HA插件更新机制

方式1

以和风天气为实例

计时方式: TIME_BETWEEN_UPDATES = timedelta(seconds=1800)

首先导入 from homeassistant.util import Throttle

在 WeatherData类中的update函数中加入装饰器 @Throttle(TIME_BETWEEN_UPDATES)

class WeatherData(object):
    @Throttle(TIME_BETWEEN_UPDATES)
    def update(self):
        pass

在 HeWeatherSensor 类中的update函数中调用Data类中的更新函数

class HeWeatherSensor(Entity):
    def update(self):
        self._data.update()
        self._updatetime = self._data.updatetime

平台设置内传入参数，下同

def setup_platform(hass, config, add_devices, discovery_info=None):
    _LOGGER.info("Setup platform sensor.HeWeather")
    city = config.get(CONF_CITY)
    appkey = config.get(CONF_APPKEY)
    aqi_city = config.get(CONF_AQI_CITY)
    data = WeatherData(hass, city, appkey, aqi_city)

    dev = []
    for option in config[CONF_OPTIONS]:
        dev.append(HeWeatherSensor(data, option))
    add_devices(dev, True)

方式2

在Data类中 调用Throttle函数

class Data(object):
    """Get the latest data from Darksky."""

    def __init__(self, **args):

        self.update = Throttle(interval)(self._update)


    def _update(self):
        # 更新操作
        pass

然后在实体类中调用数据类的更新

class Sensor(Entity):
    """Implementation of a Dark Sky sensor."""

    def __init__(self, forecast_data, **args):
        self.forecast_data = forecast_data

    def update(self):
        self.forecast_data.update()