FRONTEND_MVC/controllers/PodcastsController.php

<?php

namespace app\controllers;

use app\models\base\NewsTopic;
use app\models\News;
use yii\web\Controller;
use yii\web\NotFoundHttpException;

class PodcastsController extends Controller
{

    //public $viewTheme = "dark";
    //public $viewPath = "@app/views/news";

    public function actionIndex($topic=NULL)
    {
        $this->viewPath = "@app/views/podcasts";
        $topic_id = 127;
        return $this->render("index",["topic_id"=>$topic_id]);
    }

    /**
     * @param int $id
     * @return string
     */
    public function actionView(int $id):string {
        $model = $this->findModel($id);
        if(!$model instanceof News) throw new NotFoundHttpException("Новость не найдена");
        return $this->render('view',['model'=>$model]);
    }

    public function actionStoryslugView($storyslug):string
    {
        $model = News::find()->andWhere(['alias'=>$storyslug])->one();
        if(!$model instanceof News) throw new NotFoundHttpException("Новость не найдена");
        return $this->render('view',['model'=>$model]);
    }

    private function findModel($id)
    {
        return News::find()->andWhere(['id'=>$id])->one();
    }

    public function actionTopic($topic){
        $topic = NewsTopic::find()->andWhere(['url'=>$topic])->one();
        if( !$topic instanceof NewsTopic ) throw new NotFoundHttpException("Раздел не найден");
        return $this->render("archive/index",["topic"=>$topic]);
    }
}