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Fix noisy error on startup. Make callbacks code consistent.

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pavoni
2016-03-06 19:19:07 +00:00
parent b16c17fae5
commit 4e3c8a8697
3 changed files with 14 additions and 10 deletions
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11
homeassistant/components/sensor/template.py
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@@ -86,12 +86,13 @@ class SensorTemplate(Entity):
self._unit_of_measurement = unit_of_measurement
self._template = state_template
self.update()
self.hass.bus.listen(EVENT_STATE_CHANGED, self._event_listener)
def _update_callback(_event):
""" Called when the target device changes state. """
self.update_ha_state(True)
self.hass.bus.listen(EVENT_STATE_CHANGED, _update_callback)
def _event_listener(self, event):
""" Called when the target device changes state. """
if not hasattr(self, 'hass'):
return
self.update_ha_state(True)
@property
def name(self):