How can I insert a function in a switch case?

Mateus

I have a signal in my backend file (main.py) to send random values in variable "temped":

temped = randint(35,40)
[...]
setTempED = Signal(str)
[...]
self.setTempED.emit(str(temped))

And I have a .qml file with:

property real temped

    Connections {
        target: backend

        function onSetTempED(temp2) {
           temped = temp2
        }
    }

(In this variable, I receive the random value of setTempED)

[...]

    Component.onCompleted: {
    selectparameter_Q1.okclicked1.connect(function(id){

        switch(id) {

        case 0:
                monitorscreen.tq1.text = "Temp Óleo Freio (ED)"
            monitorscreen.q1.text = temped
            monitorscreen.q5.text = "°C"
            break
            [...]

The signal "okclicked1(var id)" is in another .QML file, and It sends a signal to insert this value in an alias property

My problem is, when I send the signal okclicked(), the field monitorscreen.q1.text receives the actual value of function, but doesn't update in real time, it stays fixed. I need that this variable been dynamic according to values generate by function.

Here's a video to ilustrate the problem: https://drive.google.com/file/d/1iN6sSbb1Vy2N1TQg9aIurFLUhaJdE4iv/view?usp=sharing