PoC: Presenters

core/app/presenters/spree/country_list_presenter.rb

@@ -0,0 +1,15 @@
+module Spree
+ class CountryListPresenter < Spree::Presenter::Base
+ def initialize(presentee)
+ presentee = prepare_countries(presentee)
+
+ super
+ end
+
+ protected
+
+ def prepare_countries(countries)
+ countries.map { |country| Spree::CountryPresenter.new(country) }.sort_by { |c| c.name.parameterize }
+ end
+ end
+end

core/app/presenters/spree/country_presenter.rb

@@ -0,0 +1,21 @@
+module Spree
+ class CountryPresenter < Spree::Presenter::Base
+ def name
+ translated_name || carmen_name || super
+ end
+
+ def carmen_country
+ Carmen::Country.coded iso
+ end
+
+ def carmen_name
+ carmen_country.try :name
+ end
+
+ def translated_name
+ return nil unless iso
+
+ I18n.t("spree.country_names.#{iso}", default: nil)
+ end
+ end
+end

core/lib/spree/core.rb

@@ -86,6 +86,7 @@ class GatewayError < RuntimeError; end
 require 'spree/core/stock_configuration'
 require 'spree/core/validators/email'
 require 'spree/permission_sets'
+require 'spree/presenter'
 
 require 'spree/preferences/store'
 require 'spree/preferences/static_model_preferences'

core/lib/spree/presenter.rb

@@ -0,0 +1,7 @@
+module Spree
+ module Presenter
+ end
+end
+
+require 'spree/presenter/base'
+

core/lib/spree/presenter/base.rb

@@ -0,0 +1,13 @@
+module Spree
+ module Presenter
+ class Base < SimpleDelegator
+ attr_reader :presentee
+
+ def initialize(presentee)
+ @presentee = presentee
+
+ super(presentee)
+ end
+ end
+ end
+end