Do you have a preferred programming pattern for adding functionality to an ActiveRecord? As an example, say I have some gnarly trig functions for distance and bearing between pairs of latitude and longitude:
=== file: latlng.rb module LatLng
def haversine_distance(lat1, lng1, lat2, lng2) ... end
def bearing(lat1, lng1, lat2, lng2) ... end === EOF
... and I want to mix in haversine_distance(other_ar) and bearing(other_ar) methods into an ActiveRecord. The shim functions would look like this:
