controllers/RegistrationController.php
public function actionResend()
    {
        if ($this->module->enableConfirmation == false) {
            throw new NotFoundHttpException;
        }

        $model = \Yii::createObject(ResendForm::className());

        $this->performAjaxValidation($model);

        if ($model->load(\Yii::$app->request->post()) && $model->resend()) {
            return $this->render('/message', [
                'title'  => \Yii::t('user', 'A new confirmation link has been sent'),
                'module' => $this->module,
            ]);
        }

        return $this->render('resend', [
            'model' => $model
        ]);
    }
public function actionResend()
    {
        if ($this->module->enableConfirmation == false) {
            throw new NotFoundHttpException;
        }

        $model = \Yii::createObject(ResendForm::className());

        $this->performAjaxValidation($model);

        if ($model->load(\Yii::$app->request->post()) && $model->resend()) {
            return $this->render('/message', [
                'title'  => \Yii::t('user', 'A new confirmation link has been sent'),
                'module' => $this->module,
            ]);
        }

        return $this->render('resend', [
            'model' => $model
        ]);
    }
Displays page where user can request new confirmation token. If resending was successful, displays message.
@return string
@throws \yii\web\HttpException