Do not use (not yet released)

Installation

Add to Gemfile

gem 'uploadbox'

Run generators

rails g uploadbox:image

Add jquery and uploadbox to application.js

//= require jquery
//= require jquery_ujs
//= require uploadbox

Add uploadbox to application.css

/*
 *= require uploadbox
 */

Migrate database

rake db:migrate

Create a bucket on S3 (US region)

Set environmet variables

S3_KEY=AAAA123BBBB
S3_SECRET=abc123ABcEffgee122
S3_REGION=sa-east-1
S3_BUCKET=uploads

Usage

Add uploads_one to your model

class Post < ActiveRecord::Base
  uploads_one :picture, thumb: [100, 100], regular: [600, 300]
end

Add field to form

<%= f.uploader :picture %>

Attach upload on controller

@post.attach_picture(params[:picture_id])

Show image

<%= img @post.picture.regular if @post.picture? %>

Recreate versions

You might come to a situation where you want to retroactively change a version or add a new one. You can use the update_#{upload_name}_versions! method to recreate the versions from the base file. For a post with a picture:

Post.update_picture_versions!

Heroku

Set environmet variables

HEROKU_API_KEY=ab12acvc12
HEROKU_APP=your-app-name

Add Redis to Go addon

heroku addons:add rediscloud:20