def get_latest_saved_record(self, entity):
order = eval("self.data_schema.{}.desc()".format(
self.get_evaluated_time_field()))
#: 对于k线这种数据，最后一个记录有可能是没完成的，所以取两个
#: 同一周期内只保留最新的一个数据
records = get_data(
entity_id=entity.id,
provider=self.provider,
data_schema=self.data_schema,
order=order,
limit=2,
return_type="domain",
session=self.session,
level=self.level,
)
if records:
#: delete unfinished kdata
if len(records) == 2:
if is_in_same_interval(t1=records[0].timestamp,
t2=records[1].timestamp,
level=self.level):
self.session.delete(records[1])
self.session.flush()
return records[0]
return None
def get_latest_saved_record(self, entity):
# step = time.time()
order = eval('self.data_schema.{}.desc()'.format(self.get_evaluated_time_field()))
# self.logger.info("get order: {}".format(time.time()-step))
# 对于k线这种数据，最后一个记录有可能是没完成的，所以取两个，总是删掉最后一个数据，更新之
# self.logger.info("record info: {}, {}, {}".format(entity.id, order, self.level))
records = get_data(region=self.region,
entity_id=entity.id,
provider=self.provider,
data_schema=self.data_schema,
order=order,
limit=2,
return_type='domain',
session=self.session,
level=self.level)
# self.logger.info("get record: {}".format(time.time()-step))
if records:
# delete unfinished kdata
if len(records) == 2:
if is_in_same_interval(t1=records[0].timestamp, t2=records[1].timestamp, level=self.level):
self.session.delete(records[0])
self.session.flush()
return records[1]
return records[0]
return None