Question

我正在使用GreenDao制作一个Android应用程序，我有这两个实体：

@Entity
public class Quiz {

    @Id(autoincrement = true)
    private Long id;

    private Date date;

    private String type;

    @ToMany(referencedJoinProperty = "quizId")
    private List<Answer> answers;
}

@Entity
public class Answer {

    @Id(autoincrement = true)
    private Long id;

    private int answer;

    private float value;

    private int questionNumber;

    private String type;

    private Long quizId;
}

我正在尝试使用以下代码获取测验列表：

DaoSession daoSession = AndroidAdapter.getDaoSession();
QuizDao quizDao = daoSession.getQuizDao();
List<Quiz> quizs = quizDao.loadAll();

但答案清单总是空着，我做错了什么？

Answer 1

我的AndroidAdapter类：

public class AndroidAdapter {

    public static Context getContext() {
        return AppApplication.getContext();
    }

    public static DaoSession getDaoSession() {
        return AppApplication.getDaoSession();
    }
}

和AppApplication类

@Override
public void onCreate() {
    super.onCreate();

    context = this;

    DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(this,ENCRYPTED ? "exam-db-encrypted" : "exam-db");
    Database db = ENCRYPTED ? helper.getEncryptedWritableDb("exam-secret") : helper.getWritableDb();
    daoSession = new DaoMaster(db).newSession();

    this.addAllEvents();
}

public static DaoSession getDaoSession() {
    return daoSession;
}

GreenDao列出具有实体列表的实体

1 个答案: