camera_extension.rb

# Uncomment this if you reference any of your controllers in activate
# require_dependency 'application'


module CameraFields
 
  def add_camera_fields
    @additional_product_fields += [
        {:name => 'Cline Price'},
        {:name => 'Cost'},
        {:name => 'Manufacturers SKU'},
        {:name => 'Code'}
      ]
  end    
end

class CameraExtension < Spree::Extension
  version "1.0"
  description "Describe your extension here"
  url "http://yourwebsite.com/camera"

  def activate
    Admin::ProductsController.class_eval do
      include CameraFields
      before_filter :add_camera_fields
    end
 
    Admin::VariantsController.class_eval do
      include CameraFields
      before_filter :add_camera_fields
    end
  end
end