Make it very easy to accept Carrierwave uploads to a Mongoid GridFS-backed data store and then deliver them.

Add this to your config/routes.rb:

My::Application.routes.draw do
  CarrierWave::Mongoid::Media.routes(self)
end

And you'll have a /media/:id route that just delivers whatever Carrierwave uploads to this app, as long as you're using carrierwave-mongoid to do the uploads. CarrierWave's grid_fs_access_url will be set correctly for you, too.

You can specify if any of the paths should respond with Content-Disposition: attachment headers with an initializer:

# config/initializers/carrierwave_mongoid_media.rb

CarrierwaveMongoidMedium.force_downloads_on do |path|
  # return true if the file should get Content-Disposition: attachment
end