food court and Booking ID for order and receipt

app/pdf/order_item_customise_pdf.rb

@@ -52,6 +52,15 @@ class OrderItemCustomisePdf < Prawn::Document
 
   # Write Order Information to PDF
   def order_info(order_no, order_by, order_at)  
+    #booking ID
+    booking_id = get_booking_id(order_no)
+
+    y_position = cursor
+    bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
+        text "Booking: #{booking_id}", :size => self.item_font_size,:align => :left    
+    end
+
+    move_down 1
     y_position = cursor
     bounding_box([0,y_position], :width => self.item_width, :height => self.item_height) do
         text "OrderNo: #{order_no} ", :size => self.order_no_font_size,:align => :left    
@@ -142,4 +151,12 @@ class OrderItemCustomisePdf < Prawn::Document
         end
     end
 
+    def get_booking_id(order_no)
+        booking = Booking.joins(" JOIN booking_orders bo ON bo.booking_id = bookings.booking_id")
+                .joins(" JOIN orders o ON o.order_id=bo.order_id")
+                .where("o.order_id='#{order_no}'")
+                .first()
+
+        return booking.booking_id
+    end
 end