promotion add cash and cent

app/models/promotion.rb

@@ -100,8 +100,18 @@ class Promotion < ActiveRecord::Base
           field :send_prodcut1
           field :send_prodcut2
           field :send_prodcut3
-          field :cash
-          field :cent
+          field :cash do
+            label "代办金（元）"
+            formatted_value do # used in form views
+              value.to_f / 100
+            end
+          end
+          field :cent do
+            label "积分（元）"
+            formatted_value do # used in form views
+              value.to_f / 100
+            end
+          end
           field :is_enable
           field :created_at
         end