增加订单导入功能

app/models/order_detail.rb

@@ -23,7 +23,7 @@ class OrderDetail < ActiveRecord::Base
       detail.price=pd.price
       detail.order_status=order.status
       detail.depart=order.depart
-      od.pv=od.pv+detail.nums*detail.pv
+      od.pv=od.pv+detail.nums*pd.pv
     end
 
     # 更新order信息