Comparing number:length with number in a rule

[e36Alex (Alexander)]

Hello,

i would like to compare a numer:length with a number in a rule.
I already tried to handle it with parseInt and …state as Number and as DecimalType but it didnt work.

This is the rule:

rule "Geringer Tankinhalt"
when
    Item BMW_G31_VerbrennerReichweite changed
then
    if ((BMW_G31_VerbrennerReichweite.state as DecimalType) < 200 ) {
        val message = new StringBuilder
        Group_Tankpreise.members.forEach[i | message.append(i.name + ":\n" + i.state + "€\n") ]
        val telegramAction = getActions("telegram","telegram:telegramBot:Telegram_Bot1_Alexander")
        telegramAction.sendTelegram(1234567890,"Der Tank ist fast leer, die Reichweite beträg nur noch: "+BMW_G31_VerbrennerReichweite.state+".\n\nÜbersicht Tankpreise:\n" + message)
    }
end

Thanks for your help in advance,
Alex

[rossko57]

See

Working with Number:Temperature Items in rules

openHAB provides Quantity Type features, which can seem baffling. On top of that, Temperature type Quantities have a few quirks all of their own. These notes intend to guide the rules author. I’ve shown work examples in DSL rules language, see below for other scripts examples. All have similar features, if different syntax. Knowing what can be done is half the battle. What is a Quantity Type? Simply, Item states and rule variables may contain Quantities - that just means a number AND a unit …

It’s probably easiest to compare with 200 of whatever it was you intended.
if (BMW_G31_VerbrennerReichweite.state < 200 | mm {

[e36Alex (Alexander)]

Great, thank you! Thats it - i didnt find this topic at my search.

Changed rule now and it works fine:

(BMW_G31_VerbrennerReichweite.state < 200|km )