fix

app/views/libraries/index.html.erb

@@ -6,16 +6,14 @@
       <%= link_to '发布案例', new_library_path, class: 'white-btn edu-filter-btn-blue fr mr10 mt8', style: 'color: #4CACFF' %>
     </p>
     <div class="clearfix pl30 pr30">
-      <% if User.current.logged? %>
+      <% if User.current.try(:logged?) %>
         <ul class="fl library_nav mt20">
           <li class="<%= params[:type] == 'mine' ? '' : 'active' %>">
             <%= link_to '全部', libraries_path(search: params[:search]), remote: true %>
           </li>
-          <% if User.current.logged? %>
-            <li class="<%= params[:type] == 'mine' ? 'active' : '' %>">
-              <%= link_to '我的', libraries_path(search: params[:search], type: 'mine'), remote: true %>
-            </li>
-          <% end %>
+          <li class="<%= params[:type] == 'mine' ? 'active' : '' %>">
+            <%= link_to '我的', libraries_path(search: params[:search], type: 'mine'), remote: true %>
+          </li>
         </ul>
       <% end %>
       <div class="edu-position fr mt12">