Basic UI don't show string items value

vich-667 · December 23, 2022, 7:25pm

I have several sting items in my OH configurations, which are linke to a channel of the http plugin. In items configuration menu as well as in the semantic Main UI the values are shown as expected.

In Basic UI this strings are not displayed. The Items simply added by Default item=PluggitBypassActualState but also Text item=PluggitBypassActualState has the same effect. I only see the label and the icon but not the items value.

I have the same problem with multiple string items linked with the http plugin. String items linked with channals from other plugins works.

What could be the problem and how to fix it?

I just updated to OH3.4 but I also hat the issue before.

hafniumzinc · December 23, 2022, 7:35pm

You probably need to add the label. Check the examples in the documentation.

Text item=LR_Multimedia_Summary label="Multimedia [%s]" icon="video"

The important bit is the "[%s]"

Matze0211 · December 24, 2022, 5:55am

Alternatively if you have created the item via UI add state description metadata

Lolodomo · December 24, 2022, 8:43am

Normally there is a default pattern for string items, “℅s”. Maybe a label is required on item or sitemap element, even without a pattern?

vich-667 · December 25, 2022, 9:14am

Thanks for that hint, by adding label="LabelName [%s]" the string value get’s displayed. But finnaly i need to redefine the items label.

It’s somehow inconsistant. For other string items it works without that label, for this not. So it seems that is a workaround to “hide” the root cause of the issue.

Lolodomo · December 26, 2022, 11:00am

Some bindings also set a default %s pattern on their (string) channel types, sone others don’t. If your problem is only with the HTTP binding, that would be something to check in this binding.
If no default pattern is defined by the binding for the channel, maybe you need to define a label with a %s pattern.
To be honnest, I have in mind that many years ago, I added code to have always a default pattern for string items, maybe this code was then removed.

By curiosity, did you try to set a label without a state pattern? Is the value displayed in that case?

vich-667 · December 27, 2022, 4:02pm

Hi,

if i just define a label with

label="%s" its just %s displayed on left side.
label="[%s]" I only see the value ItemsString on right side, left side is empty.
label="LabelName [%s]" I see LabelName on left side and ItemsSring on right side.

In all cases the Items original label is ignored.

Lolodomo · December 27, 2022, 5:13pm

Simply add the state pattern to the item, if this is what you want.

vich-667 · December 29, 2022, 7:26pm

@Lolodomo: Thanks for your help. For me it help when I can unserstand why things in OH happen. There a a lot of stuff what I need to understand.

If got you, for example this bindind defines a pattern:

github.com

openhab/openhab-addons/blob/68ecfa724e6f49780bb129b96e4674c327f09a2d/bundles/org.openhab.binding.senechome/src/main/resources/OH-INF/thing/thing-types.xml#L237


      
          	<channel-type id="batteryFuelCharge">
          		<item-type>Number:Dimensionless</item-type>
          		<label>Battery Fuel</label>
          		<category>BatteryLevel</category>
          		<state readOnly="true" pattern="%.0f %unit%"/>
          	</channel-type>
          	<channel-type id="systemState">
          		<item-type>String</item-type>
          		<label>System State</label>
          		<category>Text</category>
          		<state readOnly="true" pattern="%s"/>
          	</channel-type>
          	<channel-type id="systemStateValue">
          		<item-type>Number</item-type>
          		<label>System State Value</label>
          		<category>Number</category>
          		<state readOnly="true" pattern="%d"/>
          	</channel-type>
          
          

          
	<channel-type id="gridPower">

What http dosn’t do:

github.com

openhab/openhab-addons/blob/68ecfa724e6f49780bb129b96e4674c327f09a2d/bundles/org.openhab.binding.http/src/main/resources/OH-INF/thing/thing-types.xml#L172


      
          		<label>Player Channel</label>
          		<config-description-ref uri="channel-type:http:channel-config-player"/>
          	</channel-type>
          
          
	<channel-type id="rollershutter">
          		<item-type>Rollershutter</item-type>
          		<label>Rollershutter Channel</label>
          		<config-description-ref uri="channel-type:http:channel-config-rollershutter"/>
          	</channel-type>
          
          
	<channel-type id="string">
          		<item-type>String</item-type>
          		<label>String Channel</label>
          		<config-description-ref uri="channel-type:http:channel-config"/>
          	</channel-type>
          
          
	<channel-type id="switch">
          		<item-type>Switch</item-type>
          		<label>Switch Channel</label>
          		<config-description-ref uri="channel-type:http:channel-config-switch"/>
          	</channel-type>

If I manualy add that pattern to the items metadata, it’s now displayed as expected.