Arcade general evaluation error creating an attribute rule

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03-08-2021 02:42 PM
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DrewDowling
Occasional Contributor III

I'm trying to apply an attribute rule to an enterprise geodatabase feature class.

I have a tree feature class that has both species (scientific) and common name attribute. I'm trying to automatically fill in the common name based on what species an editor enters. I have a lookup table, ENV_TREESPECIES_LUT, that lists the species name and common name.

The general workflow I'm trying to achive is:

If a new tree feature has a species value then search the ENV_TREESPECIES_LUT for that species and return the common name

But no no matter what logic I've tried the attribute rule editor in Pro gives me an evaluation error on line 5 of this script below. It seems to the filter function. What is the correct way to filter on an feature attribute?

I should mention that the code validates in the expression builder, the error is only thrown when I try to save the attribute rule.

 

var cn = ""
var fspecies =  $feature.Species
if(! isEmpty($feature.Species)) 
    var LUT = FeatureSetByName( $datastore, "ENV_TREESPECIES_LUT", ["Species", "CommonName"], false)
    var common_names = Filter(LUT, "Species = @fspecies")
    var common_name = first(common_names)
    if (! IsEmpty(common_name.CommonName))
        cn = common_name.CommonName
return cn

 

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jcarlson
MVP Notable Contributor

Your if statements need curly braces, not just indents. I think that's all you'd need to adjust there.

if(condition){
// do something
if(another_condition){
// do another thing
}
}

 

- Josh Carlson
Kendall County GIS

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2 Replies
jcarlson
MVP Notable Contributor

Your if statements need curly braces, not just indents. I think that's all you'd need to adjust there.

if(condition){
// do something
if(another_condition){
// do another thing
}
}

 

- Josh Carlson
Kendall County GIS
DrewDowling
Occasional Contributor III

It works perfectly now.

thank you.