test sum

app/models/cash_balance.rb

@@ -4,7 +4,7 @@ class CashBalance < ActiveRecord::Base
   self.table_name = "cash_balances"
   belongs_to :wx_user, :foreign_key => :wx_uid
   validates_presence_of :wx_uid, :count, :relate_id, :source
-  attr_accessor :remain_sum,get_happen_total
+  attr_accessor :remain_sum,:get_happen_total
 
   #after_find :get_happen_total