FEATURES ======== Let's assume an model class named Entry, where we want to define the "image" column as a "file_upload" column. class Entry < ActiveRecord::Base file_column :image end * every entry can have one uploaded file, the filename will be stored in the "image" column * files will be stored in "public/entry/image/<entry.id>/filename.ext" * Newly uploaded files will be stored in "public/ent