public void UpdateMedicine(int id)
        {
            Console.WriteLine("Podaj nowÄ… cenÄ™ leku: ");
            decimal  newPrice    = decimal.Parse(Console.ReadLine());
            Medicine oldMedicine = medicineRepository.LoadFromDB(id);
            Medicine newMedicine =
                new Medicine(oldMedicine.Name, oldMedicine.Manufacturer, newPrice, oldMedicine.WithPrescription);

            //medToUpdate.Price = newPrice;
            //Console.WriteLine(updatedMedicine.ToString());
            medicineRepository.UpdateObjectInDB(newMedicine);
            // todo: do rozbudowy edycja lekow i ich ilosci
        }