如何根据内部哈希中的键值最有效地按顺序遍历哈希哈希？

Question

我有一个网站API返回的哈希值的JSON哈希值，我想根据内部哈希值中特定键的值来解析和显示该哈希值。

我可以想到可以实现此目的的解决方案，但是它们会花费很多行代码，而且效率似乎不高。 考虑到约定优于配置，肯定有一种方法可以在Rails中进行本地化。 我已经在Google上搜索了一下，但没有发现任何涵盖此问题的信息。

来自API的示例响应：

[{"banner":"01197271","birthday":"1991-01-11","committee_id":1,"created_at":"2012-08-08T01:56:02-05:00","email":"me@example.com","first_name":"Dan","graduation_date":"May 2013","hometown":"San Antonio","hours_enrolled":15,"id":2,"image":{"url":null,"thumb":{"url":null},"large":{"url":null}},"invitation_accepted_at":null,"invitation_limit":null,"invitation_sent_at":null,"invitation_token":null,"invited_by_id":null,"invited_by_type":null,"last_name":"Tester","local_apt":"","local_city":"San Antonio","local_state":"Texas","local_street":"One UTSA Circle","local_zip":"78249","major":"Computer Science","permanent_apt":"","permanent_city":"","permanent_state":"","permanent_street":"One UTSA Circle","permanent_zip":"","phone":"5558813284","same_address":true,"tour_trained":false,"updated_at":"2012-08-17T03:35:26-05:00","utsa_id":"uoi431"},
{"banner":"","birthday":"1990-10-25","committee_id":null,"created_at":"2012-08-03T16:19:23-05:00","email":"you@example.com","first_name":"Test","graduation_date":null,"hometown":null,"hours_enrolled":null,"id":1,"image":{"url":null,"thumb":{"url":null},"large":{"url":null}},"invitation_accepted_at":null,"invitation_limit":null,"invitation_sent_at":null,"invitation_token":null,"invited_by_id":null,"invited_by_type":null,"last_name":"User","local_apt":"","local_city":"","local_state":"","local_street":"","local_zip":"","major":null,"permanent_apt":"","permanent_city":"","permanent_state":"","permanent_street":"","permanent_zip":"","phone":"","same_address":false,"tour_trained":false,"updated_at":"2012-08-15T10:05:54-05:00","utsa_id":""}]

可能的解决方案是遍历每个内部哈希，确定相关键值的值，然后根据键值与已测试哈希值相比的位置存储。 完成后，返回。

Answer 1

好吧，如果您有一些对象被设置为可以解析此信息，则这些对象可以根据哈希参数建立自己。 所以你可以做这样的事情

object = MyObject.create(your_hash_parameters)

其中your_hash_parameters是示例中显示的参数。

我不确定如果参数多于您的对象知道该如何处理（如果它仍然可以自行构建），将会发生什么。 在这种情况下，可以使用delete_if方法排除不需要的属性。

还有一点需要注意的是，如果这不是您想要保存到数据库中的内容，并且仅用于显示临时信息。 我将使用attr_accessors设置一个模型，该模型代表您正在显示的属性。

Answer 2

如评论所述，我将创建一个ActiveResource对象并向其中添加相关方法。