config/initializers/paperclip.rb

   1 module Paperclip
   2   class AssetUrlGenerator < UrlGenerator
   3     include Sprockets::Helpers::IsolatedHelper
   4     include Sprockets::Helpers::RailsHelper
   5
   6     def for(style_name, options)
   7       url = super(style_name, options)
   8
   9       if url =~ /^\/assets\/(.*)$/
  10         asset_path($1)
  11       else
  12         url
  13       end
  14     end
  15   end
  16 end
  17
  18 Paperclip::Attachment.default_options[:url] = "/attachments/:class/:attachment/:id_partition/:style/:fingerprint.:extension"
  19 Paperclip::Attachment.default_options[:path] = "#{ATTACHMENTS_DIR}/:class/:attachment/:id_partition/:style/:fingerprint.:extension"
  20 Paperclip::Attachment.default_options[:url_generator] = Paperclip::AssetUrlGenerator