activeadmin: adding delete for a nested resource

Question

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 \"Infrastruc         


        

Answer 1

I hope this will be helpful (I've changed my code to suit your example, so I hope there are no typos here):

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

      f.has_many :datacenters do |datacenter_form|
        datacenter_form.inputs :datacenters do
          datacenter_form.input :name
        end
        datacenter_form.buttons do
          link_to "Delete", admin_datacenter_path(datacenter_form.object), method: "delete", class: "button" unless datacenter_form.object.new_record?
        end
      end
    end
    f.buttons
  end

and the controller method should be defined in datacenters.rb

controller do
    def destroy
      @datacenter = Datacenter.find(params[:id])
      @datacenter.destroy
      redirect_to edit_admin_retailer_path(@datacenter.infrastructure)
    end
  end