Hi, I have some problem with passing a variable in automation. I am trying to pass a collection of sensors but it failed. It is a standard enumeration of entities with battery_class and everything works great in the template editor, but I don’t know why it doesn’t work in automation. I must have missed something. Can anyone advise?
This is the part of the automation I am trying to pass the {{ monitored }} variable. The final notification displays two different values: variable: 4565, template: 18.
- alias: Battery Check
id: battery_check
trigger:
- platform: time
at: "10:00:00"
variables:
threshold: >
{{ 20 }}
exlude: >
{{ expand('group.sensors_exclude_battery_check') | map(attribute='entity_id') | list }}
monitored: >
{{ states.sensor
| rejectattr('attributes.device_class', 'undefined')
| selectattr('attributes.device_class', 'eq', 'battery')
| rejectattr('entity_id', 'in', exlude)
| list }}
unavailable: >
{{ expand(monitored)
| selectattr('state', 'in', ['unavailable', 'unknown', 'none'])
| map(attribute='entity_id')
| list }}
low_battery: >
{{ expand(monitored)
| rejectattr('entity_id', 'in', unavailable)
| map(attribute='state')
| map('int')
| select('<=', threshold)
| map('string')
| list }}
pass: >
{{ (low_battery | count > 0) or (unavailable | count > 0) }}
condition:
- condition: template
value_template: "{{ pass }}"
action:
- service: notify.hass_agent_hugo
data:
message: >
variable: {{ monitored | count }},
template: {{ states.sensor
| rejectattr('attributes.device_class', 'undefined')
| selectattr('attributes.device_class', 'eq', 'battery')
| rejectattr('entity_id', 'in', exlude)
| list | count }}
If I tried to pass the variable monitored as a collection of entities by adding a filter | map(attribute='entity_id'), then passing the variable was successful. I do not understand why.
Example in the template editor (works like a charm):
{% set threshold = 15 %}
{% set exclude = expand('group.sensors_exclude_battery_check')
| map(attribute='entity_id')
| list %}
{% set monitored = states.sensor
| rejectattr('attributes.device_class', 'undefined')
| selectattr('attributes.device_class', 'eq', 'battery')
| rejectattr('entity_id', 'in', exclude)
| list %}
{% set unavailable = expand(monitored)
| selectattr('state', 'in', ['unavailable', 'unknown', 'none'])
| map(attribute='entity_id')
| list %}
{% set low_battery = expand(monitored)
| rejectattr('entity_id', 'in', unavailable)
| map(attribute='state')
| map('int')
| select('<=', threshold)
| map('string')
| list %}
Low Battery:
------------
{% for state in monitored | selectattr('state', 'in', low_battery) -%}
{{ state.name + ": " + state.state + " %" }}
{%- endfor %}
Empty battery:
--------------
{{ unavailable | join('\n') }}
DEBUG INFO --->
threshold: {{ threshold }}
excluded sensors: {{ exclude | count }}
monitored sensors: {{ monitored | count }}
unavailable sensors: {{ unavailable | count }}
low battery sensors: {{ low_battery | count }}
Template editor (printed result):
Low Battery:
------------
Kids room sensor lightlevel Battery: 15 %
Empty battery:
--------------
sensor.mi_magic_cube_battery_level
sensor.mi_smart_switch_battery_level
sensor.sensor_door_battery_level
sensor.sensor_mrazak_battery_level
DEBUG INFO --->
threshold: 15
excluded sensors: 5
monitored sensors: 18
unavailable sensors: 4
low battery sensors: 1