def sensor_state_view(id: int, sensor: Sensor):
"""Sensor state view.
This returns a little html snippet with a plot of the most recent state of the sensor.
Only works for power sensors at the moment.
TODO: no need to only support power plots in the future. Might make it optional.
"""
if not is_power_unit(sensor.unit):
return """"<script type="text/javascript">
console.log("State not available. Sensor is not a power sensor.");
</script>"""
time_str, plot_html_str = get_latest_power_as_plot(sensor, small=True)
return plot_html_str
def _get_latest_power_plot(asset: GenericAsset) -> Tuple[str, str]:
power_sensor: Optional[Sensor] = None
if asset._sa_instance_state.transient:
sensors = Sensor.query.filter(
Sensor.generic_asset_id == asset.id).all()
else:
sensors = asset.sensors
for sensor in sensors:
if is_power_unit(sensor.unit):
power_sensor = sensor
break
if power_sensor is None:
return "", ""
else:
return get_latest_power_as_plot(power_sensor)
def asset_state_view(id: str, asset: GenericAsset):
"""Asset state view.
This returns a little html snippet with a plot of the most recent state of the
first found power sensor.
TODO: no need to only support power plots in the future. Might make it optional.
"""
power_sensor: Optional[Sensor] = None
for sensor in asset.sensors:
if is_power_unit(sensor.unit):
power_sensor = sensor
break
if power_sensor is None:
return (
"""<script type="text/javascript">
console.log("State not available. Asset %s has no power sensors.");
</script>"""
% id
)
time_str, plot_html_str = get_latest_power_as_plot(power_sensor, small=True)
return plot_html_str
def test_is_power_unit(unit: str, power_unit: bool):
assert is_power_unit(unit) is power_unit
def measures_power(self) -> bool:
"""True if this sensor's unit is measuring power"""
return is_power_unit(self.unit)