Ruby on rails 如何将带有数组的json解析为带有集合的presenter？

我通过电子邮件从外部服务JSON收到当前用户的培训信息

{
    “id:”5357c5d17303b5357c5d173078”,
    “email”:”some@email.com”,
    ”trainings”:[
        {
            “training_id“: “5357c4e5d61f15357c4e5d622f“,
            “name”: ”training 1”,
            “state”: “started”
        },
        {
            “training_id“: “5357af490fcda5357af490fd15“,
            “name”: ”training 2”,
            “state”: “finished”
        }
    ]
}

我想解析这个JSON并将其显示在我的页面上。所以我想到了主持人

class EducationPresenter
  attr_reader :email, :trainings

  def initialize json
    @email = json['email']
    @trainings = json['trainings']
  end
end

及

所以现在我可以在我的观点中使用它：

Email: <%= @presenter.email %>
<% @presenter.trainings.each do |training| %>
Training: <%= training['training_id'] %>
<% end %>

@presenter.training.each {|t| t.state }

演讲者是上帝处理这个问题的方式吗？

使用：

阅读以理解这一点，同时也要理解这一点

现在创建对象

 @education_presenter = EducationPresenter.new(json_string)

和视图：

Email: <%= @education_presenter.presenter.email %>
<% @education_presenter.presenter.trainings.each do |training| %>
Training: <%= training['training_id'] %>
<% end %>

Email: <%= @education_presenter.presenter.email %>
<% @education_presenter.presenter.trainings.each do |training| %>
Training: <%= training['training_id'] %>
<% end %>