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Refactor unit of measurement

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* Add dict with map of units to v_types.
* Avoid numerous if, elif branches and return statements.
* Add custom unit decoupled from other units.
This commit is contained in:
MartinHjelmare 2016-01-27 15:26:52 +01:00
parent 1de7dcdb5f
commit 575e97a051
1 changed files with 25 additions and 32 deletions
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57
homeassistant/components/sensor/mysensors.py
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@ -129,38 +129,31 @@ class MySensorsSensor(Entity):
@property
def unit_of_measurement(self):
"""Unit of measurement of this entity."""
# pylint:disable=too-many-return-statements
prefix = ''
if float(self.gateway.version) >= 1.5 and \
self.gateway.const.SetReq.V_UNIT_PREFIX in self._values:
prefix = self._values[self.gateway.const.SetReq.V_UNIT_PREFIX]
if self.value_type == self.gateway.const.SetReq.V_TEMP:
return TEMP_CELCIUS # HA will convert to degrees F if needed
elif self.value_type == self.gateway.const.SetReq.V_HUM or \
self.value_type == self.gateway.const.SetReq.V_DIMMER or \
float(self.gateway.version) >= 1.5 and \
self.value_type == self.gateway.const.SetReq.V_PERCENTAGE or \
self.value_type == self.gateway.const.SetReq.V_LIGHT_LEVEL:
return '%'
elif self.value_type == self.gateway.const.SetReq.V_WEIGHT:
return '{}g'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_DISTANCE:
return '{}m'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_IMPEDANCE:
return '{}ohm'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_WATT:
return '{}W'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_KWH:
return '{}kWh'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_FLOW:
return '{}m'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_VOLUME:
return '{}m3'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_VOLTAGE:
return '{}V'.format(prefix)
elif self.value_type == self.gateway.const.SetReq.V_CURRENT:
return '{}A'.format(prefix)
return None
# HA will convert to degrees F if needed
unit_map = {
self.gateway.const.SetReq.V_TEMP: TEMP_CELCIUS,
self.gateway.const.SetReq.V_HUM: '%',
self.gateway.const.SetReq.V_DIMMER: '%',
self.gateway.const.SetReq.V_LIGHT_LEVEL: '%',
self.gateway.const.SetReq.V_WEIGHT: 'kg',
self.gateway.const.SetReq.V_DISTANCE: 'm',
self.gateway.const.SetReq.V_IMPEDANCE: 'ohm',
self.gateway.const.SetReq.V_WATT: 'W',
self.gateway.const.SetReq.V_KWH: 'kWh',
self.gateway.const.SetReq.V_FLOW: 'm',
self.gateway.const.SetReq.V_VOLUME: 'm3',
self.gateway.const.SetReq.V_VOLTAGE: 'V',
self.gateway.const.SetReq.V_CURRENT: 'A',
}
unit_map_v15 = {
self.gateway.const.SetReq.V_PERCENTAGE: '%',
}
if float(self.gateway.version) >= 1.5:
if self.gateway.const.SetReq.V_UNIT_PREFIX in self._values:
return self._values[
self.gateway.const.SetReq.V_UNIT_PREFIX]
unit_map.update(unit_map_v15)
return unit_map.get(self.value_type)
@property
def device_state_attributes(self):