Action/template is working in develeoper tools but not in button

Configuration Frontend
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1

Hi,

this issue drives me grazy. The simplified code for the action I am looking at is

action: vacuum.send_command
target:
  entity_id: vacuum.roborock_s7_maxv
data:
  command: app_segment_clean
  params:
    - segments: >
           {%- set mapper = {'Room23' : '[23]'} -%} 
           {%- set roomnr = mapper['Room23'] -%}
           {{- roomnr -}}

and it works as expected in Developer Tools.

However, basically the same code does not trigger the action in the button below

show_name: true
show_icon: true
type: button
entity: vacuum.roborock_s7_maxv
tap_action:
  action: perform-action
  perform_action: vacuum.send_command
  target:
    entity_id: vacuum.roborock_s7_maxv
  data:
    command: app_segment_clean
    params:
      - segments: >
          {%- set mapper = {'Room23' : '[23]'} -%}  {%- set roomnr =
          mapper['Room23'] -%} {{- roomnr -}}

The odd line breaks in the template part at the end are generated on Save by Home Assistant…
Replacing the last part with hard coded value resolves the issue

    params:
      - segments: [23]

But I need to use the mapper for different rooms (as I am actually using a input_select). For me it looks like the multiline part of yaml is not working. However, it is more likely that I am doing something wrong.

Any hints?

2

what errors are in your logs? Segments expects a list or a string that looks like a list. It depends on a few things. I’ve helped people in the past with this and you typically need to template the entire params field.

3

You can’t use templates in the standard Button card.

Move the action to a script then configure the Button card’s tap_action to call the script.

4

Ah, good catch

5

I do not see anything related in the logs

Yes. Because of this the value template generates a list with one value. It works in developer tools and as hard coded value but not in the action of the button. I also tried to use a list with two values. Same result.

6

see what 123 wrote

7

This will explain it. I tried it also with custom:button-card. But this obviously require js.
Thanks

1 Like
8

With the exception of the Markdown card, none of Home Assistant’s cards support (Jinja2) templates.

Some custom cards support either Javascript or Jinja2 templates.