Thing added to model doesn't show up in model

[Lurch]

Linux openhab 6.1.30-meson64 #8 SMP PREEMPT Wed May 24 16:32:53 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux

openHAB Distribution Version Information
----------------------------------------
build-no        : Release Build
online-repo     : https://openhab.jfrog.io/openhab/libs-release

Repository        Version
----------------------------------------
openhab-distro  : 4.0.2
openhab-core    : 4.0.2
openhab-addons  : 4.0.2
karaf           : 4.4.3

openjdk version "17.0.8" 2023-07-18
OpenJDK Runtime Environment (build 17.0.8+7-Ubuntu-122.04)
OpenJDK 64-Bit Server VM (build 17.0.8+7-Ubuntu-122.04, mixed mode, sharing)

If I go to Things > Channels > Add Equipment To Model then check the model the thing isn’t there. The thing is in the model somewhere as if I try to add a thing from the model page then I get an error “item already exists”. I had this happen once before and then I left it and it had appeared the next day when I checked the model again, so I assume there is some action that refreshes the model at some point. Can this be triggered manually?

Or is this a bug?

[Mark_VG (Mark)]

What Browser are you using? Could this be related to the caching issue with Firefox?

[Lurch]

I am using Firefox. I have tried refreshing (Ctrl-F5) and this did not seem to do anything.

[Mark_VG (Mark)]

There are quite a few threads of issues with Firefox…

Semantic model loop

There’s part of your issue. At the moment Firefox’s page caching includes a about the javascript environment that interferes with proper updates to the UI. So there are a lot of instances where a user makes a change and cannot see the results of that change in the UI. The solution is to to a hard refresh of the page when you suspect that is happening or just use a non-firefox browser to work with the MainUI.

Maybe try a different browser and see if that helps?

[Lurch]

I see now. I did search before starting but didn’t find anything that seemed related/relevant. That seems to be the issue then, the item shows up in Chrome.

I notice the issue can be overridden (I believe, from reading Using Firefox 1.5 caching - Mozilla | MDN) by the site so I assume this can still be fixed on the openHAB side.

[mstormi (Markus Storm)]

You do not give any details about how you created that thing.
A thing by default won’t appear in the model unless you put it into specific groups and create proper tags.

[Lurch]

@mstormi

You do not give any details about how you created that thing.

I’ve seen this issue a couple of times in the past. This latest time I have added the thing (the computerinfo thing) by adding a thing and clicking ‘scan’.

@mstormi

A thing by default won’t appear in the model unless you put it into specific groups and create proper tags.

Isn’t the “Add Thing To Model” supposed to do this though? As I said above it is seen if I use Chrome so it seems to suggest it is a Firefox caching issue but your reply seems to suggest that I should be doing something else or doing it a different way?

[mstormi (Markus Storm)]

@Lurch

Isn’t the “Add Thing To Model” supposed to do this though?

yes. But there’s multiple ways to add a thing. Doing via “+” or scan won’t add it to the model.

[Lurch]

OK, I didn’t expect it to which is why I did this.

@Lurch

I go to Things > Channels > Add Equipment To Model