lib/neo/rails/exposure.rb in neo-rails-0.0.1 vs lib/neo/rails/exposure.rb in neo-rails-0.0.2

@@ -1,5 +1,7 @@
+require 'active_support/concern'
+
 module Neo
   module Rails
     # A really simple version of exposing variables to the view.
     # Bases on attr_reader and helper_method.
     module Exposure
@@ -7,16 +9,16 @@
 
       class UndeclaredVariableError < StandardError; end
 
       included do
         class_attribute :exposed_vars
-        self.exposed_vars = Set.new
+        self.exposed_vars ||= Set.new
       end
 
       module ClassMethods
         # Defines the variables to be exposed.
         def exposes(*names)
-          exposures = names.map(&:to_sym).reject { |name| exposed_vars.include?(name) }
+          exposures = names.map(&:to_sym)
           self.exposed_vars.merge exposures
           attr_reader *exposures
           helper_method *exposures
         end
       end