我有两个课程:Game
和User
User
有一系列游戏(ManyToOne关系)。
如何向保存在数据库中的用户添加其他游戏。
我是这样做的:
@RequestMapping(value = "/game/play", method = RequestMethod.POST)
@ResponseBody
public User indexRequestPlay(@RequestParam String username, @RequestParam String password) {
User user = userRepository.findByUsernameAndPassword(username, password);
Random random = new Random();
int userScore = random.nextInt(5) + 1;
int npcScore = random.nextInt(5) + 1;
Date date = new Date();
List<Date> startSessions = user.getStartSessions();
startSessions.add(date);
user.setStartSessions(startSessions);
Game game = new Game(userScore, npcScore, date);
List<Game> games = new ArrayList<Game>();
games.add(game);
games.addAll(user.getGames());
user.setGames(games);
userRepository.save(user);
return user;
}
答案 0 :(得分:0)
以下是答案:
@RequestMapping(value = "/game/play", method = RequestMethod.POST)
@ResponseBody
public User indexRequestPlay(@RequestParam String username, @RequestParam String password) {
User user = userRepository.findByUsernameAndPassword(username, password);
Random random = new Random();
int userScore = random.nextInt(5) + 1;
int npcScore = random.nextInt(5) + 1;
/////////////////////////////////////////////////////////////////////////////////
// aici adaug un camp in user.
user.getStartSessions().add(new Date());
/////////////////////////////////////////////////////////////////////////////////
Game game = new Game(userScore, npcScore, new Date());
game.setUser(user);
user.getGames().add(game);
userRepository.save(user);
return user;
}