lastname为空时也可以加,可以省掉查询extensions的语句

app/models/user.rb

@@ -399,16 +399,7 @@ class User < Principal
   end
   
   def show_name
-    name = ""
+    name = lastname + firstname
-    unless self.user_extensions.nil?
-      if self.user_extensions.identity == 2
-        name = firstname
-      else
-        name = lastname+firstname
-      end
-    else
-      name = lastname+firstname
-    end
     name.empty? || name.nil? ? login : name
   end
   ## end