Ruby on rails BSON对象的未定义方法-RubyonRails

我在使用rails和mongoid时遇到了一个问题，我创建了一个在所有学校类上循环的rake任务，并找到3个最近的高级学校，将它们插入数组字段中。因此，我希望能够在视图上显示它们，但我有以下错误消息：

undefined method `title' for BSON::ObjectId('573f11e808207e00030000a1'):BSON::ObjectId

以下是TAK：

namespace :geocodeschool do

  desc "Show premium school near non-premium school and update them"

  task :schgc => :environment do

      @schools = School.all

      def premium_school_aside(school)
        radius = 50
        @schools_a = School.near(school.coordinates.reverse, radius, units: :km)
        @schools_premium = @schools_a.premium_school.limit(3)
      end

      @schools.each do |school|
        premium_school_aside(school)
        puts "// -------------- //"
        puts "AUTO-ÉCOLE : #{school.title}"
        puts "// -------------- //"
        puts "les auto-écoles premiums près de #{school.title} : #{@schools_premium.count}"
        puts "-------"

        school.update(school_premium_asides: @schools_premium.map(&:id))

        puts "-------"

    end

  end

end

以下是视图：

  <% unless @school.is_subscribed? %>
    <% @schools_premium_aside.each do |spa| %>
      <p> <%= spa.title %> </p>
    <% end %>
  <% end %>

以下是模型：

  # field for premium schools
  field :school_premium_asides, type: Array

有人知道我如何访问数据以在视图上显示3所优质学校吗

---

谢谢大家!

在你的学校模式中，你有

字段：school\u premium\u asides，类型：Array

您只在该数组中存储高级学校id

school.update(school_premium_asides: @schools_premium.map(&:id))

但在查看页面上，您正试图从该数组中获取高级学校标题，而该数组并没有存储

  <% unless @school.is_subscribed? %>
    <% @schools_premium_aside.each do |spa| %>
      <p> <%= spa.title %> </p>
    <% end %>
  <% end %>

---

所以我不能用id访问学校属性？我怎样才能将班级学校存储在这个阵列上，而不仅仅是id？你还面临任何问题吗@AntoninMrchdwith:

@schools\u premium\u aside=School.where（id:{'$in'=>@School.School\u premium\u asides}）。仅（：id，：title）

有效！非常感谢你！

  <% unless @school.is_subscribed? %>
    <% @schools_premium_aside.each do |spa| %>
      <p> <%= spa.title %> </p>
    <% end %>
  <% end %>

@schools_premium_aside = School.where(id: { '$in' => @school.school_premium_asides }).only(:id, :title)