update

app/controllers/api/bill_controller.rb

@@ -8,9 +8,15 @@ class Api::BillController < Api::ApiController
 
     #create Bill by Booking ID
     if (params[:booking_id])
-      @sale = Sale.new
-      @status, @sale_id = @sale.generate_invoice_from_booking(params[:booking_id], current_login_employee.name)
-
+      booking  = Booking.find(params[:booking_id])
+      if booking
+        if booking.sale_id.nil?
+          @sale = Sale.new
+          @status, @sale_id = @sale.generate_invoice_from_booking(params[:booking_id], current_login_employee.name)
+        else
+          @status = true
+        end
+      end
     elsif (params[:order_id])
       @sale = Sale.new
       @status, @sale_id = @sale.generate_invoice_from_order(params[:order_id], current_login_employee.name)

app/controllers/origami/payments_controller.rb

@@ -24,8 +24,8 @@ class Origami::PaymentsController < BaseOrigamiController
          if spay.payment_method == "cash"
            @cash = spay.payment_amount
          end
-         if spay.payment_method == "mpu"
-           @other = spay.payment_amount
+         if spay.payment_method == "mpu" || spay.payment_method == "paypar"
+           @other += spay.payment_amount
          end
       end
     end