Ruby on rails 在activeadmin中更新关系

我有两个模型

fb_page.rb fb_页面_template.rb 主动管理员

ActiveAdmin.register FbPage do
  form title: 'Facebook page form' do |f|
    f.has_many :fb_page_template, new_record: false, allow_destroy: false do |k|
        k.input :subscribed
    end
  end
end

现在，当我尝试更新表单时，它也尝试删除订阅和fb_页面_模板

---

我只想更新

subscribed

的值，该值位于

fb\u page\u模板中

我认为您缺少以下几点：

• 您需要在您的

  fb\u页面\u模板中允许
  accepts\u嵌套的\u属性\u用于：订阅，：allow\u destroy=>false
  。rb

class FbPageTemplate < ApplicationRecord
  belongs_to :fb_page
  has_many :subscriptions
  accepts_nested_attributes_for :subscriptions, :allow_destroy => false
end

• 您还需要允许ActiveAdmin中的所有嵌套属性

• 您需要嵌套表单

这是我在我的

fb_页面.rb

中针对ActiveAdmin的内容：

ActiveAdmin.register FbPage do
  permit_params :attribute_name_for_fb_page, 
                fb_page_template_attributes: [
                  :id, :fb_page_id, :attribute_name_for_fb_page_template,
                  subscriptions_attributes: [
                    :subscribed,
                    :fb_page_template_id
                  ]
                ]

  form title: "Facebook page form" do |f|
    f.inputs do 
      f.input :attribute_name_for_fb_page 

      f.has_many :fb_page_template, allow_destroy: false do |t|
        t.input :attribute_name_for_fb_page_template

        t.has_many :subscriptions do |s|  
          s.input :subscribed, as: :boolean
        end
      end
    end

    f.actions
  end
end

这就是我在

fb\u页面\u模板.rb中的内容

class FbPageTemplate < ApplicationRecord
  belongs_to :fb_page
  has_many :subscriptions
  accepts_nested_attributes_for :subscriptions, :allow_destroy => false
end

class FbPageTemplatefalse
结束

希望这对你有用

class FbPageTemplate < ApplicationRecord
  belongs_to :fb_page
  has_many :subscriptions
  accepts_nested_attributes_for :subscriptions, :allow_destroy => false
end