FeatureSetByAssociation function takes only $feature as input

OlgaKoblet

Hi all,

as described in this blog, we can use the FeatureSetByAssociation function, for example, to get all the containments of the station boundary. However, there is a message that the syntax is invalid if  there is a variable as input (not $feature). Does anyone has an idea how to fix it?

Thank you.

 

var boundaries = FeatureSetByName($datastore, 'StructureBoundary', ['globalid'], true) //get all structure boundaries with geometry
var intersect = Intersects(boundaries, $feature) //get all boundaries that intersect with created feature
var stationBoundary = First(intersect) //select first station boundary (the only one) in order to convert from featureSet to feature
var content = FeatureSetByAssociation(stationBoundary, 'content') //get all containments of stationBoundary -> ERROR Invalid expression. Feature expected.
var assembly = Filter(content, "className = 'ElectricAssembly'") //filter containments for electricAssemblies

return{ //returns nothing - edits to containment of class "ElectricAssembly" with globalid of assembly
"edit":[{
"className": "^UN_Association",
"adds": [{
"fromClass": "ElectricAssembly",
"fromGlobalId": "assembly.globalid",
"toClass": "ElectricJunction",
"toGlobalId": "$feature.globalId",
"associationType": "container"
}]
}]
}

Syntax_error2.PNG

Untitled.png

3.png

MikeMillerGIS

I believe the code is correct, but the validation logic is not returning a feature.  So you just need to add a check for if stationBoundary is null and that way the validator exits early.

Add this under var stationBoundary  = First(.....

if (IsEmpty(stationBoundary)){

  return;

}