Inflector::controllerize

Ok, so I'm bored. After Ben's suggestion for improving POST redirections I decided to implement a "controllerize" inflector ;)

Not sure yet how to get this into String (so I can do: "user".controllerize). I tried going via class String, module Inflections, and via module CoreExt with no joy... so for now you still have to invoke it via Inflector. I welcome suggestions, but I really should stop distracting myself with nifty metaprogramming. ;)

Anyway, this is the code - stuff it into somewhere like environment.rb:

module Inflector
  # turns a given class name into the properly capitlkaised controller name.
  # This can be fed to "constantize" to get the actual controller by this
  # name
  def controllerize(word)
    # make sure it's the raw class name, camelize then add controller 
    "#{word.demodulize.pluralize.camelize}Controller"
  end
end

Examples of use follow:

>> Inflector.controllerize("user")
=> "UsersController"
>> Inflector.controllerize("my_widget")
=> "MyWidgetsController"
>> Inflector.controllerize("String::Thingy")
=> "ThingiesController"
>> ctrl = Inflector.controllerize("user").constantize
=> UsersController
>>