sendActivationMail == false) && Yii::app()->controller->module->autoLogin) {
                         $identity = new UserIdentity($model->username, $soucePassword);
                         $identity->authenticate();
                         Yii::app()->user->login($identity, 0);
                         $this->redirect(Yii::app()->controller->module->returnUrl);
                     } else {
                         if (!Yii::app()->controller->module->activeAfterRegister && !Yii::app()->controller->module->sendActivationMail) {
                             Yii::app()->user->setFlash('registration', t("Thank you for your registration. Contact Admin to activate your account."));
                         } elseif (Yii::app()->controller->module->activeAfterRegister && Yii::app()->controller->module->sendActivationMail == false) {
                             Yii::app()->user->setFlash('registration', t("Thank you for your registration. Please {{login}}.", array('{{login}}' => CHtml::link(t('Login'), Yii::app()->controller->module->loginUrl))));
                         } elseif (Yii::app()->controller->module->loginNotActiv) {
                             Yii::app()->user->setFlash('registration', t("Thank you for your registration. Please check your email or login."));
                         } else {
                             Yii::app()->user->setFlash('registration', t("Thank you for your registration. Please check your email."));
                         }
                         $this->refresh();
                     }
                 }
             }
             // else
             //$profile->validate();
         }
         $this->render('/user/registration', array('model' => $model));
     }
 }