therabidbanana

class ApplicationController
  # Sharing the setup of processors, since many actions will use them
  #   - thinking of switching this out for a facade
  def trigger_processor(name, listening_controller)
    processor_klass = processors[name]
    processor = processor_klass.new(params)
    processor.add_listener(EventNotifier.new)
    processor.add_listener(listening_controller)
    processor.process(current_user)
  end

therabidbanana

I've been playing with the idea of combining the data array defined in application/collection+json 
(http://amundsen.com/media-types/collection/format/) with hal links for templated data.

Seems like a good way to keep the media type lightweight while allowing the api to specify the fields 
it would like passed to a given resource. 

I haven't really given much thought to an xml variation, but I took a stab at it as well. 

therabidbanana

class Comparison
  include DataMapper::Resource
  property :id, Serial
  has n, :msruns, :through => Resource
  has n, :secondary_msruns, "Msrun", :through => SecondaryMsrunComparison, :via => :msrun 

  belongs_to :metric
end

class Msrun