Rails - 活动模型在序列化程序中序列化哈希数组

Question

我正在尝试创建一个嵌套的序列化哈希数组。到目前为止，我有以下内容。它不返回嵌套的序列化程序，而只返回哈希数组。

module Api
  module V1
    class ReportShowSerializer < ActiveModel::Serializer
      attributes :name, :schedule, :uuid, :reports

       has_many :reports, each_serializer: ReportBuildSerializer

      def reports
        [
          {date: '2018-10-04', test: 'a'},
          {date: '2018-10-03', test: 'b'}
        ]
      end
    end
  end
end

和其他序列化程序

module Api
  module V1
    class ReportBuildSerializer < ActiveModel::Serializer
      attributes :test, :date, :var


      def var
        "var"
      end
    end
  end
end

但它返回以下内容

{
    "data": {
        "id": "2",
        "type": "reports",
        "attributes": {
            "name": "Another test report",
            "schedule": "weekly",
            "uuid": "f10736ae-bf5c-4e43-8cd4-35eb0dc12efd",
            "reports": [
                {
                    "date": "2018-10-04",
                    "test": "ff"
                },
                {
                    "date": "2018-10-03",
                    "test": "ff"
                }
            ]
        }
    }
}

所以我认为它没有使用ReportBuildSerializer

Answer 1

当你渲染你的对象时（reports）可能在controller。你能确保你这样做：

render json: @reports, include: 'reports'

---

如果它不起作用，那么您可以使用另一种方法：

module Api
  module V1
    class ReportShowSerializer < ActiveModel::Serializer
      attributes :name, :schedule, :uuid, :reports

       has_many :reports, each_serializer: ReportBuildSerializer

      def reports
        [
          ::Api::V1:: ReportBuildSerializer.new({date: '2018-10-04', test: 'a'}).attributes,
          ::Api::V1:: ReportBuildSerializer.new({date: '2018-10-03', test: 'b'}).attributes
        ]
      end
    end
  end
end