code: public function convertDcaValue(PickerConfig $config, $value): string
      {
          if ('file' === $config->getContext()) {
              return $value;
          }
  
          /** @var FilesModel $filesAdapter */
          $filesAdapter = $this->framework->getAdapter(FilesModel::class);
          $filesModel = $filesAdapter->findByPath(rawurldecode($value));
  
          if ($filesModel instanceof FilesModel) {
              return '{{file::'.StringUtil::binToUuid($filesModel->uuid).'}}';
          }
  
          return $value;
      }
docs: {@inheritdoc}