def _insert(self, meter_reading: MeterReading,
pipeline: redis.client.Pipeline) -> None:
"""Helper method to insert a meter reading."""
reading_data = MeterReadingSchema().dump(meter_reading)
pipeline.xadd(self.key_schema.global_feed_key(),
reading_data,
maxlen=self.SITE_MAX_FEED_LENGTH)
pipeline.xadd(self.key_schema.feed_key(reading_data.get('site_id')),
reading_data,
maxlen=self.GLOBAL_MAX_FEED_LENGTH)
def _insert(self, meter_reading: MeterReading,
pipeline: redis.client.Pipeline) -> None:
"""Helper method to insert a meter reading."""
# START Challenge #6
global_key = self.key_schema.global_feed_key()
site_key = self.key_schema.feed_key(meter_reading.site_id)
pipeline.xadd(global_key, MeterReadingSchema().dump(meter_reading),
maxlen=self.GLOBAL_MAX_FEED_LENGTH)
pipeline.xadd(site_key, MeterReadingSchema().dump(meter_reading),
maxlen=self.SITE_MAX_FEED_LENGTH)
def _insert(self, meter_reading: MeterReading,
pipeline: redis.client.Pipeline) -> None:
"""Helper method to insert a meter reading."""
# START Challenge #6
field_values = MeterReadingSchema().dump(meter_reading)
pipeline.xadd(self.key_schema.global_feed_key(),
field_values,
maxlen=FeedDaoRedis.GLOBAL_MAX_FEED_LENGTH)
pipeline.xadd(self.key_schema.feed_key(meter_reading.site_id),
field_values,
maxlen=FeedDaoRedis.SITE_MAX_FEED_LENGTH)
def _insert(self, meter_reading: MeterReading,
pipeline: redis.client.Pipeline) -> None:
"""Helper method to insert a meter reading."""
# START Challenge #6
# Create variables for ease of use in redis command as well as avoid long statement
global_key = self.key_schema.global_feed_key()
site_key = self.key_schema.feed_key(meter_reading.site_id)
# Avoid repeating doing dump twice
serialized_meter_reading = MeterReadingSchema().dump(meter_reading)
pipeline.xadd(global_key, \
serialized_meter_reading, \
maxlen=self.GLOBAL_MAX_FEED_LENGTH)
pipeline.xadd(site_key, \
serialized_meter_reading, \
maxlen=self.SITE_MAX_FEED_LENGTH)
def get_recent(self, key: str, limit: int) -> List[MeterReading]:
return [
MeterReadingSchema().load(entry[1])
for entry in self.redis.xrevrange(key, count=limit)
]