topic Help creating an attribute rule that automatically Nulls an attribute when feature geometry is edited. in Attribute Rules Questions

Help creating an attribute rule that automatically Nulls an attribute when feature geometry is edited.

MDB_GIS — Wed, 11 Dec 2024 18:59:27 GMT

I'm fairly new to playing around with attribute rules. I am looking to have a rule that automatically nulls out two fields that store x and y geometry when a feature's geometry is changed. The reason for this is so that I can then run a GP tool later that automatically selects all features with a NULL value and calculates the new geometry for them in decimal degrees. I only want this rule to fire when the geometry of a feature is changed. Here is how I have configured the rule:

Here is my expression:

if (!IsEmpty($feature.Lat)){ return null; }

If I'm correct, that statement essentially says "If $feature.Lat is NOT empty, then make it Null"

However the rule does nothing. If I go in and edit a point's geometry, the geometry is never set to null.

Am I missing something?

Re: Help creating an attribute rule that automatically Nulls an attribute when feature geometry is edited.

TedHoward2 — Mon, 16 Dec 2024 19:38:42 GMT

That looks correct to me. The Lat field should be getting nulled whenever you move a point. Maybe you have a conflicting rule or it's disabled? Make sure the rule is firing by returning a test value without the IsEmpty check.

Re: Help creating an attribute rule that automatically Nulls an attribute when feature geometry is edited.

MDB_GIS — Tue, 17 Dec 2024 12:40:40 GMT

It was a conflicting rule... Good grief! I'm ashamed to admit how much time this oversight cost me. Lol