Denon volume automation error

Configuration
1

Not sure it’s a concern but I have an automation for my Denon receiver volume and although visually in the system it seems to work I get a lot of errors in the logs. The whole automation block is:

- alias: "Denon Set Volume"
  initial_state: 'on'
  trigger:
    platform: state
    entity_id: input_number.denon_volume
  action:
    - service: media_player.volume_set
      data_template:
        entity_id: media_player.denon_x2200w
        volume_level: >
          {{states('input_number.denon_volume') | int / 100}}

- alias: "Denon Update Volume Slider"
  initial_state: 'on'
  trigger:
    - platform: state
      entity_id: sensor.denon_volume
    - platform: homeassistant
      event: start
  condition:
    condition: state
    entity_id: media_player.denon_x2200w # receiver must be on to set the volume, without this would throw error on startup
    state: 'on'
  action:
    - delay:
        seconds: 3
    - service: input_number.set_value
      data_template:
        entity_id: input_number.denon_volume
        value: '{{ trigger.to_state.state }}'

The errors I’m seeing are and not sure if it’s caused from the way HA loads things or delays in loading:

2020-11-23 12:47:34 ERROR (MainThread) [homeassistant.components.automation.denon_update_volume_slider] Denon Update Volume Slider: Error executing script. Unexpected error for call_service at pos 2: Error rendering data template: UndefinedError: 'dict object' has no attribute 'to_state'
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 351, in async_render
    render_result = compiled.render(kwargs)
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 1090, in render
    self.environment.handle_exception()
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/usr/local/lib/python3.8/site-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.8/site-packages/jinja2/sandbox.py", line 407, in getattr
    value = getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'dict object' has no attribute 'to_state'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 144, in async_prepare_call_from_config
    service_data.update(template.render_complex(config[conf], variables))
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 91, in render_complex
    return {
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 92, in <dictcomp>
    render_complex(key, variables): render_complex(item, variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 96, in render_complex
    return value.async_render(variables)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 353, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: UndefinedError: 'dict object' has no attribute 'to_state'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 253, in _async_step
    await getattr(
  File "/usr/src/homeassistant/homeassistant/helpers/script.py", line 432, in _async_call_service_step
    domain, service, service_data = async_prepare_call_from_config(
  File "/usr/src/homeassistant/homeassistant/helpers/service.py", line 146, in async_prepare_call_from_config
    raise HomeAssistantError(f"Error rendering data template: {ex}") from ex
homeassistant.exceptions.HomeAssistantError: Error rendering data template: UndefinedError: 'dict object' has no attribute 'to_state'
2020-11-23 12:47:34 ERROR (MainThread) [homeassistant.components.automation.denon_update_volume_slider] While executing automation automation.denon_update_volume_slider
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 351, in async_render
    render_result = compiled.render(kwargs)
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 1090, in render
    self.environment.handle_exception()
  File "/usr/local/lib/python3.8/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "/usr/local/lib/python3.8/site-packages/jinja2/_compat.py", line 28, in reraise
    raise value.with_traceback(tb)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.8/site-packages/jinja2/sandbox.py", line 407, in getattr
    value = getattr(obj, attribute)
jinja2.exceptions.UndefinedError: 'dict object' has no attribute 'to_state'
2

This is because you also trigger on HA restart and then trigger.to_state.state will fail.

Try rwplacing {{ trigger.to_state.state }} with {{ states('sensor.denon_volume') | int }}

3

Thanks for the help. Looks like it errors if I leave out the single quotes around the brackets I originally had, and if I add them back in errors due to the double set of single quotes. Does doing like:

'{{ states("sensor.denon_volume") | int }}'

work? Or does it have to be different like

"{{ states('sensor.denon_volume') | int }}"

?

or

'{{ states(sensor.denon_volume) | int }}'

or

'{{ states(''sensor.denon_volume'') | int }}'

Note around the sensor.denon_volume it’s two single quotes on each side if that is an escape value or something.

Wasn’t sure how the single vs double quotes work.

4

The first two you posted are fine, either only single quotes inside the curly brackets and double quotes outside OR double quotes outside the curly brackets and single quotes inside

5

Thanks Burningstone. Much appreciated. Now a bunch of errors are no longer showing in my log.

1 Like