外键关系中的 Active Admin No Method 错误

问题描述

我是第一次使用 Active Admin 制作笔记应用程序,但我遇到了一个让我感到困惑的错误,因为关系存在,就我在架构中看到的而言,我的迁移存在。我目前有 2 个模型 Note belongs_to ContentContent has_many :notes 。我正在尝试为 Contents 自定义我的节目,因此它会显示不同的内容,如下所示,但我不断收到 notes 的无方法错误,此关系存在并且应该可以工作,因为它是两个表之间的外键?>

class Note < ApplicationRecord
  belongs_to :content
end
class Content < ApplicationRecord
    has_many :notes
end
ActiveAdmin.register Content do
    permit_params :name,note_ids: []

show title: 'Test' do
    h3 'You have ' + pluralize(content.notes.count,'note') + ' referencing ' + `#{content.name}`
end
ActiveRecord::Schema.define(version: 2021_05_06_140826) do

  # These are extensions that must be enabled in order to support this database
  enable_extension "plpgsql"

  create_table "active_admin_comments",force: :cascade do |t|
    t.string "namespace"
    t.text "body"
    t.string "resource_type"
    t.bigint "resource_id"
    t.string "author_type"
    t.bigint "author_id"
    t.datetime "created_at",precision: 6,null: false
    t.datetime "updated_at",null: false
    t.index ["author_type","author_id"],name: "index_active_admin_comments_on_author_type_and_author_id"
    t.index ["namespace"],name: "index_active_admin_comments_on_namespace"
    t.index ["resource_type","resource_id"],name: "index_active_admin_comments_on_resource_type_and_resource_id"
  end

  create_table "admin_users",force: :cascade do |t|
    t.string "email",default: "",null: false
    t.string "encrypted_password",null: false
    t.string "reset_password_token"
    t.datetime "reset_password_sent_at"
    t.datetime "remember_created_at"
    t.datetime "created_at",null: false
    t.index ["email"],name: "index_admin_users_on_email",unique: true
    t.index ["reset_password_token"],name: "index_admin_users_on_reset_password_token",unique: true
  end

  create_table "contents",force: :cascade do |t|
    t.string "name"
    t.datetime "created_at",null: false
  end

  create_table "notes",force: :cascade do |t|
    t.string "title"
    t.text "body"
    t.bigint "content_id",null: false
    t.datetime "created_at",null: false
    t.index ["content_id"],name: "index_notes_on_content_id"
  end

  add_foreign_key "notes","contents"
end

No Method Error

解决方法

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