/**
* Implements Drupal\file\FileUsage\FileUsageInterface::add().
*/
public function add(FileInterface $file, $module, $type, $id, $count = 1)
{
// Make sure that a used file is permanent.
if (!$file->isPermanent()) {
$file->setPermanent();
$file->save();
}
}
/**
* @param \Drupal\file\FileInterface $file
*/
protected function saveFileUpload(FileInterface $file) {
// Save the file to get an fid, and then create a FillPdfForm record
// based off that.
$file->setPermanent();
// Save the file so we can get an fid
$file->save();
}