cw.rb

if ENV['RAILS_ENV'] == 'production'

  puts "USING PATCHED CARRIERWAVE"

  module CarrierWave
    module Uploader
      module Url

        def url(options = {})
          if file.respond_to?(:path)
            path = encode_path(file.path.gsub(File.expand_path(root), ''))
            "/#{path}"
          else
            "/not_found.png"
          end
        end
        
      end
    end
  end
end