Update invoice_controller.rb

Added Document Number to filename

app/controllers/invoice_controller.rb

@@ -15,7 +15,8 @@ class InvoiceController < ApplicationController
   #
   def show
     base = QboInvoice.get_base.service
-    @pdf = base.pdf(base.fetch_by_id(params[:id]))
+    invoice = base.fetch_by_id(params[:id])
-    send_data @pdf, filename: "invoice.pdf", :disposition => 'inline', :type => "application/pdf"
+    @pdf = base.pdf(invoice)
+    send_data @pdf, filename: "invoice #{invoice.doc_number}.pdf", :disposition => 'inline', :type => "application/pdf"
   end
 end