Rails序列化程序不返回有效的JSON(键未在引号中返回)

时间:2016-07-02 13:05:34

标签: ruby-on-rails json active-model-serializers

在仅限API的应用中使用Rails Serializer时出现问题。该应用程序返回一个javascript对象,其中的键没有用双引号括起来。值得注意的是,源API返回的javascript对象的键没有被引号括起来。

我发现了两个似乎相关的帖子。第二个答案here指出,如果您收到一个不是字符串的对象,您就不需要解析它,所以我猜这是什么' s在这里,但我无法在我的模型中找出代替JSON.parse response的内容。另一篇相关文章here;正如那里所建议的那样,我已经尝试了return JSON(response)而不是JSON.parse response,这也没有产生有效的JSON。我看到我可以删除Controller中的each_serializer: KoboApiSerializer行,并尝试使用模型中的`return JSON(response)行。

对于我应该如何产生有效的JSON结果的任何建议将不胜感激。

Model,Controller,返回JSON,以及从下面的API返回的源JSON。我还通过控制器中的线路将puts和我的终端包含在我的终端中。提前致谢。

型号:

class KoboApi < ActiveRecord::Base
    require 'rest_client'
    USERNAME = ENV['KOBO_API_USER']
    PASSWORD = ENV['KOBO_API_PWD']
    SURVEY = ENV['KOBO_API_SURVEY']
    API_BASE_URL = ENV['API_BASE_URL']
    def self.get_api_info
        uri = "#{API_BASE_URL}/data/#{SURVEY}?format=json"
        rest_resource = RestClient::Resource.new(uri, USERNAME, PASSWORD)
        response = rest_resource.get
        JSON.parse response
    end
end

控制器:

class KoboDataController < ApplicationController
    def index
        @kobo_info = KoboApi.get_api_info
        puts "@kobo_info: #{@kobo_info.inspect}" #values for this returned below.  this shows keys surround with quotes.
        @kobo_info.each do |kobo_info|
           #some records have NULL for the month_and_year date field.  this if then statement 
           date = if kobo_info['month_and_year']
                Date.parse(kobo_info['month_and_year'])
           else
                nil
           end
            KoboApi.where(lemurs_quantity: kobo_info['lemurs_quantity'], month_and_year: date, lemur_category: kobo_info['lemur_category'], location_admin1: kobo_info['location_admin1'], location_admin2: kobo_info['location_admin2']).first_or_create
        end
    render(
      json.KoboApi.all,
      each_serializer: KoboApiSerializer
    )
    end
end

从我的Rails API应用程序返回的对象示例

有一个序列化器(这里是&#34; kobo_data&#34;),因此对象在其下分组。我包含了返回的示例对象 - 请注意,此处的对象不一定与我从源API或控制台发布的对象相匹配 - 包括它以显示密钥未包含在引号中。

{
    kobo_data: [
        {
            lemurs_quantity: 20,
            month_and_year: "2016-03-01",
            lemur_category: "indri",
            location_admin1: "toliara",
            location_admin2: "androy"
        }
    ]
}

来自API的源json示例:

源API返回的一个对象(众多对象)。此处的值与上方或下方的值不匹配 - 仅包括显示密钥未用双引号括起来。

[
    {
        location_admin1: "fianarantsoa",
        location_admin2: "atsimo-atsinanana",
        lemurs_quantity: "5",
        month_and_year: "2016-01-01",
        lemur_category: "brown_lemur",
    },
]

将它放到终端....

puts通过控制器中的行显示到我的终端,显示它似乎是一个有效的JSON对象,带有引号中的键。如上所述,此处的值与源数据中的值不匹配 - 这只是为了显示此处返回的值包含在引号中。

Processing by KoboDataController#index as HTML
@kobo_info: [{"location_admin1"=>"fianarantsoa", "location_admin2"=>"atsimo-atsinanana","lemurs_quantity"=>"5", "month_and_year"=>"2016-01-01","lemur_category"=>"brown_lemur"}

KoboApi Load (0.3ms)  SELECT  "kobo_apis".* FROM "kobo_apis" WHERE "kobo_apis"."lemurs_quantity" = $1 AND "kobo_apis"."month_and_year" = $2 AND "kobo_apis"."lemur_category" = $3 AND "kobo_apis"."location_admin1" = $4 AND "kobo_apis"."location_admin2" = $5  ORDER BY "kobo_apis"."id" ASC LIMIT 1  [["lemurs_quantity", 5], ["month_and_year", "2016-01-01"], ["lemur_category", "brown_lemur"], ["location_admin1", "fianarantsoa"], ["location_admin2", "atsimo-atsinanana"]]

1 个答案:

答案 0 :(得分:0)

将此归结为缺乏经验。一切都运行正常 - 事实证明我正在查看浏览器显示的响应,而不是查看源。详情如下。

在浏览器中显示

{
    kobo_data: [
        {
            lemurs_quantity: 1,
            month_and_year: "2013-06-01",
            lemur_category: "no_response",
            location_admin1: "antsiranana",
            location_admin2: "diana"
        }, {
            lemurs_quantity: 1,
            month_and_year: "2013-06-01",
            lemur_category: "no_response",
            location_admin1: "antsiranana",
            location_admin2: "diana"
        },
    ]
}

<强> VS。来源

{
    "kobo_data": [
        {
            "lemurs_quantity": 1,
            "month_and_year": "2013-06-01",
            "lemur_category": "no_response",
            "location_admin1": "antsiranana",
            "location_admin2": "diana"
        }, {
            "lemurs_quantity": 1,
            "month_and_year": "2013-06-01",
            "lemur_category": "no_response",
            "location_admin1": "antsiranana",
            "location_admin2": "diana"
        },
    ]
}