强制Active Model序列化器返回关联

问题描述

我有一个，其具有以下内容：

I have a Active Model Serializer that has the following:

class API::DashboardSerializer < ActiveModel::Serializer
    attributes :id, :name, :special

    def special
        x = object.check_ins.first
        prev = x.prev_ci_with_weigh_in
    end
end

其中，特殊返回类 CheckIn 的记录，我希望该记录使用 CheckInSerailizer 。如何强制它在特殊中使用 CheckInSerializer ？

where special returns a record of class CheckIn and I'd like it to use the CheckInSerailizer for that record. How can I force it to use the CheckInSerializer in special?

推荐答案

从属性中删除​​特殊，然后尝试 has_one 或属于，在，例如：

Remove special from attributes and then try has_one or belongs_to, described in this Guide, like this:

class API::DashboardSerializer < ActiveModel::Serializer
  attributes :id, :name

  has_one :special, serializer: CheckInSerializer

  def special
    # ...

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