RailRoady RailRoady generates Rails model (ActiveRecord, Mongoid, Datamapper) and controller UML diagrams as cross-platform .svg files, as well as in the DOT language. Code is based on the original "railroad" gem, patched and maintained over the years. Lineage can be traced via GitHub. I (Preston Lee) am not trying to hijack Peter Hoeg or Javier's project, but rather create a dedicated, lean gem t