@Override
public BusinessResult recharge(String userId, String serialNumber) throws DataAccessException {
PointCard pointCard = mutableDataAccess.findById(PointCard.class, serialNumber);
if (pointCard == null) {
return new BusinessResult(BusinessResult.ResultStatus.FAIL, "充值失败，信用值卡序列号错误");
}
if (pointCard.isUsed()) {
return new BusinessResult(BusinessResult.ResultStatus.FAIL, "充值失败，该信用值卡已经使用过了");
}
User user = mutableDataAccess.findById(User.class, userId);
user.setCredits(user.getCredits() + pointCard.getCredits());
pointCard.setUsed(true);
mutableDataAccess.save(user);
mutableDataAccess.save(pointCard);
//
BusinessResult result =
new BusinessResult(
BusinessResult.ResultStatus.OK,
String.format("充值成功，您成功的在账号里充值<small>%s</small>信用值", pointCard.getCredits()));
return result;
}
