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@ThreeTreesLight

ActiveRecord Associationのdecorate

More than 5 years have passed since last update.

今更ながらにDraper gemでActiveRecord Associationをdecorateします。

ほんと少しでも迷ったらまず、ドキュメントちゃんと読むべきだった恥ずかしい。。。

TL;DR

Draper::CollectionDecorator使いましょう

今までやっていたような事

article modelにkaminari gemでpagenationを加え、titleをCapitalizeするdecorateしてみる例

# article_decorator.rb
class ArticleDecorator < Draper::Decorator
  delegate_all

  def title
    object.title.capitalize
  end
end

そんでもって

# controller
@articles = Article.all.page page[:page]

# hamlとかでview
@articles.each do |article|
   - article.decorate
   = article.title

みたいなことやってた。collection回す中でわざわざdecorateしてた。

はずかしい。

associationにはDraper::CollectionDecoratorを使おう

association用のdecoratorを作る

# articles_decorator.rb
class ArticlesDecorator < Draper::CollectionDecorator
  delegate :current_page, :total_pages, :limit_value
end

これで各々のactiveReocrd modelもそれぞれdecorateされます。

あぁ恥ずかしい。。。

参考

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Help us understand the problem. What is going on with this article?