用户最新列表单位完成，修改了点击最后两页报错的问题

app/views/admin/latest_login_users.html.erb

@@ -92,13 +92,15 @@
                 <% end%>
               </td>
               <td align="center">
-                <% if user.user_extensions.identity.to_i == 0 %>
+                <% unless user.user_extensions.nil? %>
+                    <% if user.user_extensions.identity.to_i == 0 %>
                     <!--优先取school中校名，如果校名不存在就取occupation-->
-                    <% occupation = user.user_extensions.school_id.nil? ? "" : (School.where("id =?", user.user_extensions.school_id)).first.try(:name) %>
-                    <%= occupation.blank? ? user.user_extensions.occupation : occupation %>
-                 <% else %>
-                    <%= user.user_extensions.occupation %>
-                 <% end %>
+                        <% occupation = user.user_extensions.school_id.nil? ? "" : (School.where("id =?", user.user_extensions.school_id)).first.try(:name) %>
+                        <%= occupation.blank? ? user.user_extensions.occupation : occupation %>
+                    <% else %>
+                        <%= user.user_extensions.occupation %>
+                    <% end %>
+                <% end %>
               </td>
             </tr>
         <% end %>