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add unavailable status with an example (#22607)

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jugla 2022-05-09 13:09:44 +02:00 committed by GitHub
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source/_docs/configuration/templating.markdown
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@ -72,7 +72,7 @@ Not supported in [limited templates](#limited-templates).
- Iterating `states` will yield each state sorted alphabetically by entity ID. - Iterating `states` will yield each state sorted alphabetically by entity ID.
- Iterating `states.domain` will yield each state of that domain sorted alphabetically by entity ID. - Iterating `states.domain` will yield each state of that domain sorted alphabetically by entity ID.
- `states.sensor.temperature` returns the state object for `sensor.temperature` (avoid when possible, see note below). - `states.sensor.temperature` returns the state object for `sensor.temperature` (avoid when possible, see note below).
- `states('device_tracker.paulus')` will return the state string (not the object) of the given entity or `unknown` if it doesn't exist. - `states('device_tracker.paulus')` will return the state string (not the object) of the given entity, `unknown` if it doesn't exist, `unavailable` if the object exists but is not yet available.
- `is_state('device_tracker.paulus', 'home')` will test if the given entity is the specified state. - `is_state('device_tracker.paulus', 'home')` will test if the given entity is the specified state.
- `state_attr('device_tracker.paulus', 'battery')` will return the value of the attribute or None if it doesn't exist. - `state_attr('device_tracker.paulus', 'battery')` will return the value of the attribute or None if it doesn't exist.
- `is_state_attr('device_tracker.paulus', 'battery', 40)` will test if the given entity attribute is the specified state (in this case, a numeric value). Note that the attribute can be `None` and you want to check if it is `None`, you need to use `state_attr('sensor.my_sensor', 'attr') == None`. - `is_state_attr('device_tracker.paulus', 'battery', 40)` will test if the given entity attribute is the specified state (in this case, a numeric value). Note that the attribute can be `None` and you want to check if it is `None`, you need to use `state_attr('sensor.my_sensor', 'attr') == None`.
@ -119,6 +119,10 @@ Other state examples:
Paulus is at {{ states('device_tracker.paulus') }}. Paulus is at {{ states('device_tracker.paulus') }}.
{% endif %} {% endif %}
#check sensor.train_departure_time state
{% if states('sensor.train_departure_time') in ("unavailable", "unknown") %}
{{ ... }}
{% set state = states('sensor.temperature') %}{{ state | float + 1 if is_number(state) else "invalid temperature" }} {% set state = states('sensor.temperature') %}{{ state | float + 1 if is_number(state) else "invalid temperature" }}
{% set state = states('sensor.temperature') %}{{ (state | float * 10) | round(2) if is_number(state)}} {% set state = states('sensor.temperature') %}{{ (state | float * 10) | round(2) if is_number(state)}}