Can I save a generated by prawn pdf file to the profect folder, using initialize method?

Question

I have an OrderPdf class that inherits from Prawn::Document Here is the content of the class:

class OrderPdf < Prawn::Document
  include ActionView::Helpers::NumberHelper
  include ActionView::Helpers::TagHelper

  def initialize(order)
    super(top_margin: 50, size: 12)
    @order = order
    logo
    # Other methods that generate pdf's content
    footer
  end

  def logo
    # Some stuff here
  end

  def footer
    #Some stuff here
  end
end

I call it like this: OrderPdf.new(@order). Pdf file is generated, but what I need - is to save it into my project with the name, something like this: "#{Rails.root}/public/uploads/orders/order-#{order.order_number}.pdf" I know, that I can do this: Prawn::Document.generate("#{Rails.root}/public/uploads/orders/order-#{order.order_number}.pdf"), but can I do something simialar with the existing code? Thanks ahead.

Answer 1

You can call the render_file method in the initializer.

def initialize(order)
  super(top_margin: 50, size: 12)
  @order = order
  logo
  # Other methods that generate pdf's content
  footer
  render_file "#{Rails.root}/public/uploads/orders/order-#{order.order_number}.pdf"
end