upload.rb

class AmazonImageUploader
  def initialize(id, file)
    name = file[0][:image].original_filename
    directory = "public/uploads/"
    path = File.join(directory, name)
    File.open(path, "wb") { |f| f.write(file[0][:image].read) }
    @file = path
    @id = id
  end

  def process
    @uploader = MessageImageUploader.new
    raise "Uploader not created" if @uploader.nil?
    @uploader.store!(File.open(@file))
    Resque.enqueue(MessageImageWorker, @id, @uploader)
  end
end