Ruby on rails 检索数组中的嵌套XML数据

我是rails新手，有一个rails应用程序调用api并将XML数组数据插入数据库。我在访问XML数据的嵌套部分时遇到了一个问题，它说{Category=}{CategoryDescription=comice}这里是数组。我不知道如何在数据库中存储Category Description=喜剧

{"Array"=>{"Artist"=>[{"Category"={"CategoryDescription"=>"COMEDY", "ChildCategoryID"=>"xx"}, "Description"=>"Adam Sandler", "ID"=>"14",}

下面是我如何从数组中访问和创建描述和ID，但无法确定如何检索嵌套的类别响应

doc = response.parsed_response
doc["Array"]["Artist"].each do |category|

performer = Performer.create(  PerformerID:  category['ID'],
                         PerformerName: category['Description'],

doc2["Array"]["Artist"]["Category"].each do |category|

performerCategory = Performer.create(EventID: category['ChildCategoryDescription'],)

我尝试这样做是为了在XML响应中访问和存储嵌套的[Category]

doc = response.parsed_response
doc["Array"]["Artist"].each do |category|

performer = Performer.create(  PerformerID:  category['ID'],
                         PerformerName: category['Description'],

doc2["Array"]["Artist"]["Category"].each do |category|

performerCategory = Performer.create(EventID: category['ChildCategoryDescription'],)

---

它说它不能将字符串转换为整数。什么都行，谢谢

如果需要将

category['ChildCategoryDescription']

转换为整数，请尝试将

转换为如下所示：

performerCategory = Performer.create(EventID: category['ChildCategoryDescription'].to_i,)