Accessing helper modules into decorate with Rails 4

Additionally, a decorator has access to Rails helper modules via the helper proxy method. This is useful when you want to hide complex logic from the templates.

class PersonDecorator < Draper::Decorator
  delegate_all

  def author_headline
    if author == helper.current_user
      h.content_tag(:h3, 'You')
    else
      h.content_tag(:h3, author.name)
    end
  end
end

Now in your template you just call @person.author_headline and you are done. No conditions in the template. Your designers will be thankful!

Access current_user into decorate like below.

h.current_user