Make helpers available from a decorator's class methods

lib/draper/base.rb

@@ -100,10 +100,21 @@ module Draper
     # Rails helpers. Aliased to `.h` for convinience.
     #
     # @return [Object] proxy   
+    def helpers
+      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.
     #

spec/base_spec.rb

@@ -24,6 +24,20 @@ describe Draper::Base 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