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Revert "Added note about template triggers (#4018)" (#4097)

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Anders Melchiorsen 2017-12-08 23:52:39 +01:00 committed by GitHub
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source/_docs/automation/trigger.markdown
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@ -138,10 +138,6 @@ The US Naval Observatory has a [tool](http://aa.usno.navy.mil/data/docs/AltAz.ph
### {% linkable_title Template trigger %} ### {% linkable_title Template trigger %}
<p class='note warning'>
If your template trigger has no `entity_id` listed, then it is evaluted on *every* state change for *every* entity. Instead you should create a [template sensor](/components/sensor.template/) or [template binary sensor](/components/binary_sensor.template/) and use that in your automation.
</p>
Template triggers work by evaluating a [template] on each state change. The trigger will fire if the state change caused the template to render 'true'. This is achieved by having the template result in a true boolean expression (`{% raw %}{{ is_state('device_tracker.paulus', 'home') }}{% endraw %}`) or by having the template render 'true' (example below). Template triggers work by evaluating a [template] on each state change. The trigger will fire if the state change caused the template to render 'true'. This is achieved by having the template result in a true boolean expression (`{% raw %}{{ is_state('device_tracker.paulus', 'home') }}{% endraw %}`) or by having the template render 'true' (example below).
With template triggers you can also evaluate attribute changes by using is_state_attr (`{% raw %}{{ is_state_attr('climate.living_room', 'away_mode', 'off') }}{% endraw %}`) With template triggers you can also evaluate attribute changes by using is_state_attr (`{% raw %}{{ is_state_attr('climate.living_room', 'away_mode', 'off') }}{% endraw %}`)
@ -149,7 +145,6 @@ With template triggers you can also evaluate attribute changes by using is_state
automation: automation:
trigger: trigger:
platform: template platform: template
entity_id: device_tracker.paulus
value_template: "{% raw %}{% if is_state('device_tracker.paulus', 'home') %}true{% endif %}{% endraw %}" value_template: "{% raw %}{% if is_state('device_tracker.paulus', 'home') %}true{% endif %}{% endraw %}"
``` ```