Why does this template throw an error every second

Mariusthvdb · February 7, 2022, 2:29pm

using a markdown card with:

{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}

shows a fine card in the frontend.

but, when I use this in the template editor, I see it update every second, and in the HA log:

2022-02-07 15:27:38 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'

why is this?

123 · February 7, 2022, 2:39pm

Not sure if this is the cause but do you have any automations that have never been triggered?

Mariusthvdb · February 7, 2022, 2:51pm

a thats clever indeed!

and yes I do

123 · February 7, 2022, 2:54pm

Add this filter after states.automation

   | selectattr('attributes.last_triggered', 'ne', None)

Mariusthvdb · February 7, 2022, 3:01pm

I was already in an effort using:

{% for state in states.automation
     |selectattr('attributes.last_triggered')
     |rejectattr('attributes.last_triggered','eq',None)
     |sort(attribute='attributes.last_triggered',reverse=true)
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}

but that doesnt make a difference, and your suggestion:


{% for state in states.automation
| selectattr('attributes.last_triggered', 'ne', None)
     |sort(attribute='attributes.last_triggered',reverse=true)
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}

errors completely:

UndefinedError: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered'

never saw ‘null’ in the dev editor:

replacing that (null) in the template results in

TypeError: '<' not supported between instances of 'NoneType' and 'datetime.datetime'

{{state_attr('automation.saver_offline','last_triggered') is none}}

is True

and, to confirm you suspicion, after turning off those non-triggered automations, the template stops being updated each second. So I really need to find out how to reject those automations.

123 · February 7, 2022, 3:13pm

Here’s what I use to list recently triggered automations in a Markup card. I just tested it in the Template Editor without errors.

|D|H|M||Name|
|----:|----:|----:|:--:|:----|
{% for state in states.automation
   | selectattr('state', 'ne', 'unavailable')
   | selectattr('attributes.last_triggered', 'ne', None)
   | selectattr('attributes.last_triggered')
   | sort(attribute='attributes.last_triggered', reverse=true) -%}
  {%- set t = now() - state.attributes.last_triggered -%}
  {%- set days = t.days if t.days > 0 else '&nbsp;' -%}
  {%- set hrs = t.seconds//3600 %}
  {%- set hrs = hrs if hrs > 0 else '&nbsp;' -%}
  |{{days}}|{{hrs}}|{{(t.seconds//60)%60}}||_{{state.name}}_|
{% endfor %}

Copy-paste it into the Template Editor on your system and see if it produces errors.

Mariusthvdb · February 7, 2022, 3:18pm

123:

|D|H|M||Name|
|----:|----:|----:|:--:|:----|
{% for state in states.automation
   | selectattr('state', 'ne', 'unavailable')
   | selectattr('attributes.last_triggered', 'ne', None)
   | selectattr('attributes.last_triggered')
   | sort(attribute='attributes.last_triggered', reverse=true) -%}
  {%- set t = now() - state.attributes.last_triggered -%}
  {%- set days = t.days if t.days > 0 else '&nbsp;' -%}
  {%- set hrs = t.seconds//3600 %}
  {%- set hrs = hrs if hrs > 0 else '&nbsp;' -%}
  |{{days}}|{{hrs}}|{{(t.seconds//60)%60}}||_{{state.name}}_|
{% endfor %}

no errors

BUT, now I enter my old template once again, it doesnt throw errors anymore either…
just to be sure I reject as many issues as possible, I added your ‘ne’ to the markdown:

        content: |
          {% for state in (states.automation
             |selectattr('state', 'ne', 'unavailable')
             |selectattr('attributes.last_triggered', 'ne', None)
             |selectattr('attributes.last_triggered')
             |sort(attribute='attributes.last_triggered',reverse=true))
             if (now() - state.attributes.last_triggered).days < 1 -%}
          {{state.attributes.last_triggered.timestamp()
            |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
          {% endfor %}

let’s see what a restart will bring (not sure why that would make a change, but apparently something did between the testing of these various templates, a restart might reset that, even though last_triggered is restored at restart)

123 · February 7, 2022, 3:27pm

Magic!

Mariusthvdb · February 7, 2022, 3:30pm

haha, yes, but just so you believe me:

2022-02-07 16:05:21 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'
2022-02-07 16:05:22 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'
2022-02-07 16:05:23 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'
2022-02-07 16:05:24 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'
2022-02-07 16:05:25 WARNING (MainThread) [homeassistant.helpers.template] Template variable warning: 'homeassistant.util.read_only_dict.ReadOnlyDict object' has no attribute 'last_triggered' when rendering '{% for state in (states.automation
     |selectattr('attributes.last_triggered')
     |sort(attribute='attributes.last_triggered',reverse=true))
     if (now() - state.attributes.last_triggered).days < 1 -%}
{{state.attributes.last_triggered.timestamp()
  |timestamp_custom('%d-%m %H:%M:%S')}} : {{state.name}}
{% endfor %}'

123 · February 7, 2022, 3:35pm

Reality!

123 · February 7, 2022, 3:38pm

Not sure what’s going on there. My test system is running 2022.2.0 and, on restart, I don’t see any errors in the log for the Markup card containing the code I posted above (and the same code is sitting in the Template Editor).

Mariusthvdb · February 7, 2022, 3:48pm

just restarted and no error in sight anymore. Tested my old template, and now with or without your additions.
not a single template error.
how wondrous.

maybe

if state.attributes.last_triggered  and (now() - state.attributes.last_triggered).days < 1

could help too, its what I do in other templates. Or would this be too late in the process and would the error already be thrown in the select section