如何在JSON结果中分隔键和值

Question

当我调用国家/地区列表时,我从API获取以下数组作为JSON:

{
"countries": [
    [
        "Andorra",
        "AD"
    ],
    [
        "United Arab Emirates",
        "AE"
    ],
    [
        "Afghanistan",
        "AF"
    ],
    [
        "Antigua and Barbuda",
        "AG"
    ],
    [
        "Anguilla",
        "AI"
    ],
    [
        "Albania",
        "AL"
    ],
    [
        "Armenia",
        "AM"
]]}

这是我的控制器:

def find_countries
    @countries =  CountryStateSelect.countries_collection
    render :json=>{ :countries=> @countries }
  end

我想像这样分开这个国家/地区列表数组.

{
    "countries": [
        [
            value:"Andorra",
            key: "AD"
        ],
        [
           value: "United Arab Emirates",
            key:"AE"
        ],
        [
           value: "Afghanistan",
            key:"AF"
        ],
        [
            value:"Antigua and Barbuda",
            key:"AG"
        ]
        ]}

我无法确定价值和关键.如何将上述JSON响应分开？

Answer 1

您需要将每个项目映射到一个对象

@countries =  CountryStateSelect.countries_collection.map do |name, code|
  Hash[:key, code, :value, name]
end