"Test execution error" in Arcade expression

swhitcombMCC — Sun, 02 Jul 2023 22:55:56 GMT

I'm getting an error when writing an Arcade expression for a pop-up.

I have a table called "Rose Classes" with two fields: "Class" and "Description". I have a feature layer with a field called "Class". The Class field in the table matches the Class field in the feature layer. For a given Class within the feature layer, I want to return the Description for that Class from the Rose Classes table.

I asked ChatGPT for help and got the code below, which outputs "Test execution error: Execution error - Cannot access value using a key of this type. Verify test data."

I am very new to Arcade, so I don't even know where to begin to debug this code. I wrote in some return commands and was able to return everything but the final step.

var classesTable = FeatureSetByName($map, 'Rose Classes'); var currentClass = $feature.Class; var matchingFeatures = Filter(classesTable, 'Class = @currentClass'); var description = ''; if (Count(matchingFeatures) > 0) { description = matchingFeatures[0].Description; } return description;

Re: "Test execution error" in Arcade expression

JohannesLindner — Mon, 03 Jul 2023 10:13:41 GMT

matchingFeatures is a Featureset, a collection of Features. While it would be cool to access the Features by their index, that's not how it works. You can get the First() feature, though.

var classesTable = FeatureSetByName($map, 'Rose Classes') var currentClass = $feature.Class var matchingFeature = First(Filter(classesTable, 'Class = @currentClass')) return IIf(matchingFeature == null, '', matchingFeature.Description)

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"Test execution error" in Arcade expression

Re: "Test execution error" in Arcade expression