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Simple presenters for rails. https://github.com/halogenandtoast/presentable
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Readme.textile

Presentable

Making presenters easy and fun!

Setup for Rails

Update config/environment.rb

config.load_paths += %W( #{RAILS_ROOT}/app/presenters )

Create a presenter class

class PostPresenter < Presenter
  def title
    "#{original_title} - <span class='date'>#{created_at.strftime('%B %d')}</span>" # reference old values by prefixing them with original_
  end
end

Call present on your instance

@post = Post.find(params[:id]).presenter

Use presenter methods in your view

<h2><%= @post.title %></h2>
<p>@post.body</p>
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