public function update($id, Request $request)
 {
     $file = $request->file('file');
     $extension = $file->getClientOriginalExtension();
     Storage::disk('local')->put($file->getFilename() . '.' . $extension, File::get($file));
     $entry = Fileentry::find($id);
     $entry->original_mime_type = $file->getClientMimeType();
     $entry->original_filename = $file->getClientOriginalName();
     $entry->filename = $file->getFilename() . '.' . $extension;
     $entry->save();
 }