Arcade Expression Error

Question

Hello,

I am trying to figure out how to write an arcade expression that will populate 1 field based off of the values in 4 other fields. I am using attribute rules and still very green to arcade expression. I would also like the attribute rules to work in field maps. When our field crews go out they will be filling in the 4 fields mentioned above and I am having trouble piecing this expression together.

Field Name to Auto Populate: serviceLineClassification

Field Names to Trigger Auto Populate

systemBasisOfClassification1

systemInstallationDateRange

customerBasisOfClassification1

customerInstallationDateRange

Note: All of the fields have domains connected to them. The expression I put together below is just the first of many as I need to cover all of the variables. However, I am having trouble getting the first expression together.

Expression I Tried:

if (DomainName($feature, 'systemBasisOfClassification1', 'A) Records Review', "n/a") == 'A) Records Review' && DomainName($feature, 'systeminstallationDateRange', 'n/a') == "L) 1991-2000', 'n/a')) {return DomainName($feature, 'serviceLineClassification', 'Non-Lead', 'n/a')}

Hope all of this makes sense and in advanced thanks to anyone who can help.

kenbuja · Answer

The second DomainName appears to be incorrect. You have double quote before L but no closing double quote, no value, an extra 'n/a', and an extra parenthesis. Should that be like this?

if (DomainName($feature, "systemBasisOfClassification1", "A) Records Review", "n/a") == "A) Records Review" &&
    DomainName($feature, "systeminstallationDateRange", "L) 1991-2000", "n/a") == "L) 1991-2000") {
  return DomainName($feature, "serviceLineClassification", "Non-Lead", "n/a");
}

ZachBodenner · Answer

I dont have much experience with the DomainName function, but I often will run attribute rules on fields that have domains without using it and have no problems. One thing I see is that there might be some mismatched quotes (single vs double to encase a text string). I might be wrong but you could look at that.

var sysClass = $feature.systemBasisOfClassification1
var sysInst = $feature.systeminstallationDateRange

var c = WHEN(sysClass=='A) Records Review' && sysInst == 'L) 1991-2000','Non-Lead','UNKNOWN')
return c

You might be able to simplify a bit by using something like the above. You'd be able to add additional subsets of the WHEN function just by adjusting the values from your dataset.