Cannot return the correct state. Always defaults to false. What I'm doing wrong?

Configuration
1 
template:
  - sensor:
      - name: "Near Home"
        unique_id: "near_home_sensor"
        state: >
          {% set result = false %}
          {% set persons = states.person | selectattr('state', 'eq', 'home') | list %}

          {% for person in persons %}
            {% set device_tracker = state_attr(person.entity_id, 'source') | replace('device_tracker.', '') %}
            {% set connection_sensor = 'sensor.' ~ device_tracker ~ '_connection_type' %}
            {% set connection_type = states(connection_sensor) %}

            {% if connection_type != 'Wi-Fi' %}
              {% set result = true %}
            {% endif %}
          {% endfor %}

          {{ result }}
2

Look here, search for “Scoping Behavior”

TL;DR: using set creates a newly scoped variable result inside its closest block. You need to use an alternative method to get the value of result out (as explained in the documentation)

3

Here is my new code. But still doesn’t work.What I’m doing wrong? Please help.

  - sensor:
      - name: "Not Yet Home"
        unique_id: "not_yet_home_sensor"
        state: >
          {% set persons = states.person | selectattr('entity_id', 'defined') | list %}
          {% set non_wifi_count = 0 %}

          {% for person in persons %}
            {% set device_tracker = state_attr(person.entity_id, 'source') %}
            {% if device_tracker %}
              {% set device_name = device_tracker | replace('device_tracker.', '') %}
              {% set connection_sensor = 'sensor.' ~ device_name ~ '_connection_type' %}
              {% set connection_type = states(connection_sensor) %}
              
              {% if connection_type != 'Wi-Fi' %}
                {% set non_wifi_count = non_wifi_count + 1 %}
              {% endif %}
            {% endif %}
          {% endfor %}

          {% if non_wifi_count > 0 %}
            true
          {% else %}
            false
          {% endif %}
4

The documentation that I linked to provides an answer on how to define a “variable” outside of a block and set its value from within a block:

{% set ns = namespace(found=false) %}
{% for item in items %}
    {% if item.check_something() %}
        {% set ns.found = true %}
    {% endif %}
    * {{ item.title }}
{% endfor %}
Found item having something: {{ ns.found }}
1 Like
5

Thanks for the fast answer. Can you please correct my code so I can see how it should be done the right way. I would really appreciate it.

6

Thanks. It worked!

1 Like