[SOLVED] Using UoM / QuantityType in rules where used DecimalType Previously

[waspie (scott dee)]

Number temperature items (2.3.x) seem to have moved over to UoM regardless of whether i wanted them to or not if I use the degree symbol in the item definition…which is fine if I can get them back to decimals or whatever.
perhaps someone can tell me a better way to do this…
I have a temperature and a setpoint. I want to set the hysteresis for opening/closing a vent but now with the numbers as QuantityType I cant get everything to play nice.
items:

Number:Temperature  Master_Temperature 		"Master Bedroom    [%.1f %unit%]"   <temperature>	(gMainTemps)                        [ "CurrentTemperature" ]    { mqtt="<[oh2:/MasterSensor/Master_Temp/MBD_TEMP:state:default]", expire="20m,-1" }

even if I use it as just “Number” if i have the degree F in the description it seems to have shifted over to a QT regardless of not having :Temperature attached to Number. so again, whatever, that’s fine if I can work with just the number, i just don’t know how to.

rule:

		//var setpointMA = VT_Setpoint_Master.state as DecimalType
		var setpointMA = new DecimalType(VT_Setpoint_Master.doubleValue)
		var Number turnOntempMA = setpointMA - 0.5
		var Number turnOfftempMA = setpointMA + 0.5
		//var tempMA = Master_Temperature.state as DecimalType
		var tempMA = new DecimalType(Master_Temperature.doubleValue)
		if ( tempMA <= turnOntempMA && FF_Master_Vent_Trigger.state != ON ) {

I got that out of https://docs.openhab.org/configuration/rules-dsl.html (search quantitytype)
but no love. i tried a few other things but none of them work:
Rule ‘Master Vent Control Strategy’: An error occurred during the script execution: Could not invoke constructor: org.eclipse.smarthome.core.library.types.DecimalType.DecimalType(java.lang.String)

any suggestions?

[waspie (scott dee)]

I thought I had tried this already but maybe not…
anyway, this thread has the answer:

UoM support in rules

I recently ran into something similar trying to use a value in a string without the unit, and used this… val String testTemp = gTemperatureUpstairs.state.format("%.0f") Which means these could also be used… val Integer testTemp1 = Integer::parseInt(gTemperatureUpstairs.state.format("%.0f")) val Double testTemp2 = Double::parseDouble(gTemperatureUpstairs.state.format("%.3f")) To do this the way you were trying, it would need to be like this… var Number CurrentValue = (Bad_temp.state as Quan…

So my

var setpointMA = VT_Setpoint_Master.state as DecimalType

needs to become

var Number setpointMA = (VT_Setpoint_Master.state as QuantityType<Number>).doubleValue

[sbcarp (Jim)]

This no longer seems to work. From the logs

Could not cast 63 to org.eclipse.smarthome.core.library.types.QuantityType

[sbcarp (Jim)]

The code

var Number temp = (FamilyRoom_FamilyRoomHVACTemperature.state as QuantityType<Number>).doubleValue

But this now works

var Number temp = (FamilyRoom_FamilyRoomHVACTemperature.state as Number).doubleValue```

[rossko57]

@sbcarp

This no longer seems to work. From the logs

Could not cast 63 to 

Don’t seem to be any units there.

What kind of Item is FamilyRoom_FamilyRoomHVACTemperature ?

[sbcarp (Jim)]

It is setup through Paper UI as a Number

[sbcarp (Jim)]

Although I do not have a Dimension there. Not sure if that matters

[rossko57]

If it’s just a Number type Item, it’s just a number.
If it’s just a number there is no dimension, and you cannot simply use as QuantityType.

All seems to be working as designed.