/**
  * slider迁徙
  * @param DeepInUpload $upload
  */
 protected function slider(DeepInUpload $upload)
 {
     $sliders = ShopSlider::all();
     foreach ($sliders as $item) {
         if (!$item instanceof ShopSlider) {
             continue;
         }
         $banner = $item->sliderPic();
         if (empty($banner)) {
             continue;
         }
         $response = $upload->getUpYunUrl($banner);
         $responseValue = $response->getResponseValue();
         if ($responseValue instanceof UpYunResponseValue) {
             $this->addToMap($banner, $responseValue->getLocation());
         }
     }
 }