Mongoid::Grid mongoid_grid is a GridFS plugin for Mongoid::Document ***NOTE: The rack helper is no longer included in this project. If you need it, please switch to rack_grid: https://github.com/dusty/rack_grid Installation # git clone https://github.com/dusty/mongoid_grid.git # gem build mongoid_grid.gemspec # gem install mongoid_grid-0.0.x.gem Usage require 'mongoid_grid' class Monkey include Mongoid::Document include Mongoid::Grid field :name attachment :image end m = Monkey.create(:name => 'name') # To add an attachment m.image = File.open('/tmp/me.jpg') m.save # To remove an attachment m.image = nil m.save # To get the attachment m.image.read Inspired By - http://github.com/jnunemaker/grip