Question

我需要使用active_model_serializers gem创建一个类似的结构

let wishlist = ["444 Winter St, Indoor Pool",
                "275 Meadowbrook Rd, Outdoor Pool",
                "Someplace in Wellesley, Both Infoor and Outdoor Pools",
                "a place in Natick, Either pools"]

类别是指PORO病毒：

{
  "categories": [
    {
      "code": "code",
      "name": "name"
    },
    {
      "code": "code",
      "name": "name"
    },
    {
      "code": "code",
      "name": "name"
    },
    {
      "code": "code",
      "name": "name"
    }
  ]
}

我已经对该序列化器进行了编码，以尝试创建该哈希。它奏效了，但是结果却出乎我的意料。

module Api
  module Bitsky
    class MarketStructure
      include Virtus.model

      attribute :department_name, String
      attribute :department_code, Integer
      attribute :department_value, String
      attribute :sector_name, String
      attribute :sector_code, Integer
      attribute :sector_value, String
      attribute :family_name, String
      attribute :family_code, Integer
      attribute :family_value, String
      attribute :sub_family_name, String
      attribute :sub_family_code, Integer
      attribute :sub_family_value, String
    end
  end
end

结果

module Api
  module Bitsky
    class MarketStructure< ActiveModel::Serializer
      attributes :categories

     def categories
       *** some operation ***
     end
    end
  end
end

我如何编写一个序列化程序，该序列化程序仅返回没有此键“类别”的哈希数组？

Answer 1

您应该做这样的事情

@categories.as_json(root: false)

或

render json: @categories, root: false

如何创建一个不带键返回哈希数组的序列化器？

1 个答案: