ruby​​ on rails中activemodel序列化程序的可选属性

Question

我有以下两个Serializer类。在索引控制器中，我想跳过加载project_products，只显示/编辑我想要获取project_product的详细信息的方法。

class ProjectSerializer < ActiveModel::Serializer 
     attributes :id, :name, :category, :project_category_id, :status, :description 
     has_many :project_products 
    end 

class ProjectProductSerializer < ActiveModel::Serializer 
    attributes :id, :name, :quantity 
end 

控制器：

def index 
    respond_with @projects 
    end 

def load_projects 
    @projects = current_organization.projects.includes(:project_category) 
    end 

Answer 1

尝试重写关联方法

class ProjectSerializer < ActiveModel::Serializer 
     attributes :id, :name, :category, :project_category_id, :status, :description 
     has_many :project_products 

    def project_products 
     if current_page?(edit_path_url) 
      object.comments 
     else 
      object.comments = nil 
    end 

end 

Answer 2

创建串行实例时，您可以使用 “除” 参数：

respond_with @projects, except: project_products 

（当索引控制器动作时）