Get the attributes of a mongoid object with their aliased names as the keys

aliased_attributes.rb

class Game
  include Mongoid::Document

  def aliased_attributes
    attributes.inject({}) { |attrs, (raw_key, raw_value)|
      attrs[Game.aliased_fields.invert.fetch(raw_key) { raw_key }] = raw_value
      attrs
    }
  end
end