backend/controllers/CartController.php

<?php
namespace backend\controllers;
use common\models\Cart;
use Yii;
use common\models\CartBillsView;
use common\models\CartBillsSearch;
use backend\components\base\BaseController;
use yii\data\ActiveDataProvider;
use yii\web\NotFoundHttpException;
use yii\filters\VerbFilter;
/**
 * CartController implements the CRUD actions for CartBills model.
 */
class CartController extends BaseController
{
    public $layout = "/column";
    /**
     * Lists all CartBills models.
     * @return mixed
     */
    public function actionIndex()
    {
        $searchModel = new CartBillsSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
        ]);
    }
    /**
     * Displays a single CartBills model.
     * @param string $id
     * @return mixed
     */
    public function actionView($id)
    {
        $provider = new ActiveDataProvider([
            'query' => Cart::find()->where(['bill_id' => $id]),
            'sort' => false,
        ]);
        return $this->renderAjax('view', [
            'id' => $id,
            'provider' => $provider,
        ]);
    }
    /**
     * Finds the CartBills model based on its primary key value.
     * If the model is not found, a 404 HTTP exception will be thrown.
     * @param string $id
     * @return CartBills the loaded model
     * @throws NotFoundHttpException if the model cannot be found
     */
    protected function findModel($id)
    {
        if (($model = Cart::findOne(['bill_id' => $id])) !== null) {
            return $model;
        } else {
            throw new NotFoundHttpException('The requested page does not exist.');
        }
    }
}