Hello Kara (?!)
Yes - you can have an attribute rule that recalculates the geometry of polygons in a different feature class when the source feature is updated.
You will have to think what you do for Insert (new), Update and Delete events.
You might want to read this blog:
https://www.esri.com/arcgis-blog/products/arcgis-pro/data-management/advanced-gdb-attribute-rules-ed...
Here is an example I wrote to update a 'Section' PLSS feature class when another PLSS aliquote is updated:
var twpNo = $feature.TWNSHPNO
var twpDir = $feature.TWNSHPDIR
var rangeNo = $feature.RANGENO
var rangeDir = $feature.RANGEDIR
var sectionNo =$feature.FRSTDIVNO
//The attribute rule is added to the Intersected polygon class on the FRSTDIVNO field on update
//select all other intersected polygons that belong to the same section
//construct a sql query for intersected and sections
var sql = "TWNSHPNO = '" + twpNo + "' And TWNSHPDIR = '" + twpDir + "' And RANGENO = '" + rangeNo + "' And RANGEDIR = '" + rangeDir + "' And FRSTDIVNO = '" + sectionNo + "'";
//dissolve all intersected polygons in the section to get a polygon geometry
var fields = ['TWNSHPNO','TWNSHPDIR','RANGENO','RANGEDIR','FRSTDIVNO', 'GlobalID'];
var intersected = FeatureSetbyName($datastore, "Intersected",fields, true);
var fsIntersected = Filter(intersected,sql);
var SectionGeometry = Geometry($feature);
for (var interPoly in fsIntersected){
SectionGeometry = Union(SectionGeometry, Geometry(interPoly));
}
//find the corresponding section geometry feature
var sections = FeatureSetbyName($datastore, "Sections",fields, true);
var fsSections = Filter(sections,sql);
//get the section row (we should only have one )
var sectionToUpdate = first(fsSections);
var sectionGlobalID = sectionToUpdate.GlobalID;
return {
//we want to just return the value of field `FRSTDIVNO` no change require
"result": $feature.Field,
//this keyword indicates an edit that need to happen, its an array since we can make many edits
"edit": [
{
//the other class we want to edit
"className" : "Sections",
//the type of edit, in this case we want to update so we say `updates`, its an array since we can make many updates
"updates" : [
{
//what feature we need to update? we can either find it by the globalid or the objectId
"globalID" : sectionToUpdate.GlobalID,
//what do we want to update (we can optionally add attributes property and update properties there)
"geometry": sectionGeometry
}
]
}
]
}
