prawnto question: how to attach a pdf (from a show action) in the mailer

Hi

I have vacancies, I want to recommend, and if wanted directly attache as pdf.

You get the PDF with e.g. /vacancies/9887.pdf How can I attach some thing in a mail?

Whats the best pratice here? Sending through Rack? Streaming / self calling HTTP URI and attach it?

I tried even to do something like this:

  # Forward via Email   def forward     render_to_string :action => "show"     pdf = response.body     @vacancy = Vacancy.find_by_vacancy_number(params[:vacancy_number])     if NotificationMailer.recommendation(@vacancy, params[:email], (params[:pdf] == 'true'), params).deliver       flash[:notice] = 'The Job offer has been sent.'     else       flash[:notice] = 'The Job offer could not be sent'     end     redirect_to :action => :show, :id => params[:vacancy_number]   end

Thanks for any clue!