Make helpers available from a decorator's class methods

lib/draper/base.rb

@@ -101,10 +101,21 @@ module Draper
     #
     # @return [Object] proxy   
     def helpers
-      Thread.current[:current_view_context]
+      self.class.helpers
     end
     alias :h :helpers
 
+    # Access the helpers proxy to call built-in and user-defined
+    # Rails helpers from a class context.
+    #
+    # @return [Object] proxy   
+    class << self
+      def helpers
+        Thread.current[:current_view_context]
+      end
+      alias :h :helpers
+    end    
+
     # Fetch the original wrapped model.
     #
     # @return [Object] original_model

spec/base_spec.rb

@@ -23,8 +23,22 @@ describe Draper::Base do
   context(".helpers") do
     it "should have a valid view_context" do
       subject.helpers.should be
+    end
+    
+    it "should be aliased to .h" do
+      subject.h.should == subject.helpers
     end    
   end
+  
+  context("#helpers") do
+    it "should have a valid view_context" do
+      Decorator.helpers.should be
+    end
+    
+    it "should be aliased to #h" do
+      Decorator.h.should == Decorator.helpers
+    end
+  end
 
   context(".decorates") do
     it "sets the model class for the decorator" do