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Calculate running number in field maps

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1
07-05-2024 07:39 AM
SaskiaSandring
New Contributor

Hi!

I'm trying to create a calculated field with a running number for each registration of insects along a transect. Registrations are created as point features.

I wrote the script according to this solution https://community.esri.com/t5/arcgis-field-maps-questions/autonumbering-arcade-expression-works-in-t...

However, it does not work as expected.

In field maps on iphone the first registration for each transekt gets number 0 after that the running count works fine. On android every registration gets number 0 and the calculation is not workning  and our field staff is using android.

if(!IsEmpty($feature.art_nr)) { 
  return $feature.art_nr
}
else {
  var observationer = FeatureSetByName($map,"3_Fhin_Fjarilar_Artreg_2024",['art_nr'],false)  
  var transekt = $feature.transekt
  var abo = $feature.abo
  var arter = Filter(observationer, "(transekt = @transekt) AND (abo = @abo)")

 
var numarray = []
  for (var n in arter){
    var nn = Number(n.art_nr)
    Push(numarray, nn)
  }
  var senaste_art_nr= Max(numarray)
  var next_art_nr = senaste_art_nr + 1
  return next_art_nr
}

Autonumbering works on android if I use only

 
  var observationer = FeatureSetByName($map,"3_Fhin_Fjarilar_Artreg_2024",['art_nr'],false)  
  var transekt = $feature.transekt
  var abo = $feature.abo
  var arter = Filter(observationer, "(transekt = @transekt) AND (abo = @abo)")

  var numarray = []
  for (var n in arter){
    var nn = Number(n.art_nr)
    Push(numarray, nn)
  }
  var senaste_art_nr= Max(numarray)
  var next_art_nr = senaste_art_nr + 1
  return next_art_nr
 
But then the number gets updated when the feature is edited.
 
I appreciate any help!
Sincerely
Saskia
 
 
 
 
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1 Reply
SaskiaSandring
New Contributor

Any ideas if it's a bug or a mistake in my code?

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