/**
  * Proses pinjam buku dari pesanan member.
  *
  * @return Response
  */
 public function process($id)
 {
     $data = BookUser::find($id);
     $data->status = 'pinjam';
     $data->save();
     return redirect('operator/transactions');
 }
 public function update($id)
 {
     $book = Book::find(\Request::input('book_id'));
     $book->stock += 1;
     $book->save();
     $data = BookUsers::find($id);
     $data->status = \Request::input('status');
     $data->save();
     return redirect('operator/transactions');
 }