View.params object passing to script - error while accessing list dictionary item

[victordcq]

yes but what if you call your script in the transform script and use an structured expression binding

[lrose]

I’m not sure why, but for whatever reason, even if you build the structure in the designer, you do indeed end up getting class com.inductiveautomation.perspective.comonImmutableQualifiedValue

So system.util.jsonDecode() doesn’t work. Anyway, this does work:

shiftPat = []
for v in value:
    shifPat.append({k:v.value[k] for k in v.value.keys()})

[Transistor]

@victordcq

what if you call your script in the transform script

Ooooh! Well that makes a difference. It seems that the script passes the list of dictionaries through without harm! The only additional trick was to give a dummy binding to feed into the transform.

Thank you!

[victordcq]

@Transistor

The only additional trick was to give a dummy binding to feed into the transform

you should use an expression struct and bind on these params

{session.custom.datePicker},
{view.params.config.shiftPattern}

[Transistor]

That makes sense - otherwise the binding wouldn’t update on date change, etc.
I’ll have to look at it later.

[tupanaster]

@Transistor thanks for starting the thread. I was having the same problem.

@victordcq

what if you call your script in the transform script

I was also calling scripts only from Expression transforms.

@Transistor

Ooooh! Well that makes a difference

Indeed!
When using Expression transforms, the type passed is ImmutableQualifiedValue. I was having a hard time getting around it, but Script transform did the trick.

@Transistor

That makes sense - otherwise the binding wouldn’t update on date change, etc.
I’ll have to look at it later.

Probably you already solved it. In case you haven't, your first expression binding would be bind to a date change instead of a dummy true