"Dynamic" scenes not persisted across restarts

lmb · December 24, 2024, 2:20pm

There’s already a feature request for this (Persist scenes created with scene.create - #17 by rplaughl) but it has also made me go “WTH” this week when my report (I originally thought this was a bug ) was closed as “this is as designed”.

github.com/home-assistant/core

Dynamic scene via scene.create lost on restart

opened 07:17PM - 23 Dec 24 UTC

closed 10:08PM - 23 Dec 24 UTC

l-mb

integration: scene

### The problem I use dynamic scenes (via `scene.create` and `snapshot_entities…`) to save the state of lights prior to turning them off, so I can restore them later (such as when presence is detected again). These dynamic scenes are however not persisted across restarts of HA, leading to suboptimal user experience. ### What version of Home Assistant Core has the issue? core-2024.12.5 ### What was the last working version of Home Assistant Core? _No response_ ### What type of installation are you running? Home Assistant Container ### Integration causing the issue Scene ### Link to integration documentation on our website https://www.home-assistant.io/docs/scene/ ### Diagnostics information _No response_ ### Example YAML snippet ```yaml - service: scene.create data: scene_id: lights_office_snap snapshot_entities: >- {{expand(state_attr('light.lights_office', 'entity_id'))|map(attribute='entity_id')|list}} and later - service: scene.turn_on data: entity_id: scene.lights_office_snap ``` ### Anything in the logs that might be useful for us? _No response_ ### Additional information I did search for related issues but did not find one. Creating a placeholder dynamic scene on start-up as a default is not great. That one can't be in `scenes.yaml` either since dynamic scenes can't overwrite those, but would have be created via an automation ...

This also was reported as a WTH moment in 2022: Scenes created with scene.create to survive a restart

This means there’s intentionally no way to reliably achieve the seemingly very simple task of “turn lights off when presence detection switches off, and turn them on as they were when presence is detected again”. That can’t be right?

That seems to me to be one of the most basic tasks of a smart home automation setup?

Can we revisit this?

petro · December 24, 2024, 2:26pm

Duplicate