系统发出的加入班级\项目\竞赛消息通知,点击后自动变为已读（并优化消息代码结构）

app/controllers/contests_controller.rb

@@ -7,7 +7,8 @@ class ContestsController < ApplicationController
   helper :attachments
   helper :files
   include AvatarHelper
-
+  include ApplicationHelper
+  
   before_filter :find_contest, :only => [:show, :settings, :update, :destroy, :contest_activities, :private_or_public, :switch_role, :set_invite_code_halt, :renew,
                                             :member, :export_all_members, :feedback]
   before_filter :is_logged, :only => [:index, :new, :create]
@@ -18,8 +19,7 @@ class ContestsController < ApplicationController
 
   def show
     #更新创建课程消息状态
-    contest_request_messages = ContestMessage.where("user_id = #{User.current.id} and contest_id = #{@contest.id} and contest_message_type in ('ContestRequestDealResult', 'JoinContest', 'RemoveFromContest') and viewed = 0")
-    contest_request_messages.update_all(:viewed => true)
+    update_messsages_to_viewed("ContestMessage", @contest)
     @left_nav_type = 1
 
     respond_to do |format|

app/controllers/courses_controller.rb

@@ -456,7 +456,7 @@ class CoursesController < ApplicationController
 
   def member
     # 当前用户查看班级消息时，设置消息为已读
-    update_messsages_to_viewed("CourseMessage", "JoinCourse", @course)
+    update_messsages_to_viewed("CourseMessage", @course)
     ## 有角色参数的才是课程，没有的就是项目
     if (User.current.admin? || @course.is_public == 1 || (@course.is_public == 0 && User.current.member_of_course?(@course)))
       @render_file = 'new_member_list'

app/controllers/projects_controller.rb

@@ -72,6 +72,7 @@ class ProjectsController < ApplicationController
   include UsersHelper
   ### added by william
   include ActsAsTaggableOn::TagsHelper
+  include ApplicationHelper
 
   # 仅仅为了转换Gitlab地址
   def project_home
@@ -575,7 +576,7 @@ class ProjectsController < ApplicationController
     if params[:message_id]
       message_invite(params[:message_id], params[:key])
     end
-    update_message_status(User.current, @project)
+    update_messsages_to_viewed("ForgeMessage", @project)
     # params[:login]为邮箱邀请用户加入，主要功能：
     # 1、自动注册
     # 2、加入项目、创建角色

app/helpers/application_helper.rb

@@ -1037,14 +1037,24 @@ module ApplicationHelper
   end
 
   # 更新各类消息为已读
-  def update_messsages_to_viewed(message_type, forge_message_type, forge_message_id)
-    if( message_type == "CourseMessage")
-      query = CourseMessage.where(:course_message_type => forge_message_type,
+  def update_messsages_to_viewed(message_type, forge_message_id)
+    if(message_type == "CourseMessage")
+      query = CourseMessage.where(:course_message_type => ["JoinCourse", "RemoveFromCourse"],
                                   :user_id => User.current,
                                   :course_id => forge_message_id,
-                                  :viewed => false).first
-      query.update_attribute(:viewed, true) unless query.nil?
+                                  :viewed => false)
+    elsif(message_type == "ForgeMessage")
+      query = ForgeMessage.where(:forge_message_type => ["ProjectInvite", "JoinProject", "RemoveFromProject"],
+                                 :user_id => User.current,
+                                 :project_id => forge_message_id,
+                                 :viewed => false)
+    elsif(message_type == "ContestMessage")
+      query = ContestMessage.where(:contest_message_type => ["ContestRequestDealResult", "JoinContest", "RemoveFromContest"],
+                                   :user_id => User.current,
+                                   :contest_id => forge_message_id,
+                                   :viewed => false)
     end
+    query.update_all(:viewed => true) unless query.blank?
   end
 
   def show_attachment_tip container_id, container_type