优化rating计算速度

templates/domain_permission.html

@@ -17,7 +17,7 @@
         <tr>
           <th class="col--description">{{ _('Permissions') }}</th>
         {% for role in roles %}
-          <th class="col--p"><span data-tooltip="{{ role }}">{{ role._id }}</span></th>
+          <th class="col--p"><span data-tooltip="{{ role._id }}">{{ role._id }}</span></th>
         {% endfor %}
         </tr>
       </thead>