Don't understand the changes in the new template engine

Configuration
1

Dear all,
after updating from 116.4 to 118.2 I experince trouble with at least one of my template sensors.
I found the breaking changes section in the release notes but I can’t figure what I would have to change.
This is my sensor setup:

#Oekofen Heizung
  - platform: rest
    resource: http://x.y.z.a?
    scan_interval: 10
    name: "oekofen"
    value_template: "{{ value_json['system.system_info'] }}"
    json_attributes:
      - system
      - weather
      - forecast
      - hk1
      - ww1
      - pe1
      - error
  - platform: template
    sensors:
      oekofen_aussentemp:
        friendly_name: 'Heizung Aussentemp. Fühler'
        value_template: "{{ ((state_attr('sensor.oekofen', 'system')['L_ambient'] | int) *0.1) | round(1) }}"
        unit_of_measurement: "°C"

The sensor oekofen is giving the same output as before:

system: 
system_info: system global variables
L_ambient:
  val: '81'
  unit: '?C'
  factor: '0.1'
  min: '-32768'
  max: '32767'
...

friendly_name: oekofen

Anyhow, the sensor oekofen_aussentemp gives me a reading of 0.0 which is the same for all other sensors related to the heating. Just saying, a heating with all values 0.0 would make that much sense the values are not 0 in the rest sensor reply.

:roll_eyes: :roll_eyes: :roll_eyes:

I know, it should be easy but I can’t figure it.

Thanks for support!!
Ralf

2

This doesn’t make sense. This will return the whole array. If you want the value, you would need

(state_attr('sensor.oekofen', 'system')['L_ambient']['val'] | int)

or a [0], or something. Not sure how it worked before. Maybe if you didn’t specify something, it defaulted to [0]?

Either way, just specify the exact field you want.

1 Like
3

Jim, you are absolutely right.

I just wonder, why it was working for almost a year with this configuration.

As I said, it ought to be very simple.

Thanks

4

The int filter converts anything non-numeric to 0.

Based on your description of the data, the result of this template is a dictionary, not a number.

{{ state_attr('sensor.oekofen', 'system')['L_ambient'] }}

If you add an int filter to the end of the template, it will report 0.

Screenshot from 2020-11-25 10-18-57
Screenshot from 2020-11-25 10-18-571600×276 28.7 KB

It’s hard to believe that ever worked correctly in previous versions, unless the data’s format has changed since 0.116 (i.e. L_ambient contained a number and not a dictionary).