Make display hide and show with a function problem

Dashboard
1

Hi, I'am new to this forum and I don't know if I use it like it should be.

I have a button on my dashboard and if I push on it, the dashboard shows or hide depending items on a fixed payload topic. That works perfect. Now I made a second tab on my dashboard so I can make my own selection what to hide and show on screen, depending on the selection. I made a function to make a payload topic, but I can't get the selection on my screen.

In the picture is the json( hide and show) that works, is the fixed json.

{
    "group": {
        "hide": [
            "Main_OverhevelGame",
            "Main_M17Game"
        ],
        "show": [
            "Main_InGameDisplay",
            "Main_DrukknopGame",
            "Main_BlueRedLineGame"
        ]
    }
}

I made also a function to make a payload with the following result:

20-11-2023 10:15:11node: debug 2
[object Object] : msg.payload : string[84]
"{"group":{"hide":["Main_OverhevelGame","Main_M17"],"show":["Main_BlueRedLineGame"]}}"

the function is like:

var spelhide = "{\"group\":{\"hide\":[";
var spelshow = "],\"show\":[";

if(global.get("speelOverhevel") == true){
    if (spelshow == "],\"show\":["){
        spelshow = spelshow + "\"Main_OverhevelGame\"";
    }
    else{
        spelshow = spelshow + "," + "\"Main_OverhevelGame\"";    
    }
}   
else{
    if (spelhide == "{\"group\":{\"hide\":[") {
        spelhide = spelhide + "\"Main_OverhevelGame\"";
    }
    else {
        spelhide = spelhide + "," + "\"Main_OverhevelGame\"";
    }
}   

if (global.get("speelBlueRedLine") == true) {
    if (spelshow == "],\"show\":[") {
        spelshow = spelshow + "\"Main_BlueRedLineGame\"";
    }
    else {
        spelshow = spelshow + "," + "\"Main_BlueRedLineGame\"";
    }
}
else {
    if (spelhide == "{\"group\":{\"hide\":[") {
        spelhide = spelhide + "\"Main_BlueRedLineGame\"";
    }
    else {
        spelhide = spelhide + "," + "\"Main_BlueRedLineGame\"";
    }
}   

if (global.get("speelM17") == true) {
    if (spelshow == "],\"show\":[") {
        spelshow = spelshow + "\"Main_M17Game\"";
    }
    else {
        spelshow = spelshow + "," + "\"Main_M17Game\"";
    }
}
else {
    if (spelhide == "{\"group\":{\"hide\":[") {
        spelhide = spelhide + "\"Main_M17\"";
    }
    else {
        spelhide = spelhide + "," + "\"Main_M17\"";
    }
}   

msg.payload = spelhide + spelshow + "]}}";
return msg;

At the end of the function I put the output to msg.payload. I think is not the problem?
But I don't know to what topic I have to write it?

Is there somebody that can point me where to find the solution?
Many thanks

2

You are working with strings, It would be easier if you used objects as that is what you need to feed in to the ui-control.

Look at the debug you created a msg.payload that is a string.
msg.payload needs to be an object.
either rework your function to create an object. Or feed the JSON string through a JSON node.

1 Like
3

Thanks, I used a json node and now it works.

4

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