Perform actions on a set of entities serially - Loops in blueprints?

Configuration Blueprints
1

The generalized version of what I’m trying to do is: Take a set of entities (an array input in a blueprint) and then do a set of actions for each of them. In my case, I need this done in a serial fashion.

More specifically, I’m creating a “winterize” routine for my sprinkler system. I have a rachio smart sprinkler system and each zone shows up as a switch in Home Assistant. In the fall, I’ll be hooking up an air compressor to the water line. I need each zone to get turned on for about 60 seconds, then a delay for a couple minutes so the compressor can catch up. Right now, I just copy/pasted the actions for all the relevant zones. But a blueprint would just be more fun. :slight_smile:

My attempts to do this in a blueprint with some templating have failed. Here’s some non functional code to better illustrate my goal.

blueprint:
  name: Loop Test
  description: Tests looping through entities.
  domain: automation
  source_url: "..."
  input:
    entities:
      name: Entities To Process
      description: The collection of entities to loop through.
      default: []
      selector:
        entity:
          filter:
            domain: switch
          multiple: true

variables:
  entities: !input entities

mode: restart

trigger:
  ...


action:
  {% for entityToProcess in entities %}
  - service: switch.turn_on
    data: {}
    target:
      entity_id: {{ entityToProcess }}

  - delay:
      hours: 0
      minutes: 0
      seconds: 30
      milliseconds: 0

  - service: switch.turn_off
    data: {}
    target:
      entity_id: {{ entityToProcess }}

  - delay:
      hours: 0
      minutes: 5
      seconds: 0
      milliseconds: 0

  {% endfor %}

Eventually, the delay amounts would become inputs too so that I can tweak the process.

2

I recommend using the documents to find this information out. All action types are shown in them. This example is even provided (missing the template for for_each).

- repeat:
    for_each: "{{ entities }}"
    sequence:
    - service: switch.turn_on
      target:
        entity_id: "{{ repeat.item }}"
    - delay: "00:00:30"
    - service: switch.turn_off
      target:
        entity_id: "{{ repeat.item }}"
    - delay: "00:05:00"
3

Thanks for the solution. I do poke around the docs or google search for the answer but my search-foo was off today. Thanks again.

4

FYI, when you want to learn about automation actions, click in the actions in the sidebar which will Lea you to script syntax. Which contains every option you can do in a action.

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