frontend/controllers/SiteController.php

<?php
namespace frontend\controllers;
use common\components\Mailer;
use Yii;
use common\models\LoginForm;
use frontend\models\PasswordResetRequestForm;
use frontend\models\ResetPasswordForm;
use frontend\models\SignupForm;
use frontend\models\ContactForm;
use yii\base\InvalidParamException;
use yii\web\BadRequestHttpException;
use yii\web\Controller;
use yii\filters\VerbFilter;
use yii\filters\AccessControl;
use yii\web\Response;
use yii\widgets\ActiveForm;
class SiteController extends Controller
{
    public function actionMain()
    {
        return $this->render('index', [
        ]);
    }
    /**
     * Logs out the current user.
     *
     * @return mixed
     */
    public function actionLogout()
    {
        Yii::$app->user->logout();
        return $this->goHome();
    }
    /**
     * Logs in a user.
     *
     * @return mixed
     */
    public function actionLogin()
    {
        if (!\Yii::$app->user->isGuest) {
            return $this->goHome();
        }
        $model = new LoginForm();
        if ($model->load(Yii::$app->request->post()) && $model->login()) {
            return $this->goBack();
        } else {
            return $this->render('index', [
                'model' => $model,
            ]);
        }
    }
    /**
     * Signs user up.
     *
     * @return mixed
     */
    public function actionSignup()
    {
        if(Yii::$app->request->post()){
            if (Yii::$app->request->isAjax) {
                Yii::$app->response->format = Response::FORMAT_JSON;
                $model = new SignupForm();
                $model->load(Yii::$app->request->post());
                return ActiveForm::validate($model);
            } else {
                $model = new SignupForm();
                $model->load(Yii::$app->request->post());
                if ($user = $model->signup()) {
                    if (Yii::$app->getUser()->login($user)) {
                        return $this->goHome();
                    }
                }
            }
        }
        return $this->render('signup', [
            'model' => $model,
        ]);
    }
    public function actionError(){
        return $this->render('error', [
            'code'=>'404',
        ]);
    }
    /**
     * Requests password reset.
     *
     * @return mixed
     */
    public function actionRequestPasswordReset()
    {
        $model = new PasswordResetRequestForm();
        if ($model->load(Yii::$app->request->post()) && $model->validate()) {
            if ($model->sendEmail()) {
                Yii::$app->session->setFlash('success', 'Check your email for further instructions.');
                return $this->goHome();
            } else {
                Yii::$app->session->setFlash('error', 'Sorry, we are unable to reset password for email provided.');
            }
        }
        return $this->render('requestPasswordResetToken', [
            'model' => $model,
        ]);
    }
    /**
     * Resets password.
     *
     * @param string $token
     * @return mixed
     * @throws BadRequestHttpException
     */
    public function actionResetPassword($token)
    {
        try {
            $model = new ResetPasswordForm($token);
        } catch (InvalidParamException $e) {
            throw new BadRequestHttpException($e->getMessage());
        }
        if ($model->load(Yii::$app->request->post()) && $model->validate() && $model->resetPassword()) {
            Yii::$app->session->setFlash('success', 'New password was saved.');
            return $this->goHome();
        }
        return $this->render('resetPassword', [
            'model' => $model,
        ]);
    }
}