I use a JS transformation for my Bosch Home Connect devices to transform the remaining run time from seconds (coming from the API) to a more human readable format. While the non-transformed item updates as expected, the transformed value remains at “32 min” and I have no idea why. Here’s my sitemap entry:
(function(i) {
var val = parseInt(i); // The value sent by OH is a string so we parse into an integer
var days = 0; // Initialise variables
var hours = 0;
var minutes = 0;
if (val >= 86400) { // 86400 seconds in a days
days = Math.floor(val / 86400); // Number of days
val = val - (days * 86400); // Remove days from val
}
if (val >= 3600) { // 3600 seconds in an hour
hours = Math.floor(val / 3600); // Number of hours
val = val - (hours * 3600); // Remove hours from val
}
minutes = Math.floor(val / 60); // Number of minutes
var stringDays = ''; // Initialse string variables
var stringHours = '';
var stringMinutes = '';
if (days > 0) {
stringDays = days + ' T '; // More than 1 day so 's'
} // If days = 0 then stringDays remains ''
if (hours > 0) {
stringHours = hours + ' h '; // More than 1 hour so 's'
} // If hours = 0 then stringHours remains ''
if (minutes > 0) {
stringMinutes = minutes + ' min'; // More than 1 minute so 's'
} // If minutes = 0 then stringMinutes remains ''
var returnString = stringDays + stringHours + stringMinutes
return returnString.trim(); // Removes the extraneous space at the end
})(input)
When I test the JS, it works perfectly fine. I’m running OH3, but still use BasicUI for the OH app.
As your transform seems to work initially, I’ll hazard a guess this is an odd artefact of having the Item in the sitemap twice.
The UI gets notified when an Item state is updated - the raw Item state, before any transformation.
I think you’ll only get one notification, no matter how many times the Item appears in your sitemap.
The UI dutifully updates its screen, but in this case I suspect some timing issue where it fetches new values to display before your transform has had time to calculate a new value?
That probably arrives later, but the screen update is over by then.
I have an idea that if you remove the raw Item line, the transformed line may work as expected.
Unfortunately, this does not help. Even when I only have the transformed item in there, it does not get updated. I have added the raw item only for debugging purposes.
I assumed your script worked. Have you ever got anything other than “32mins” out of it? Your openhab.log may show up transform failures at UI refresh time.
openhab> openhab:items list Dishwasher_RemainingProgramTime
Dishwasher_RemainingProgramTime (Type=NumberItem, State=UNDEF, Label=Remaining program time, Category=time)
openhab> openhab:links list
Dishwasher_RemainingProgramTime -> homeconnect:Dishwasher:BOSCH-SBV68TX06E-68A40E093DE8:remaining_program_time_state Configuration[]
