新建竞赛时奖励设置为不能为空

app/models/contest.rb

@@ -24,7 +24,7 @@ class Contest < ActiveRecord::Base
 
   validates_length_of :name, :maximum => NAME_LENGTH_LIMIT
   validates_length_of :description, :maximum => DESCRIPTION_LENGTH_LIMIT
-  validates_presence_of :author_id, :name, :deadline
+  validates_presence_of :author_id, :name, :deadline,:budget
   validates_format_of :deadline, :with => /^[\d]{4}[-][\d]{1,2}[-][\d]{1,2}$/
   # validates_format_of :budget, :with => /^(\d+)$|^(\d+).([0-9]{2})|^(\d+).([0-9]{1})$/
   validate :validate_user