我有一个这样的多对多关联:
@Entity
public class User extends Model implements RoleHolder {
@ManyToMany(cascade=CascadeType.ALL)
public List<Task> tasks;
}
然后我这样做:
User u = Application.getLocalUser(session());
u.tasks.clear();
for (Task t : tasksToAdd)
u.tasks.add(t);
u.saveManyToManyAssociations("tasks");
u.update()
但是当我尝试在我的 Controller-Action 中读取 Collection 时,只有一个“BeanList deferred”-Message
User u = Application.getLocalUser(session());
return ok(tasks.render(u.tasks));
谢谢您的帮助