[英]Passing objects as parameters in SugarORM
我有一个扩展SugarRecord的对象,如下所示:
public class SavedDraft extends SugarRecord {
private String name;
private String difficulty;
private int sport_id;
private LocalActivity localActivity;
public SavedDraft() {
}
public SavedDraft(String name, String difficulty, int ID, LocalActivity localActivity) {
this.name = name;
this.difficulty = difficulty;
this.sport_id = ID;
this.localActivity = localActivity;
}
}
问题是当我尝试从数据库中获取localActivity对象时,我总是得到一个null对象(参见:SavedDraft.findById(SavedDraft.class,1).getLocalActivity()),我只是想知道是否可以将对象保存为SugarORM中的参数。
这将是一种关系,您还需要LocalActivity来扩展SugarRecord。
请参阅Book and Author的文档: http : //satyan.github.io/sugar/creation.html
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.