Rails spinoffs - Apr 2007 - undefined method 'upload_status_for' for UploadBarController:Class?

Here is the code:

class UploadBarController < ApplicationController
  #UploadBarController
  upload_status_for :upload

  def upload
    case @request.method
    when :post
      @message = ''File uploaded: '' + params[:document]
[:file].size.to_s

      upload_progress.message = "Simulating some file processing stage
1..."
      session.update
      sleep(3)

      upload_progress.message = "Continuing processing stage 2..."
      session.update
      sleep(3)

      redirect_to :action => ''show''

      finish_upload_status "''#{@message}''"
    end
  end
end

What is the problem? Do i missing any require file or object? How do i
include them, and what library is that?


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