Calling A Model In Attribute Rules

[AKRRMapGuy]

I am trying to create a polyline copy of a feature when it gets created in a polygon feature class. 

The best way I see to do this is a feature to polyline tool inside of model builder, or running a model on a nightly process. It would be cool if we could get the polyline to generate with all the attributes from the polygon upon feature insertion by calling a model in attribute rules.

All of this is happening inside of an Enterprise GDB on SQL.

[MikeMillerGIS]

You can convert the rings of a polygon to a path of a line, just pop the last coordinate that closes the polygon.  Use that json to construct a new polyline and return in an attribute rule.  

Here is a sample you can test in the playground:

var p = Polygon({
  rings: [
    [
      [-97.06138,32.837],
      [-97.06133,32.836],
      [-97.06124,32.834],
      [-97.06127,32.832],
      [-97.06138,32.837]
    ]
  ],
  spatialReference: { wkid: 3857 }
});

// Sample is only a single part polygon, can loop for multipart
var p_path = Dictionary(p)['rings'][0]
// remove last coordinate
Erase(p_path, -1)

var l = Polyline({
  paths: p_path,
  spatialReference: { wkid: 3857 }
});
return l