ActiveModelSerializer 只显示关联的 id

Question

我正在尝试在我的 API 中使用 ActiveModelSerializer。除了 BusinessCategory 关系之外，一切似乎都有效。它只是显示了那个 id。我希望它显示所有属性。我不确定它是否使用了序列化程序，因为当我删除关系时它仍然会出现。

PerksSerializer

class PerksSerializer < ActiveModel::Serializer
  attributes :id, :status, :scope, :business_name, :business_description, :business_address_street,
    :business_address_state, :business_address_city, :business_address_postal_code,
    :business_website, :latitude, :longitude, :headline, :description, :start_date, :end_date,
    :redemption_instructions, :cashier_instructions, :redemption_button_text, :claim_type,
    :business_manager_approved_by, :created_at

  belongs_to :primary_business_category

  belongs_to :secondary_business_category
end

PerksController

  def index
    data = property.available_perks
    render json: data
  end

BusinessCategorySerializer

class BusinessCategorySerializer < ActiveModel::Serializer
  attributes :name, :description
end

Answer 1

您可以执行相同的代码，例如：

class PerksSerializer < ActiveModel::Serializer
  attributes :id, :status, :scope, :business_name, :business_description, :business_address_street,
    :business_address_state, :business_address_city, :business_address_postal_code,
    :business_website, :latitude, :longitude, :headline, :description, :start_date, :end_date,
    :redemption_instructions, :cashier_instructions, :redemption_button_text, :claim_type,
    :business_manager_approved_by, :created_at, :primary_business_category,:secondary_business_category


   def primary_business_category
     BusinessCategorySerializer.new(object.primary_business_category)
   end

   def secondary_business_category
     BusinessCategorySerializer.new(object.secondary_business_category)
   end
end

或

belongs_to :primary_business_category, serializer: BusinessCategorySerializer

belongs_to :secondary_business_category, serializer: BusinessCategorySerializer

检查你的 PerksSerializer 是否被调用，如果没有：

 def index
   data = property.available_perks
   render json: data, each_serializer: PerksSerializer
 end