subject.rb in pears-0.1.1

- old
+ new

@@ -3,10 +3,11 @@
 module Pears 
   # A subject is a collection of settings.
   # You could different Pears::Subjects in your application for different parts
   # of its domain. for instance: application_settings, theming or translations.
   class Subject
+    include Enumerable
     attr_reader :name
 
     def initialize(name, *layers)
       @name = name
       @layers = layers
@@ -36,9 +37,13 @@
     # Projects the layers to a hash that van be used as a single source of truth.
     def project
       layers.reverse.reduce(Hash.new) do |hash, layer|
         hash.deep_merge(layer.data)
       end.with_indifferent_access
+    end
+
+    def each(&block)
+      project.each(&block)
     end
 
     private
 
     def layers