gistfile1.txt

  # render a file (image, video) inside the browser
  def inline
    @video = Video.find(params[:id])
    send_file @video.filepath.path, :type => @video.filepath_content_type
  end

  # force the browser to show the download modal box and send the file to the browser
  # you can use the :xsendfile => true option
  # send_file @video.filepath.path, :type => @video.filepath_content_type
  def download
    @video = Video.find(params[:id])
    send_file @video.filepath.path, :type => @video.filepath_content_type, :xsendfile => true
  end

  # the code above con be used with paperclip plugin
  # in your model write someth. like this
  has_attached_file :filepath,
                    :url => APP_CONFIG['url']+"/videos/inline/:id",
                    :path => ":rails_root/uploads/:attachment/:id/:style/:basename.:extension"

  # the path above is outside the public dir of the web server 
  # so, for the controller, you can control the access to file (security)