frontend/controllers/SiteController.php

<?php
namespace frontend\controllers;
use artbox\core\models\Feedback;
use common\models\Settings;
use Yii;
use yii\base\InvalidParamException;
use yii\web\BadRequestHttpException;
use yii\web\Controller;
use yii\filters\VerbFilter;
use common\models\LoginForm;
use frontend\models\PasswordResetRequestForm;
use frontend\models\ResetPasswordForm;
use frontend\models\SignupForm;
use yii\web\Response;
/**
 * Site controller
 */
class SiteController extends Controller
{
    /**
     * @inheritdoc
     */
    public function actions()
    {
        return [
            'error' => [
                'class' => 'yii\web\ErrorAction',
            ],
        ];
    }
    
    /**
     * @inheritdoc
     */
    public function behaviors()
    {
        return [
            'verbs' => [
                'class'   => VerbFilter::className(),
                'actions' => [
                    'feedback' => [ 'post' ],
                ],
            ],
        ];
    }
    
    /**
     * Displays homepage.
     *
     * @return mixed
     */
    public function actionIndex()
    {
        return $this->render('index');
    }
    
    /**
     * Displays contact page.
     *
     * @return mixed
     */
    public function actionContact()
    {
        $contact = new Feedback();
        return $this->render(
            'contact',
            [
                'contact' => $contact,
            ]
        );
    }
    
    /**
     * Displays about page.
     *
     * @return mixed
     */
    public function actionAbout()
    {
        return $this->render('about');
    }
    
    /**
     * Action to view robots.txt file dinamycli
     *
     * @return string
     */
    public function actionRobots()
    {
        $response = \Yii::$app->response;
        /**
         * @var Settings $settings
         */
        $settings = Settings::find()
                            ->one();
        $temp = tmpfile();
        fwrite($temp, $settings->robots);
        $meta = stream_get_meta_data($temp);
        $response->format = $response::FORMAT_RAW;
        $response->headers->set('Content-Type', 'text/plain');
        return $this->renderFile($meta[ 'uri' ]);
    }
    
    public function actionFeedback()
    {
        Yii::$app->response->format = Response::FORMAT_JSON;
        if (empty(Yii::$app->request->post())) {
            throw new BadRequestHttpException();
        } else {
            $model = new Feedback();
            if ($model->load(Yii::$app->request->post()) && $model->save()) {
                return [
                    'success' => true,
                    'message' => 'Success message',
                    'alert'   => '<div class="alert alert-success">
            <h3>Success</h3>
            <p>
              Success text
            </p>
          </div>',
                ];
            } else {
                return [
                    'success' => false,
                    'error'   => $model->errors,
                ];
            }
        }
    }
}