diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index 9330d1d44..516b88310 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -148,7 +148,7 @@ class WelcomeController < ApplicationController
   end
 
   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
     url = request.original_url
     if url.include?("course.trustie.net")
@@ -166,28 +166,6 @@ class WelcomeController < ApplicationController
     
   end
 
-  # 判断网站的入口，是课程 course 则跳过index去渲染 course 方法
-  def entry_select_course
-    if request.original_url.match(/.*course\.trustie\.net/)
-      (course() and render :course and return 0) 
-    end
-  end
-  
-  def entry_select_contest
-    if request.original_url.match(/.*contest\.trustie\.net/)
-      contest
-      render :contest
-      return 0
-    end
-  end
-  
-  def entry_select_user
-    if request.original_url.match(/.*user\.trustie\.net$/)
-      redirect_to(:controller => "users", :action => "index")
-      return 0
-    end
-  end
-
   # def render(*args)
   #   _fake if @fake_filter
   #   super
diff --git a/app/models/project.rb b/app/models/project.rb
index 35a360ac3..d6283e44f 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -56,13 +56,12 @@ class Project < ActiveRecord::Base
   #added by xianbo for delete biding_project
   has_many :biding_projects, :dependent => :destroy
   has_many :contesting_projects, :dependent => :destroy
-  has_many :projecting_softapplications, :dependent => :destroy
   has_many :softapplications, :through => :projecting_softapplications
   #ended by xianbo
   # added by fq
   has_many :journals_for_messages, :as => :jour, :dependent => :destroy
-  has_many :homework_for_courses, :dependent => :destroy
-  has_many :homeworks, :through => :homework_for_courses, :source => :bid, :dependent => :destroy
+  #has_many :homework_for_courses, :dependent => :destroy
+  #has_many :homeworks, :through => :homework_for_courses, :source => :bid, :dependent => :destroy
   has_many :shares, :dependent => :destroy
   # has_many :students_for_courses, :dependent => :destroy
   has_many :student, :through => :students_for_courses, :source => :user
diff --git a/test/functional/courses_controller_test.rb b/test/functional/courses_controller_test.rb
index a1551a717..7185f6303 100644
--- a/test/functional/courses_controller_test.rb
+++ b/test/functional/courses_controller_test.rb
@@ -10,6 +10,7 @@ class CoursesControllerTest < ActionController::TestCase
     Setting.default_language = 'en'
   end
 
+  # Get :index
   def test_index_by_anonymous_should_not_show_private_projects
     get :index
     assert_response :success
@@ -19,6 +20,7 @@ class CoursesControllerTest < ActionController::TestCase
     assert courses.all?(&:is_public?)
   end
 
+  # Get :new
 	# 人员添加课程的权限是不属于任何角色
 	def test_new_course_anyone_temporary
     @request.session[:user_id] = 5
@@ -29,6 +31,7 @@ class CoursesControllerTest < ActionController::TestCase
 		assert_template :new
 	end
 
+  # post :create
 	def test_create_course_with_access_control
 		@request.session[:user_id] = 5
 		Role.find_by_name("Non member").add_permission! :add_course #Non member
@@ -54,6 +57,7 @@ class CoursesControllerTest < ActionController::TestCase
 		# assert_redirected_to "courses/#{course.id}/settings"
 	end
 
+  # post :create 403
   def test_create_course_without_access_control
     @request.session[:user_id] = 5
     #Role.find_by_name("Non member").add_permission! :add_course #Non member