django – 如何通过tastypie公开manytomany字段作为资源？

# Joined Goal Resource
class JoinedGoalResource(ModelResource):
  user = fields.ForeignKey(UserResource,'user')
  joined_goals = fields.ManyToManyField(GoalResource,'joined_goals',full=True)

  class Meta:
    authentication = Authentication()
    authorization = Authorization()
    queryset = UserProfile.objects.all()
    resource_name = 'joined_goal'
    allowed_methods = ['get','post','put']
    filtering = {
      'user': ALL_WITH_RELATIONS
    }

上面代码的问题在于它使用UserProfile模型作为其查询集,因此如果我发布帖子,获取或放在API端点上,它将影响UserProfile而不是用户的joined_goals.

编辑：
我已经更改了我的代码,以便加入的资源覆盖obj_create方法,只是添加到登录用户的连接目标列表中.问题是该方法要求我返回一个包.如何创建要返回的包？我正在做这样的事情：

goal_resource = GoalResource
goal_obj = goal_resource.obj_get(pk=1)
goal_bundle = goal_resource.build_bundle(obj=goal_obj,request=request)
return goal_bundle

但是当接受pk = 1的参数时,obj_get不起作用