Check if calendar.list_events returns any tasks

Configuration
1

Heyhey
I use the new calendar.List_events event to give a telegram message showing my tasks for today.
This looks like this:

alias: AAAA Kalender GanztagesereignisseTest
description: ""
trigger: []
condition: []
action:
  - service: calendar.list_events
    data:
      duration:
        hours: 24
        minutes: 0
        seconds: 0
    target:
      entity_id: calendar.bestellen
    response_variable: calendartasks
  - service: notify.telegramflorian
    data:
      message: |-
        {% for event in calendartasks.events %} 
        {{event.summary}} {% endfor %}
      title: "*tasks today:*"
mode: parallel
max: 10

Ofcourse, if there are no tasks in this calendar, the message will be kinda useless.
Is there a way to check the amount of calendar.list_events return, to form an if statement?

2

Yes, you can check the number of events contained in the response variable with a count filter. Add the following to any If/Then, Choose, or standalone Condition action after your calendar.list_events action:

  - condition: template
    value_template: "{{ calendartasks.events | count > 0 }}"
1 Like
3

Thank you really mutch! its workin perfectly fine!
For others with same problems like me, here is my full code:

alias: AAAA Kalender GanztagesereignisseTest
description: ""
trigger: []
condition: []
action:
  - service: calendar.list_events
    data:
      duration:
        hours: 24
        minutes: 0
        seconds: 0
    target:
      entity_id: calendar.bestellen
    response_variable: calendartasks
  - if:
      - condition: template
        value_template: "{{ calendartasks.events | count > 0 }}"
    then:
      - service: notify.telegramflorian
        data:
          message: |-
            {% for event in calendartasks.events %} 
            {{event.summary}} {% endfor %}
          title: "*heute bestellen:*"
      - repeat:
          for_each: "{{ calendartasks.events }}"
          sequence:
            - service: shopping_list.add_item
              data:
                name: "{{ repeat.item.summary }}"
mode: parallel
max: 10
1 Like
4

You don’t need an if statement. Just do what Didgeridrew suggested.

5

I think i did? Oo

But I have another question.
In future ill completely remove my google calendar and switch to home assistant.
So ill have more calendars to check for events and give me a telegram message.
Is there a way to get only 1 telegram message for all calendars?
Lets say, ill run the code above twice. Telegram will send me 2 messages.
Is it possible to get this inside 1 message? So store the message in a variable or sth?

6

The Template Condition can be placed in line with the other actions. If the condition evaluates to true, the actions following it are executed, otherwise they are not.

alias: AAAA Kalender GanztagesereignisseTest
description: ""
trigger: []
condition: []
action:
  - service: calendar.list_events
    data:
      duration:
        hours: 24
        minutes: 0
        seconds: 0
    target:
      entity_id: calendar.bestellen
    response_variable: calendartasks
  - condition: template
    value_template: "{{ calendartasks.events | count > 0 }}"
  - service: notify.telegramflorian
    data:
      message: |-
        {% for event in calendartasks.events %} 
        {{event.summary}} {% endfor %}
      title: "*heute bestellen:*"
  - repeat:
      for_each: "{{ calendartasks.events }}"
      sequence:
        - service: shopping_list.add_item
          data:
            name: "{{ repeat.item.summary }}"
mode: parallel
max: 10