Rails 3 Render Prawn pdf in ActionMailer

Question

How to render prawn pdf as attachment in ActionMailer? I use delayed_job and don\'t understand, how could I render pdf-file in action mailer (not in controller). What format

Answer 1

I followed the RailsCasts for PRAWN. Taken what has already been said and what I was trying to similarly accomplish, I set the attachment name and then created the PDF.

InvoiceMailer:

 def invoice_email(invoice)
    @invoice = invoice
    @user = @invoice.user
    attachments["#{@invoice.id}.pdf"] = InvoicePdf.new(@invoice, view_context).render
    mail(:to => @invoice.user.email,
         :subject => "Invoice # #{@invoice.id}")
  end