Get a list of domain values from feature layer?

JesSkillman

Hi,

I'm new to arcgis API for python. I can't figure out how to get a list of domain values from a hosted feature layer. I did read the api-reference, and can see that there is a query_domain method for the FeatureLayerCollection class (here: arcgis.features module — arcgis 1.8.2 documentation ) but I don't understand the syntax well enough to figure out how to actually write the code.

Thank you,

Jes

Kevin_McIntyre

The best I could come up with is that you'll have to access the properties of the FL and loop through it to find coded values. 

Here's a sample:

from arcgis import GIS

gis = ("https://arcgis.com", "username", "password")

#Get the arcgis item (this would be your hosted FGDB).
item = gis.content.get("itemID")

#Get the layers list from the item.
layers = item.layers

#Select the layer from the list you want to use.
fl = layers[0]

#Get the properties.
properties = fl.properties

#Loop through the JSON to extract the coded values and save them to a list. 

lst = []

for row in properties[fields]:

   if row['domain']:

      lst.append(row['domain'])

That should get you a list of the dictionaries associated with each coded domain into a neat list.