修改issue指派给我名称显示问题

app/views/issues/_project_issue.html.erb

@@ -42,8 +42,8 @@
         </li>
         <li class="c_grey">
         <% unless activity.assigned_to_id.nil? %>
-            <% if activity.try(:assigned_to).try(:realname) == ' ' %>
+            <% if activity.try(:assigned_to).try(:realname).empty? %>
-                <%= link_to activity.try(:assigned_to), user_path(activity.assigned_to_id), :class => "c_grey" %>
+                <%= link_to activity.assigned_to, user_path(activity.assigned_to_id), :class => "c_grey" %>
             <% else %>
                 <%= link_to activity.try(:assigned_to).try(:realname), user_path(activity.assigned_to_id), :class => "c_grey" %>
             <% end %>