add ActiveRecord::Base.finder_method

[catmando]

class Foo < ActiveRecord::Base
  finder_method :random do # will accept params
    offset(rand(Thing.count)).first
  end
end

on client:

Foo.random # returns a random Foo
Foo.random! # returns the last random Foo, and gets a new one

easy brute force implementation

1. create a scope called random on server that returns the result of the block wrapped in a array
2. on client automatically add the .first back to the scope