我了解您的JSON可能如下所示:
"{"features":{"additional-options":true},"values":{"lo-value":34,"hi-value":554},"persons":[{"name":"john","member":true,"current":false,"sponsor":"pete","profile":"","credits":["04"],"linked":["philip","guy"],"maptools":["crossfit","soccer","running"]},{"name":"mary","member":true,"current":false,"sponsor":"judy","profile":"","credits":["all"],"activities":["swimming","cycling","running"]}],"data_map":[1122,3234]}"我建议使用OpenStruct来组织数据:
your_struct_name = JSON.parse(yourJson, object_class: OpenStruct)
然后,您得到了所有想要的东西。对于您显示的操作:
#change_key(hash, "features.additional-options", false)your_struct_name.features['additional-options'] = false #this one above you set in this hash-like manner because of the '-' in the middle of the key. Otherwise you could just do your_struct_name.features.additional_options = false#del_from_array(hash, "persons.name=mary.activities", "cycling")your_struct_name.persons.last.activities.delete('swimming')# or selecting by name:your_struct_name.persons.select {|person| person.name == 'mary' }.first.activities.delete('swimming')#add_to_array(hash, "persons.name=mary.activities", "hockey")your_struct_name.persons.last.activities << 'hockey'#del_key(hash, "data_map")your_struct_name.delete_field('data_map')#del_key(hash, persons.name=john.profile)...#del_key(hash, persons.name=mary.credits)...然后,进行更改后,可以使用:
your_struct_name.to_h.to_json
您还可以使用该方法
as_json来获得与问题所显示的结构非常相似的结构:
your_struct_name.as_json
OpenStruct处理 结构变化的
数据非常好。如果您具有可以“建模”的数据,可以调用的名称,可以预测的某些属性,甚至可以用于此数据的方法,那么建议您创建一个Class来描述此数据,其属性和属性(甚至可以继承自OpenStruct)。然后在这个Class域内工作,创建一个抽象层。这样,您的代码将变得更加健壮和易读。不要忘记创建自动测试!它为您节省了大量时间。
组织和抽象数据的方式,特别是命名实体的方式,对代码质量有很大影响。
有关更多信息,请参见:Object和ActiveData。



