prints, excels,pdf gems

app/models/print_worker.rb

@@ -0,0 +1,20 @@
+require 'cups'
+
+class PrintWorker
+  def self.printers()
+    Cups.show_destinations
+  end
+
+  def self.default_printer()
+    Cups.default_printer
+  end
+
+  def self.print_receipt_cashgo(sale,receipt_setting, printer_destination,order_id)
+
+    pdf = CashPdf.new(sale,receipt_setting,order_id)
+    pdf.render_file "tmp/receipt_#{sale.receipt_no}" + ".pdf"
+
+    page = Cups::PrintJob.new("tmp/receipt_#{sale.receipt_no}.pdf", printer_destination)
+    page.print
+  end
+end