/**
  * Updates the file ordering for a listing of attached files.
  * @param array $attachmentList
  * @param $pageId
  */
 public function updateFileOrderWithinPage($attachmentList, $pageId)
 {
     foreach ($attachmentList as $index => $attachment) {
         Attachment::where('uploaded_to', '=', $pageId)->where('id', '=', $attachment['id'])->update(['order' => $index]);
     }
 }