我如何把一个阵列，JSON字符串成JSON对象（红宝石） [英] How do I convert an Array with a JSON string into a JSON object (ruby)

问题描述

我有一个数组，其内容如下：

I have an Array whose content is as follow:

[
     [0] {
                   "name" => "Mark",
                     "id" => "01",
            "description" => "User",
     },
     [1] {
                   "name" => "John",
                     "id" => "02",
            "description" => "Developer",
     }
] 

请注意：现在该数组的每一项都是一个Hash（不是字符串）。这就是说，如果我这样做把myArray的[0]的.class 我得到散的回报。

Note: right now each item of the Array is a Hash (not a string). That is to say that if I do puts myarray[0].class I get hash in return.

我希望能够创建一个对象，我可以为引用对象[I]点域。

I would like to be able to create an object that I can reference as object[i].field.

例如我想通过调用对象[0]​​。名称或获得开发获得标记 >对象[1] .DESCRIPTION 。

For example I'd like to be able to get "Mark" by calling object[0].name or get "Developer" by calling object[1].description.

这可能吗？我试图利用对我的数组.to_json方法，但它并不完全给我我需要什么。

Is this possible? I have tried to leverage the .to_json method against my array but it doesn't quite give me what I need.

感谢。

推荐答案

您可以做使用的 结构体 以满足您的需要。

You can do use Struct to meet your need.

array = [
  {
    "name" => "Mark",
    "id" => "01",
    "description" => "User",
  },
  {
    "name" => "John",
    "id" => "02",
    "description" => "Developer",
  }
] 

Customer = Struct.new(:name, :id, :description)
array_of_customers = array.map { |hash| Customer.new(*hash.values) }
array_of_customers[1].name # => "John"
array_of_customers[1].description # => "Developer"

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