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homeassistantbyOtkaz

How do you use "is defined" in a script?

I'm trying to get a script built. I want to check if a variable exist and include it if it does. Just really struggling to figure out the formatting. Something like

script:
  sequence:
    target:
      entity_id: "{{ entity }}"
    {% if variable is defined %}
      data: "{{ variable }}"
    {% endif %}
View original on lemmy.world
23
Comments5
nottellingreply
lemmy.world

This looks like the right answer, since OP's jinja is correct.

OP, you can go to developer tools to test your template syntax against the live data in HA.

2
Otkazreply
lemmy.world

Is it possible to do this in a way that completely omits data: from the command if the variable isn't defined?

2
Otkazreply
lemmy.world

It worked the same as your suggestion above. In cases the variable is used it does works as intended but in the situation the variable is not set it's still sending data: just with a blank value.

1
Otkazreply
lemmy.world

When I tried playing with omit in the template editor I got an error about omit being undefined so probably not built in. Bummer because that would be a very elegant solution to this. I'm going to put this down for the night and try picking it back up tomorrow. I really appreciate all the suggestions. Hopefully it will lead me to a solution.

1
Otkazreply
lemmy.world

To give more context I'm working on a media control dashboard. The script or rather scripts I have to send commands to kodi is as follows

kodi_control:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data:
      method: '{{ kodi_method }}'

kodi_control_playback:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data:
      method: '{{ kodi_method }}'
      playerid: '{{ kodi_playerid }}'

kodi_control_subtitles:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data:
      method: '{{ kodi_method }}'
      action: '{{ kodi_action }}'

kodi_control_seek:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data:
      method: '{{ kodi_method }}'
      playerid: '{{ kodi_playerid }}'
      value: '{{ kodi_value }}'

kodi_control_playlist:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data:
      method: '{{ kodi_method }}'
      window: '{{ kodi_window }}'
      parameters: '{{ [ kodi_parameters ] }}'

I would like to condense all of this down to a single script using "is defined" to omit the parts not needed for certain commands so something like

kodi_control:
  sequence:
  - service: kodi.call_method
    target:
      entity_id: '{{ kodi_entity }}'
    data: >-
      method: '{{ kodi_method }}'
      {% if kodi_playerid is defined %}
        playerid: '{{ kodi_playerid }}'
      {% endif %}
      {% if kodi_action is defined %}
        action: '{{ kodi_action }}'
      {% endif %}
      {% if kodi_value is defined %}
        value: '{{ kodi_value }}'
      {% endif %}
      {% if kodi_window is defined %}
        window: '{{ kodi_window }}'
      {% endif %}
      {% if kodi_parameters is defined %}
        parameters: '{{ [ kodi_parameters ] }}'
      {% endif %}

Problem with the above is I get "result is not a dictionary"

2

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How do you use "is defined" in a script? | Spyke