如果用户没有登陆，不能在组织页面中，增加项目或课程。

app/views/organizations/_org_left_subfield_list.html.erb

@@ -3,7 +3,9 @@
 </div>
 <div class="homepageLeftMenuBlock">
   <a href="javascript:void(0);" class="homepageMenuText" onclick="$('#homepageLeftMenuProjects').slideToggle();">项目</a>
-  <%=link_to "", join_project_menu_organization_path(organization),:remote => true, :method => "post", :class => "homepageMenuSetting fr", :title => "关联项目"%>
+  <% if User.current.logged? %>
+    <%=link_to "", join_project_menu_organization_path(organization),:remote => true, :method => "post", :class => "homepageMenuSetting fr", :title => "关联项目"%>
+  <% end %>
 </div>
 <div class="homepageLeftMenuCourses" id="homepageLeftMenuProjects" style="display:<%= organization.projects.count == 0?'none':'' %>">
   <ul >
@@ -12,7 +14,9 @@
 </div>
 <div class="homepageLeftMenuBlock">
   <a href="javascript:void(0);" class="homepageMenuText" onclick="$('#homepageLeftMenuCourses').slideToggle();">课程</a>
-  <%=link_to "", join_course_menu_organization_path(organization),:remote => true, :method => "post", :class => "homepageMenuSetting fr", :title => "关联课程"%>
+  <% if User.current.logged? %>
+    <%=link_to "", join_course_menu_organization_path(organization),:remote => true, :method => "post", :class => "homepageMenuSetting fr", :title => "关联课程"%>
+  <% end %>
 </div>
 <div class="homepageLeftMenuCourses" id="homepageLeftMenuCourses" style="display:<%= organization.courses.count == 0 ?'none':'' %>">
   <ul >