游客身份，隐藏讨论区二级栏目新建帖子的入口

app/views/layouts/_board_children_list.html.erb

@@ -4,7 +4,9 @@
           <li id="board_children_<%=board.id %>">
             <% count = board ? (board.topics.count + Message.where("board_id =? and parent_id is not ?", board.id, nil).count) : 0 %>
             <a href="<%=course_boards_path(@course, :board_id =>board.id) %>"><font class="hidden dis" style="max-width: 120px;"><%=board.name %></font><span style="vertical-align: top;"><%=count %></span></a>
+            <% if User.current.logged? %>
               <%= link_to( "",course_boards_path(@course, :board_id =>board.id, :flag => true, :is_new => 1), :class => 'sy_class_add', :title =>"#{l(:label_message_new)}") %>
+            <% end %>
           </li>
       <% end %>
     </ul>

app/views/layouts/_group_children_list.html.erb

@@ -4,7 +4,9 @@
           <li id="course_group_<%=group.id %>">
             <% count = group.members.count %>
             <a href="<%= group_member_course_path(course, :group_id => group.id) %>"><font class="hidden dis" style="max-width: 120px;"><%=group.name %></font><span style="vertical-align: top;"><%=count %></span></a>
+            <% if is_teacher %>
               <%= link_to '', search_not_group_member_course_path(@course,:group_id => group.id),:remote => true, :class => "sy_class_add", :title => "添加成员" %>
+            <% end %>
           </li>
       <% end %>
     </ul>

app/views/layouts/base_courses.html.erb

@@ -121,7 +121,7 @@
                 <!--<a href="javascript:void(0);" class="sy_class_add"></a>-->
               </li>
               <div id="group_children_list">
-                <%= render :partial => 'layouts/group_children_list', :locals => {:course => @course} %>
+                <%= render :partial => 'layouts/group_children_list', :locals => {:course => @course, :is_teacher => is_teacher} %>
               </div>
           <% end %>
           <% statistics_count = 0 %>