activeadmin：为嵌套资源添加删除 [英] activeadmin: adding delete for a nested resource

问题描述

我有一个用于许多数据中心的基础结构对象。在apps / admin / infrastructures.rb中，我有以下代码：

I have a infrastructure object composed for many datacenters. In the apps/admin/infrastructures.rb I have the following code:

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

我可以毫无问题地添加数据中心，但是我不知道如何从基础结构表单中删除它。

I can add datacenters with no problems but I don't know how I can delete it from infrastructure form.

推荐答案

解决了以下问题：

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

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