Mapping using grafonnet

[kelchen123]

Hi, I'm currently trying to create mappings for one of my panels using grafonnet, but can't quite figure out how to get started. How could I make a simple value mapping modeled after this grafana json?

"mappings": [
{
"options": {
"123": {
"index": 1,
"text": "1.2.3"
}
"type": "value"
}
]

[Duologic]

The value mappings are documented here: https://grafana.github.io/grafonnet/API/panel/timeSeries/valueMapping.html

[kelchen123]

Hi, I tried to use the functions but have been unable to generate any value mapping on grafana. Is there an example format to use?

For example, I tried formats such as
stateTimeline.valueMapping.RegexMap.options.withPattern("123")
+ stateTimeline.valueMapping.RegexMap.options.withResult("123")
+ stateTimeline.valueMapping.RegexMap.options.result.withText('1.2.3')

[mrpaulmanley]

I am struggling to understand this as well. I'm trying to replicate a stat panel that was made through the GUI.

It uses the following mappings

When I add the following to my panel definition I have 2 problems.

      + stat.valueMapping.RangeMap.options.withFrom(0)
      + stat.valueMapping.RangeMap.options.withTo(0)
      + stat.valueMapping.RangeMap.options.result.withText("Down")
      + stat.valueMapping.RangeMap.options.result.withColor("Red")
      + stat.valueMapping.RangeMap.options.withFrom(1)
      + stat.valueMapping.RangeMap.options.withTo(1)
      + stat.valueMapping.RangeMap.options.result.withText("Up")
      + stat.valueMapping.RangeMap.options.result.withColor("Green")

1. Only the last map for range 1-1 is rendered. I'm sure this is just me not fully understanding jsonnet yet.
2. The map is not rendered under the key fieldConfig.defaults.mappings. It instead is rendered as a top level of the panel under options.

      {
         "datasource": {
            "type": "datasource",
            "uid": "-- Mixed --"
         },
         "fieldConfig": {
            "defaults": {
               "unit": "s"
            }
         },
         "gridPos": {
            "h": 8,
            "w": 8,
            "x": 0,
            "y": 1
         },
         "id": 2,
         "options": {
            "from": 1,
            "result": {
               "color": "Green",
               "text": "Up"
            },
            "to": 1
         },...

Any help would be appreciated.

[Duologic]

I intended below comment as reply on this thread.

[Duologic]

The value mappings object is a separate object, it can be added to the mappings array of a panel with standardOptions.withMappings.

local valueMapping = star.valueMapping;
stat.standardOptions.withMappings([
  valueMapping.RangeMap.options.withFrom(0)
  + valueMapping.RangeMap.options.withTo(0)
  + valueMapping.RangeMap.options.result.withText('Down')
  + valueMapping.RangeMap.options.result.withColor('Red'),
  valueMapping.RangeMap.options.withFrom(1)
  + valueMapping.RangeMap.options.withTo(1)
  + valueMapping.RangeMap.options.result.withText('Up')
  + valueMapping.RangeMap.options.result.withColor('Green'),
])

Documentation for this needs improvement.