Systho

class Podium
  def initialize(results)
    @results = results
  end

  def rank_for(key)
    score = results[key]
    return 0 if score.nil?
    index = reverse_results_hash.keys.index(score)
    (0...index).to_a.sum{|prev_index| ranked_at(prev_index ).size } + 1

Systho

class ApplicationDecorator < Draper::Decorator
  extend Memoist
  
  delegate_all
  
  def method_added(method_name)
    super
    return if [:[], :initialize, :new].include?(method_name) # those method cannot be memoized
    return if respond_to?(:object_class?) && object_class? && (method_name.to_s == object_class.name.underscore) # do not memoize object alias

Systho

Rails.application.routes.draw do

  concern :archivable do
    scope module: parent_resource.plural do
      resources :archiving, only: [:create, :destroy]
    end

  end