我应该如何在我的应用程序控制器中使用Draper ?

My questions refers to the following development stack:

我的问题涉及以下开发堆栈:

Rails 3.2.1
Rails 3.2.1之上
Draper 0.14
德雷伯0.14
Ancestry 1.2.5
祖先1.2.5

What I want to do is, deliver the navigation to my layout. So I've defined a before filter in my ApplicationController.

我想做的是，将导航发送到我的布局。我在应用程序控制器中定义了一个before过滤器。

class ApplicationController < ActionController::Base
  [..]
  before_filter :current_navigation
  [..]
  def current_navigation
    @n = PublicationDecorator.find(1)
  end
end

As you see in the code listing above, I'm using the draper. My PublicationDecorator isn't available in the ApplicationController. So how do I get all my Publications decorated?

正如您在上面的代码清单中看到的，我正在使用draper。我的PublicationDecorator在ApplicationController中不可用。那么我该如何装饰我所有的出版物呢?

uninitialized constant ApplicationController::PublicationDecorator

I'm using the ancestry gem to realize a hierarchy. A further question is, will be all objects decorated, if I'm using ancestry?

我正在使用祖先宝石来实现等级。进一步的问题是，如果我使用祖先，所有的物品会被装饰吗?

1 个解决方案

#1

Make your PublicationDecorator available in your ApplicationController.

让您的PublicationDecorator在您的应用程序控制器中可用。

require 'publication_decorator.rb' # <--
class ApplicationController < ActionController::Base
  [..]
  before_filter :current_navigation
  [..]
  def current_navigation
    @n = PublicationDecorator.find(1)
  end
end

To get children or even parents decorated add the association to your decorator:

要让孩子甚至是父母得到装饰，可以在你的装饰师中加入这种联系:

class PublicationDecorator < Draper::Base
  decorates :publication
  decorates_association :children
  [..]

end

#1