如何在Rails 3中使用Draper装饰嵌套属性(关联)?

问题描述

我的环境:

• 导轨3.2
  • 带有 draper gem

我正在使用嵌套的资源，无法弄清楚在哪里声明装饰器.

#app/controllers/users_controller.rb
def show
  @user = UserDecorator.find(params[:id])
  @items = @user.items
end

#app/controllers/items_controller.rb
def show
  @item = @user.items.find(params[:id])
end

我尝试用ItemDecorator替换items，但是没有用.我应该放在哪里?

我知道Draper在表单中的嵌套资源有问题，但这不是表单！

解决方案

据我对您的问题的正确理解，您有一个模型user，其中有很多items，但是您的items却没有装饰?

因此添加到您的UserDecorator:

class UserDecorator < Draper::Base
  decorates :user
  decorates_association :items #, :with => :item 

  [..]
end

class ItemDecorator < Draper::Base
  decorates :item

  [..]
end

请查看来源. /p>

My environment:

• Rails 3.2
  • with draper gem

I'm using nested resources and having trouble figuring out where to declare the decorator.

#app/controllers/users_controller.rb
def show
  @user = UserDecorator.find(params[:id])
  @items = @user.items
end

#app/controllers/items_controller.rb
def show
  @item = @user.items.find(params[:id])
end

I tried replacing items with ItemDecorator and it didn't work. Where should I be putting it?

I know that Draper has issues with nested resources in forms, but this isn't a form!

解决方案

As far as I've understood your problem correctly, you've a model user which has many items, but your items were not decorated?

So add to your UserDecorator:

class UserDecorator < Draper::Base
  decorates :user
  decorates_association :items #, :with => :item 

  [..]
end

class ItemDecorator < Draper::Base
  decorates :item

  [..]
end

Have a look on the source.

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