How to Compare feature class in Model Builder?

LeandroBenicio_de_Souza1 — Sat, 29 Oct 2016 12:46:25 GMT

HI, I'm trying to compare the feature classe in 2 geodatabase, and make an APPEND if the name is the same. I'm trying with WHILE but not work correct. How can I do it?

Re: How to Compare feature class in Model Builder?

curtvprice — Sun, 12 Dec 2021 09:14:08 GMT

If then is tricky with ModelBuilder.

I think the most straightforward way to do this is to do the compare with a Python function inside a Calculate Value tool. Have your function return 1 or 0 and make the returned value a precondition to your append operation.

expression

test_same(r"%Featureclass1%", r"%Featureclass2%")‍

code block

def test_same(fc1, fc2):
  nm1 = arcpy.Describe(fc1).name.lower()
  nm2 = arcpy.Describe(fc2).name.lower()
  if nm1 == nm2:
    return 1
  else:
    return 0‍‍‍‍‍‍‍

topic Re: How to Compare feature class in Model Builder? in ModelBuilder Questions

How to Compare feature class in Model Builder?

Re: How to Compare feature class in Model Builder?