Show Checked Checkboxes Oncheckboxlist

While selecting update, i want to populate the data to the checkboxlist from a database and show the boxes ticked for the selected Vendor to Update. I have added the screenshot of my update page.

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vendor.PNG

In my VendorCuisineController, code for update is as follows:





 public function actionUpdate($VendorId,$CuisineId)

    {

        $record = $this->findCuisines($VendorId);

        $model = new VendorCuisine;

        $model1 = $this->findModel($VendorId, $CuisineId);

        $i=0;

        if($model->load(Yii::$app->request->post()))

        {  

         foreach ($record as $items)

         {

           $database[$i]=$items->CuisineId;

           $i++;

         }


        $length = count($model->CuisineId);

           for ($i=0;$i<$length;$i++) {

              $postbase[$i]=$model->CuisineId[$i];

                        

             }

                    

         $result = array_diff($postbase,$database);

             foreach ($result as $item) {

              $vc = new VendorCuisine();

              $vc->VendorId = $VendorId;

              $vc->CuisineId = $item;

              $vc->save();

               }

         $result = array_diff($database,$postbase);

              foreach ($result as $item) {

               $this->findModel($VendorId, $item)->delete();

                }


            return $this->redirect(['index']);   

                

                }





       else {

             $model2=['VendorId'=>$VendorId,

                      'CuisineId'=>$this->findCuisineIdOnly($VendorId),

                      ]; 

           return $this->render('update', [

            'model' => $model1,

         ]);

          

        }

      }




and the code in _form is as follows:





          <div class="vendor-cuisine-form">


    <?php $form = ActiveForm::begin(); ?>


    <?= $form->field($model, 'VendorId')->textInput() ?>


    


    <?= $form->field($model, 'CuisineId')->checkboxList($model->DataList);?>


    <div class="form-group">

        <?= Html::submitButton($model->isNewRecord ? 'Create' : 'Update', ['class' => $model->isNewRecord ? 'btn      btn-success' : 'btn btn-primary']) ?>

    </div>


    <?php ActiveForm::end(); ?>


</div>