activeadmin:为嵌套资源添加删除

Question

我有一个为许多数据中心组成的基础结构对象.在apps/admin/infrastructures.rb中,我有以下代码:

form do |f|
  f.inputs "Infrastructure details" do
    f.input :name

    f.has_many :datacenters do |datacenter_form|
      datacenter_form.input :name        
    end
  end
  f.buttons
end

我可以添加没有问题的数据中心,但我不知道如何从基础架构表单中删除它.

Answer 1

2017年9月更新:

Rails 5.1.4,ActiveAdmin 1.0.0

追加:id并_destroy在permit_params与从模型如其他属性沿着:name你的情况.然后提供:allow_destroy选项f.has_many.其他要求保持不变; 像加allow_destroy: true在accepts_nested_attributes_for.

最后看:

ActiveAdmin.register Infrastructure do
  permit_params :name, datacenters_attributes: [:id, :_destroy, :name]

  form do |f|
    f.inputs "Infrastructure details" do
      f.input :name

      f.has_many :datacenters, heading: false,
                               allow_destroy: true,
                               new_record: false do |datacenter_form|
        datacenter_form.input :name        
      end
    end
    f.buttons
  end
end

ActiveAdmin参考

这对我有用:

     i.input :_destroy, as: :boolean

并在模型中记得添加:allow_destroy:

     accepts_nested_attributes_for :images, allow_destroy: true

Answer 2

解决了添加以下行:

datacenter_form.input :_destroy, :as => :boolean, :required => false, :label => 'Remove'

代码如下:

form do |f|
  f.inputs "Infrastructure details" do
    f.input :name

    f.has_many :datacenters do |datacenter_form|
      datacenter_form.input :name
      datacenter_form.input :_destroy, :as => :boolean, :required => false, :label => 'Remove'
    end
  end
  f.buttons
end

Answer 3

如果不能破坏嵌套的对象。您需要将：_destroy放入您的app / admin / object.rb permit_params中

permit_params :id,:name, :cod, :_destroy