resolve(parent, args) {
  return Gadget.findById(args.id)
    .then(gadget => {
      gadget.name = args.name
      gadget.release_date = args.release_date,
      gadget.by_company = args.by_company,
      gadget.price = args.price
      return gadget.save()
    })
    .then(updatedGadget => updatedGadget)
    .catch(err => console.log(err))
}