How do i download prawn pdf file while using form submit? [closed]

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def index
    @forms = Form.all
    respond_to do |format|
      format.html
    end
  end
    def submit
        respond_to do |format|
        format.pdf {render  }

    end
  开发者_Python百科  end

submit.pdf.prawn file
pdf.text "successfully submitted"

---

It is possible for Prawn to generate and return the PDF without having to to save locally...

def submit
  send_data(generate_pdf, :filename => "output.pdf", :type => "application/pdf") 
end

private 
def generate_pdf
    Prawn::Document.new do
        text "Hello Stackoverflow"
    end.render 
end

---

Use prawn to generate a pdf that's saved somewhere in your /public folder, like:

Prawn::Document.generate("#{RAILS_ROOT}/public/pdfs/myfile.pdf")

Then just use your controller to redirect users to that location:

redirect_to '/pdfs/myfile.pdf'