In ArcGIS Online in Field Calculator can I use a field value from another FeatureClass?

AngelRomoSandoval

Hello, I hope someone could help me:

When I try to calculate a field of a Featureclass using the field value of another FeatureClass I do if it is possible to call it.

I write this code but when I test using "return" I get nothing

 

var otherFeatureClass= FeatureSetByName($datastore,'OtherFeatureClass')

return otherFeatureClass.Name

 

 

jcarlson

To build on this, specifically using the FeatureSetByPortalItem function allows you to bring in any other web layer you have access to, even those not in your Portal. No joins required, and this function should work in Pro as well.

Consider this example: I've got a test layer, and I want to update one of its fields. I have have chosen the Living Atlas's OpenStreetMap Shops, and will pipe in one of its attribute.

// get osm shops
var fs = FeatureSetByPortalItem(
    Portal('https://kendall.maps.arcgis.com/'),
    'a917a3c9e89544d9a1446251bb693bbd',
    0
)

// get first feature
var feat = First(fs)

// return `shop` attribute
return feat['shop']

And that's it! Note that I just grabbed the first feature for each, since I don't actually have a shared field between these layers, but you could easily use Filter on the featureset to get matching records based on some ID, or even use a spatial intersection to find features which intersect with yours.