Question

如何根据我从令牌获取的user_id进行祖先的查询？

这是我的代码：

class MyUserClass(EndPointModel):
  user_object = ndb.UserProperty(required=True, indexed=False)

class MyModel(EndPointModel):
  ...

    @MyModel.method(user_required=True, name="model.add", path="model")
    def add_mymodel(self, my_model):
      gplus_user_id = auth_util.get_google_plus_user_id()
      if gplus_user_id is None:
        raise endpoints.ForbiddenException(NidAppUser.NO_GPLUS_ID)

      user = MyUserClass.get_or_insert(gplus_user_id, user_object=endpoints.get_current_user())
      my_model.parent = user.key.string_id()
      my_model.put()
      return my_model 

    @MyModel.query_method(user_required=True, name="list.mymodel", path="models",
                          query_fields=('order','attr1',))
    def list_models(self, query):
      gplus_user_id = auth_util.get_google_plus_user_id()
      if gplus_user_id is None:
        raise endpoints.ForbiddenException(NidAppUser.NO_GPLUS_ID)

      ## Here or in thsi decorator function I want to do something like
      ## query.ancestor.(ndb.Key(MyClassUser, gplus_user_id)) (such as the DB Datastore)
      ## to return only the query of MyModels that belong to the current user
      return query

我需要通过MyUserClass键的键创建一个查询祖先。我不想使用该解决方案在我的模型中添加字段所有者，因为查询祖先比过滤器更快，它真的帮助我组织我的数据库。

谢谢

Answer 1

您可以构建基于祖先的查询，如下所示：

myancestorkey = ndb.Key(MyUserClass, gplus_user_id)
myquery = MyModel.query(ancestor=myancestorkey)

Answer 2

使用endpoints_proto_datastore，您可以执行以下操作：

@MyModel.query_method(user_required=True, name="list.mymodel",
                      path="models", query_fields=('order','attr1',))
def list_models(self, query):

    # Returns only MyModels that belong to the current g+ user

    return query.filter(MyModel.parent == auth_util.
                        get_google_plus_user_id())

由祖先进行的EndPointsModel查询

2 个答案: