update member discount

app/controllers/origami/mpu_controller.rb

@@ -5,9 +5,10 @@ class Origami::MpuController < BaseOrigamiController
 
     # limit mpu_amount
     sale_data = Sale.find_by_sale_id(@sale_id)
-    total = sale_data.grand_total
+    total     = sale_data.grand_total
     @mpucount = 0
-    others = 0
+    others    = 0
+
     sale_data.sale_payments.each do |sale_payment|
         if sale_payment.payment_method == "mpu"
           @mpucount = @mpucount + sale_payment.payment_amount
@@ -17,6 +18,9 @@ class Origami::MpuController < BaseOrigamiController
     end
     @can_mpu = total - @mpucount - others
 
+    @member_discount = MembershipSetting.find_by_discount(1)
+    @sub_total       = sale_data.total_amount
+    @membership_id   = sale_data.customer.membership_id
   end
 
   def create