How to get the state of lights (on/off) as a condition with the area_id?

Configuration
,
1

So I have an automation that takes the area_id of the trigger:

{area_id(trigger.entity_id)}}

And fires that

What I’d like to do is use this same area_id and use it as a condition, so the automation only fires if the lights are off.

Something like…

{{is_state('light.area_id(trigger.entity_id)', 'on')}}

But it isn’t translating that area_id(trigger.entity_id) to the area_id and interpolating it into the entity name.

Is there any way to do this?

Thanks in advance!

2

You want the condition to confirm that all lights in the given area_id are off?

3

Yes, exactly.

4 
{{ expand(area_entities(area_name(trigger.entity_id)) | select('match', 'light'))
   | selectattr('state', 'eq', 'on') | list | count == 0 }}
5 Likes
5

It works, thank you!

6

You’re welcome!

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1 Like
7

For some reason area_name did not work for me, but area_id did work. So just in case someone else faces the same problem:

{{expand(area_entities(area_id(trigger.event.data.device_id))|select('match', 'light'))|selectattr('state', 'eq', 'on')|list|count == 0}}

8

That’s odd because area_name accepts the id of a device, entity, or area and returns an area name. area_entities accepts an area name or id.

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9

Thanks for the head start @123.

To elaborate on this. I wanted to see if any light in the house is on. So I used the light domain to do this.

But some lights (bar1 to 6) are joined as a group, so I wanted to exclude those to keep the count correct.

Unfortunately I could not find a (working) way to exlclude these entities using some sort of (regular)expression.

{% set excluded_lights = ['light.bar1_light', 'light.bar2_light', 'light.bar3_light', 'light.bar4_light', 'light.bar5_light', 'light.bar6_light'] %}
{{ expand(states.light)|rejectattr('entity_id', 'in', excluded_lights)|selectattr('state', 'eq', 'on')|list|count}}