If Rails really, REALLY cared about OO principles

gistfile1.txt

(In response to https://gist.github.com/1687527, with apologies and smoochies to @jc00ke.)

my-proj
  |
  -- app
    |
    -- data_mappers   <--- (see note below)
    -- models
    -- views
    -- controllers
  -- config
  -- ...

NOTE:  "data_mappers" does not refer to DataMapper[1], which is an implementation of the Active Record design pattern[2].  For the Data Mapper design pattern, see [3].

[1] http://datamapper.org/
[2] http://martinfowler.com/eaaCatalog/activeRecord.html (not to be confused with Rails' ActiveRecord)
[3] http://martinfowler.com/eaaCatalog/dataMapper.html