Example custom action

rails_admin_duplicate_program.rb

require "rails_admin_duplicate_program/engine"

module RailsAdminDuplicateProgram
end

require 'rails_admin/config/actions'

module RailsAdmin
  module Config
    module Actions
      class DuplicateProgram < Base
        RailsAdmin::Config::Actions.register(self)

        register_instance_option :member do
          true
        end

        register_instance_option :included do
          []
        end

        register_instance_option :visible do
          # Could not get this method working
          # authorized? and bindings[:abstract_model].in?(included) and not bindings[:abstract_model].in?(excluded)

          bindings[:object].class.name.downcase == 'program'
        end

        # Controller action name
        # register_instance_option :action_name do
        #   custom_key.to_sym
        # end
        #
        # register_instance_option :visible do
        #   false
        # end

        register_instance_option :bulkable? do
          false
        end

        register_instance_option :http_methods do
          [:get, :post]
        end

        register_instance_option :link_icon do
          'icon-tags'
        end

        register_instance_option :controller do
         # more code here ....
        end
      end
    end
  end
end