这个问题是对这里提出的问题的扩展:Usingfactory_girlinRailswithassociationsthathaveuniqueconstraints.Gettingduplicateerrors所提供的答案对我来说非常有效。这是它的样子:#Createsaclassvariableforfactoriesthatshouldbeonlycreatedonce.moduleFactoryGirlclassSingleton@@singletons={}defself.execute(factory_key)begin@@singletons[factory_key]=Fa

我收到以下hibernate异常:Matchup.awayTeam上的@OneToOne或@ManyToOne引用了一个未知实体:Team简化的Matchup类如下所示:@EntitypublicclassMatchupimplementsSerializable{protectedTeamawayTeam;@ManyToOne@JoinColumn(name="away_team_id")publicTeamgetAwayTeam(){returnawayTeam;}}简化的Team类如下所示:@EntitypublicclassTeamimplementsSerializable{

我收到以下hibernate异常:Matchup.awayTeam上的@OneToOne或@ManyToOne引用了一个未知实体:Team简化的Matchup类如下所示:@EntitypublicclassMatchupimplementsSerializable{protectedTeamawayTeam;@ManyToOne@JoinColumn(name="away_team_id")publicTeamgetAwayTeam(){returnawayTeam;}}简化的Team类如下所示:@EntitypublicclassTeamimplementsSerializable{