news author解析

app/api/mobile/entities/news.rb

@@ -32,8 +32,13 @@ module Mobile
       news_expose :title
 
       expose :author,using: Mobile::Entities::User do |f, opt|
-        #n = f[:author]
-        f.author if f.respond_to?(:author)
+        obj = nil
+        if f.is_a?(::News) && f.respond_to?(:author)
+          obj = f.send(:author)
+        elsif f.is_a?(Hash) && f.key?(:author)
+          obj = f[:author]
+        end
+        obj
       end
       #作者id
       news_expose :author_id