public function updateCover(Request $request, $id)
 {
     $store = Store::findOrFail($id);
     $file = $request->file('cover');
     $extension = $file->getClientOriginalExtension();
     $filename = 'stores/cover/' . $store->id . '/' . $file->getFilename() . '.' . $extension;
     Storage::disk('local')->put($filename, File::get($file));
     $entry = FileEntry::findOrNew($store->file_entries_id);
     if ($store->file_entries_id != 0) {
         Storage::disk('local')->delete($entry->filename);
     }
     $entry->mime = $file->getClientMimeType();
     $entry->original_filename = $file->getClientOriginalName();
     $entry->filename = $filename;
     $entry->save();
     $store->file_entries_id = $entry->id;
     $store->save();
     return response()->json(['id' => $entry->id]);
 }