没有登录平台或者没有加入竞赛的用户在点击作品提交时，请给出相应的提示

app/helpers/application_helper.rb

@@ -3123,6 +3123,7 @@ module ApplicationHelper
   #根据传入作业确定显示为编辑作品还是新建作品,或者显示作品数量
   def user_for_homework_common homework,is_teacher,work
     count = homework.student_works.has_committed.count
+    if User.current.logged?
       if User.current.member_of_course?(homework.course)
         if is_teacher #老师显示作品数量
           link_to "作品(#{count})", student_work_index_url_in_org(homework.id, 2), :class => "c_blue"
@@ -3165,13 +3166,17 @@ module ApplicationHelper
           end
         end
       else
-      link_to "作品(#{count})",student_work_index_url_in_org(homework.id, 2),:class => "c_blue"
+        link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "notice_sure_box('您不是班级成员，不能提交作品<br/>请先从老师处获取邀请码后加入班级，再提交作品')"
+      end
+    else
+      link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "login_notice_box('#{signin_url_without_domain}');"
     end
   end
 
   #根据传入作业确定显示为编辑作品还是新建作品,或者显示作品数量
   def user_for_contest_work homework,is_contestant,work
     count = homework.contestant_works.has_committed.count
+    if User.current.logged?
       if User.current.member_of_contest?(homework.contest)
         if !is_contestant #老师显示作品数量
           link_to "作品(#{count})", contestant_works_path(:work =>homework.id, :tab => 2), :class => "c_blue"
@@ -3193,7 +3198,10 @@ module ApplicationHelper
           end
         end
       else
-      link_to "作品(#{count})",contestant_works_path(:work =>homework.id, :tab => 2),:class => "c_blue"
+        link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "notice_sure_box('您不是参赛者，不能提交作品<br/>请加入竞赛，待审批通过后再提交作品')"
+      end
+    else
+      link_to "作品(#{count})", "javascript:void(0)", :class => "c_blue", :onclick => "login_notice_box('#{signin_url_without_domain}');"
     end
   end
 

public/javascripts/application.js

@@ -6,6 +6,14 @@
 /* Redmine - project management software
    Copyright (C) 2006-2013  Jean-Philippe Lang */
 
+//未登录弹框提示
+function login_notice_box(url){
+    var htmlvalue = '<div id="muban_popup_box" style="width:300px;"><div class="muban_popup_top"><h3 class="fl">提示</h3><a href="'+ url +'" class="muban_icons_close fr"></a></div>'+
+        '<div class="clear mt15"><p class="text_c f14">您还没有登录，不能提交作品<br/>请登录</p><div class="cl"></div>'+
+        '<a href="'+ url +'" class="fr sy_btn_blue mt10 mr10" style="margin-right: 124px;">知道了</a></div></div>';
+    pop_box_new(htmlvalue, 300, 170);
+}
+
 //动态高度控制
 function description_show_hide(id){
     showNormalImage('activity_description_'+id);
@@ -1765,6 +1773,14 @@ function delete_confirm_box_3(url, str){
     pop_box_new(htmlvalue, 300, 140);
 }
 
+//提示框：只有一个按钮，点击关闭弹框
+function notice_sure_box(str){
+    var htmlvalue = '<div id="muban_popup_box" style="width:350px;"><div class="muban_popup_top"><h3 class="fl">提示</h3><a href="javascript:void(0);" class="muban_icons_close fr"></a></div>'+
+        '<div class="clear mt15"><p class="text_c f14">' + str + '</p><div class="cl"></div>'+
+        '<a href="javascript:void(0);" class="fr sy_btn_blue mt10 mr10" onclick="hideModal();" style="margin-right: 124px;">知道了</a></div></div>';
+    pop_box_new(htmlvalue, 350, 140);
+}
+
 //提示框：只有一个确定按钮，点击关闭弹框
 function notice_box(str){
     var htmlvalue = '<div id="muban_popup_box" style="width:300px;"><div class="muban_popup_top"><h3 class="fl">提示</h3><a href="javascript:void(0);" class="muban_icons_close fr"></a></div>'+