Accepted Solutions
You can have Arcade generate a linkable URL, but you can't do it in a list.
If your popup is a field list, an expression that evaluates to a URL will show as a list. If your popup is a custom arrangement of HTML, there's no way to return a list of URLs as interactive links, as the expression will evaluate as text.
A workaround (though not an ideal one) is to have a series of expressions that look for "related record X" and return a URL if a record exists at the index value X, otherwise return nothing. In a custom attribute display, you could have all of your expressions appear one after the other.
The big issue with that workaround is that a FeatureSet cannot be sliced by an index the same way an array can. The following code is not pretty, but it works.
var rel = FeatureSetByRelationshipName($feature,"relationshipname", ['url_field'], false)
function get_index(x, fs){
if(Count(fs) > x){
var i = 0
for(var f in fs){
if(i == x){
return f['url_field']
}
i ++
}
}
}
get_index(0, rel)And you could create a series of expressions, just changing the number in the final get_index function each time.
Set the text and the URL to the same thing. That way, the link simply won't appear if there is no record at that position.
Create a long string of expressions in the custom display.
I didn't have a URL field, so I just appended the ObjectID to "google.com" to test, but it should work the same.
You can have Arcade generate a linkable URL, but you can't do it in a list.
If your popup is a field list, an expression that evaluates to a URL will show as a list. If your popup is a custom arrangement of HTML, there's no way to return a list of URLs as interactive links, as the expression will evaluate as text.
A workaround (though not an ideal one) is to have a series of expressions that look for "related record X" and return a URL if a record exists at the index value X, otherwise return nothing. In a custom attribute display, you could have all of your expressions appear one after the other.
The big issue with that workaround is that a FeatureSet cannot be sliced by an index the same way an array can. The following code is not pretty, but it works.
var rel = FeatureSetByRelationshipName($feature,"relationshipname", ['url_field'], false)
function get_index(x, fs){
if(Count(fs) > x){
var i = 0
for(var f in fs){
if(i == x){
return f['url_field']
}
i ++
}
}
}
get_index(0, rel)And you could create a series of expressions, just changing the number in the final get_index function each time.
Set the text and the URL to the same thing. That way, the link simply won't appear if there is no record at that position.
Create a long string of expressions in the custom display.
I didn't have a URL field, so I just appended the ObjectID to "google.com" to test, but it should work the same.
Josh,
Thank you very much! I am a newbie at Arcade, but I get this error:
Josh,
I have an interesting observation/question for you. I followed your above code and it works wonderfully. The problem I have now, is that when I go back to my expressions and test them, I get an error. They still function in my webmaps, but when I test them, I get the attached error. I also can't copy the expression to make another one because of the error. Did something or an update happen to Arcade for this to no longer function?
