fix

app/controllers/welcome_controller.rb

@@ -17,7 +17,7 @@
 
 class WelcomeController < ApplicationController
   caches_action :robots
-  before_filter :entry_select, :entry_select_contest, :only => [:index]
+  before_filter :entry_select_course, :entry_select_contest, :only => [:index]
  
   def index
     # @news = News.latest User.current
@@ -113,13 +113,13 @@ class WelcomeController < ApplicationController
   private
 
   # 判断网站的入口，是课程 course 则跳过index去渲染 course 方法
-  def entry_select
+  def entry_select_course
     (course() and render :course and return 0) if request.original_url.match(/course\.trustie\.net/)
   end
   
   def entry_select_contest
     if request.original_url.match(/contest\.trustie\.net/)
-      course
+      contest
       render :contest, layout: false
       return 0
     end

app/models/setting.rb

@@ -163,7 +163,7 @@ class Setting < ActiveRecord::Base
   end
 
   # fixed domain url in development. tantantan's bug
-  if Rails.env.development?
+  if Rails.env.production?
     methods.map do |m|
       define_singleton_method m do; nil; end if m.to_s =~ /([a-zA-Z]+_domain)$/
     end