Yarik / artbox-shop

  <?php
      namespace frontend\controllers;

  
      use artbox\catalog\helpers\FilterHelper;

      use artbox\catalog\models\Category;
      use artbox\core\components\SeoComponent;

      use artbox\core\models\Alias;

      use yii\data\ActiveDataProvider;
      use yii\db\ActiveQuery;
      use yii\web\Controller;
      use yii\web\NotFoundHttpException;
      use Yii;
      
      /**
       * Class CategoryController
       *
       * @package frontend\controllers
       */
      class CategoryController extends Controller
      {
          /**
           * Show category by ID
           *

           * @param string $category

           *
           * @param string $filter
           *
           * @return string
           */

          public function actionView($category, $filter = '')

          {

              $model = $this->findModel($category);

              /**
               * @var SeoComponent $seo

               * @var FilterHelper $filterHelper

               */
              $seo = Yii::$app->get('seo');
              $seo->setModel($model->lang);
              $filterHelper = \Yii::$app->get('filter');
              $filterHelper->setFilter($filter);

              $query = $filterHelper->buildQuery()
                                    ->innerJoinWith('category', false)
                                    ->andWhere([ 'product_to_category.category_id' => $model->id ])
                                    ->with('images', 'variants', 'lang');

              $dataProvider = new ActiveDataProvider(
                  [

                      'query'      => $query,
                      'pagination' => [
                          'pageSize' => 18,
                      ],

                  ]
              );
              
              return $this->render(
                  'view',
                  [
                      'model'        => $model,
                      'dataProvider' => $dataProvider,
                  ]
              );
          }
          
          /**
           * Find category by ID
           *

           * @param $category

           *

           * @return \artbox\catalog\models\Category

           * @throws \yii\web\NotFoundHttpException
           */

          protected function findModel($category)

          {
              /**
               * @var SeoComponent $seo
               */
              $seo = Yii::$app->get('seo');
              /**

               * @var FilterHelper $filter
               */
              $filter = \Yii::$app->get('filter');
              /**
               * @var Alias $alias
               */
              $alias = Alias::find()
                            ->where([ 'value' => $category ])
                            ->one();
              $id = $filter->getIdFromRoute($alias->route);
              /**

               * @var Category $model

               */
              $model = Category::findWithFilters($id)

                               ->with('lang.alias')

                               ->with('categories.lang')
                               ->with(
                                   [
                                       'parent' => function ($query) {
                                           /**
                                            * @var ActiveQuery $query
                                            */
                                           $query->with('lang', 'categories.lang');
                                       },
                                   ]
                               )
                               ->one();

              $seo->setAlias($model->lang->alias);

              if (!empty( $model )) {
                  if ($model->lang->alias_id !== $seo->aliasId) {
                      throw new NotFoundHttpException('Wrong language');
                  }
                  return $model;
              } else {
                  throw new NotFoundHttpException('Model not found');
              }
          }
      }