create_directly.rb

def create_directly

    @attachment = Attachment.new
    file_name = params[:file_name]
    if request.body.class == StringIO
      FileUtils.mkdir "#{Rails.root}/tmp/" + @attachment.id.to_s
      file = File.open("#{Rails.root}/tmp/" + @attachment.id.to_s + "/" + file_name, "w")
      file << request.body.string
      file.close
      @attachment.attachment = File.open("#{Rails.root}/tmp/" + @attachment.id.to_s + "/" + file_name, "r")
    elsif request.body.class == Tempfile
      @attachment.attachment = request.body
    end
    if @attachment.save
      result = {}
      result[:success] = true
      result[:attachment_id] = @attachment.id.to_s
      result[:thumb] = @attachment.attachment.url(:thumb)
      result[:url] = @attachment.attachment.url
      render :json => result, :status => 200
    else
      render :json => { "error" => "Your upload got messed up. Sorry." }, :status => 500
    end

end