gem install simple_presenter

class User < ActiveRecord::Base
  # implements the following attributes: name, email, password_hash, password_salt
end

class UserPresenter < Presenter
  expose :name, :email
end

user = UserPresenter.new(User.first)
users = UserPresenter.map(User.all)

If you're using Simple Presenter within Rails, presenters also have access to:

• route helpers: just use the routes or r methods
• view helpers: just use the helpers or h methods
• I18n methods: just use the translate, t, localize or l methods

If you want to to use *_url route methods, make sure you set the default_url_options option. You can use the config.simple_presenter.default_url_options method, which defaults to config.action_mailer.default_url_options. You can add something like the following to your config/environments/development.rb, for instance:

config.simple_presenter.default_url_options = {:host => "localhost:3000"}

For additional usage, check the specs.

• Recognize ActiveRecord objects and automatically expose attributes used by url and form helpers (like Model.model_name, Model#to_key, and Model#to_param).
• Override respond_to? to reflect exposed attributes.

If you're having problems because already have a class/module called Presenter that is conflicting with this gem, you can require the namespace and inherit from SimplePresenter::Base.

require "simple_presenter/namespace"

class UserPresenter < SimplePresenter::Base
end

If you're using Rails/Bundler or something like that, remember to override the :require option.

source :rubygems

gem "simple_presenter", :require => "simple_presenter/namespace"

• Nando Vieira (http://nandovieira.com.br)

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