Ruby on rails Rails\u管理员自定义-如何在自定义控制器中使用布局？

我有一个自定义控制器：

class DownloadsController < ApplicationController
layout 'layouts/rails_admin/application'

def index
end

end

class DownloadsController

我想使用默认的rails\u管理布局。但我在访问索引操作的路径时遇到此错误：

undefined local variable or method `dashboard_path' for #<#<Class:0x28a4d68>:0x28a2560>¨

未定义的局部变量或#的“dashboard_path”方法

如何使用rails_admin使用的布局

我需要使用自定义控制器、操作和视图。只需要将其包含在rails_admin中

写入

layout 'rails_admin/application'

而不是

layout 'layouts/rails_admin/application'

---

你可以用我的方法试试，但如果这不是最佳做法，请改进

class DownloadsController < ApplicationController
  include ActionView::Helpers::TextHelper
  include RailsAdmin::MainHelper
  include RailsAdmin::ApplicationHelper
  include RailsAdmin::Engine.routes.url_helpers

  layout 'layouts/rails_admin/application'

  def index
    @page_name = "custom" # just for title on template
    @is_custom = true # custom marker
  end

end

---

它确实使用rails管理员布局问题是没有加载路由..如果要向rails管理员添加内容，则必须从RailsAdmin:：ApplicationController类继承控制器。从RailsAdmin类继承后，将包含布局

- unless @is_custom.eql? true
  / this is default from rails admin, I do not need this for custom controller
  :javascript
    $('.nav.nav-list li.active').removeClass('active');
    $('.nav.nav-list li[data-model="#{@abstract_model.to_param}"]').addClass('active');

  %title= "#{@abstract_model.try(:pretty_name) || @page_name} | #{[_get_plugin_name[0] || 'Rails', _get_plugin_name[1] || 'Admin'].join(' ')}"
  .page-header
    %h1= @page_name
  - flash && flash.each do |key, value|
    .alert{class: "alert-#{key}"}
      %a.close{href: '#', :'data-dismiss' => "alert"}×
      = value
  = breadcrumb
  %ul.nav.nav-tabs
    = menu_for((@abstract_model ? (@object.try(:persisted?) ? :member : :collection) : :root), @abstract_model, @object)
    = content_for :contextual_tabs

/ just render yield for custom controller
= yield