Group state does not update when items update

Setup, Configuration and Use Items & Sitemaps
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1

Hi all,

Still quite new to OpenHab, but very happy with it at the moment. I’m trying out the use of groups so that I can switch off all my lights at one, eventually. Right now, I’m just trying to show the number of active lights in my basicUI.

When I open the basic UI, It presents 2 light switches, that I can use to switch on/off the lights. In addition, it has a text saying “Number of lights on” which mentions the number of lights that are switched on. This number is correct, but is not updated when I switch on/off a light unless I refresh the page. Is there something that I’m missing here? Or does this need to be covered with a rule (I hope not, and if so: how)?

.items

Group gLights

Switch Light1 <switch> (gLights) { channel="loxone:..." }
Switch Light2 <switch> (gLights) { channel="loxone:..." }

Group:Number:SUM gLights "Number of lights switched on: [%d]" <slider>

.sitemap

...
Text item=gLights
Switch item=Light1 label="Light 1"
Switch item=Light2 label="Light 2"
...

My configuration:

  • openhab2 version 2.2.0~20171206234049-1
  • OSX
  • java version 1.8.0_151

Thank you!
jan.

2

You have defined your gLights group twice which could be causing problems. Remove the first one and see if that makes a difference.

3

That doesn’t seem to solve the issue, unfortunately. Indeed, I noticed that the icon also doesn’t change colour from green (light on) to red (light off) unless I refresh the page. It seems to be something to do with updates not happening in BasicUI. Symptoms that I now identified:

  • The “number of lights switched on” is not updated in BasicUI unless I refresh the page.
  • The icon for a light does not change colour when pressed in BasicUI unless I refresh the page.
  • Switching a light in PaperUI does not change the state of that light in the BasicUI.
  • Switching a light in BasicUI does change the state of that light in PaperUI.

This is true in Chrome, Safari and Firefox.

4

Did you already restart openhAB?

5

Restarting made it work! Thank you!