First approach to localized field

.gitignore

@@ -17,5 +17,7 @@ tmtags
 coverage
 rdoc
 pkg
+.bundle
 
 ## PROJECT::SPECIFIC
+

Gemfile

@@ -0,0 +1,8 @@
+source :gemcutter
+
+gem 'bson_ext', '0.20.1'
+gem 'mongoid', '2.0.0.beta4'
+gem 'rspec', '2.0.0.beta.8'
+gem 'mocha'
+
+gem 'jeweler'

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 Rodrigo Álvarez
+Copyright (c) 2010 Rodrigo Álvarez
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

Rakefile

@@ -1,36 +1,33 @@
+# encoding: utf-8
 require 'rubygems'
 require 'rake'
+require 'rspec'
+require 'rspec/core/rake_task'
 
 begin
   require 'jeweler'
   Jeweler::Tasks.new do |gem|
     gem.name = "mongoid_i18n"
     gem.summary = %Q{Mongoid plugin to deal with localizable fields}
-    gem.description = %Q{TODO: longer description of your gem}
+    gem.description = %Q{This gem aims to be a transparent way to deal with localizable fields.
+      Basically use localized_field() instead of field() and that's it.
+      It will take care of locales for you when using find.
+      }
     gem.email = "[email protected]"
     gem.homepage = "http://github.com/Papipo/mongoid_i18n"
     gem.authors = ["Rodrigo Álvarez"]
-    gem.add_development_dependency "rspec", ">= 1.2.9"
+    gem.add_dependency "mongoid", '2.0.0.beta4'
+    gem.add_development_dependency "rspec", "2.0.0.beta.8"
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new
 rescue LoadError
   puts "Jeweler (or a dependency) not available. Install it with: gem install jeweler"
 end
 
-require 'spec/rake/spectask'
-Spec::Rake::SpecTask.new(:spec) do |spec|
-  spec.libs << 'lib' << 'spec'
-  spec.spec_files = FileList['spec/**/*_spec.rb']
-end
-
-Spec::Rake::SpecTask.new(:rcov) do |spec|
-  spec.libs << 'lib' << 'spec'
-  spec.pattern = 'spec/**/*_spec.rb'
-  spec.rcov = true
-end
 
-task :spec => :check_dependencies
+desc "Run all examples"
+Rspec::Core::RakeTask.new(:spec)
 
 task :default => :spec
 

lib/mongoid/i18n.rb

@@ -0,0 +1,29 @@
+gem 'mongoid', '2.0.0.beta4'
+require 'mongoid'
+require 'mongoid/i18n/localized_field'
+
+module Mongoid
+  module I18n
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def localized_field(name, options = {})
+        field name, options.merge(:type => LocalizedField, :default => {})
+      end
+
+      protected
+      def create_accessors(name, meth, options = {})
+        if options[:type] == LocalizedField
+          define_method(meth) { read_attribute(name)[::I18n.locale] }
+          define_method("#{meth}=") do |value| 
+            write_attribute(name, (@attributes[name] || {}).merge(::I18n.locale => value))
+          end
+          define_method("#{meth}_translations") { read_attribute(name) }
+          define_method("#{meth}_translations=") { |value| write_attribute(name, value) }
+        else
+          super
+        end
+      end
+    end
+  end
+end

lib/mongoid/i18n/localized_field.rb

@@ -0,0 +1,6 @@
+module Mongoid
+  module I18n
+    class LocalizedField < Hash
+    end
+  end
+end

spec/integration/mongoid/i18n_spec.rb

@@ -0,0 +1,73 @@
+# encoding: utf-8
+require 'spec_helper'
+
+class Entry
+  include Mongoid::Document
+  include Mongoid::I18n
+
+  localized_field :title
+  field :published, :type => Boolean
+end
+
+describe Mongoid::I18n, "localized_field" do
+  describe "with an assigned value" do
+    before do
+      I18n.locale = :en
+      @entry = Entry.new(:title => 'Title')
+    end
+
+    it "should return that value" do
+      @entry.title.should == 'Title'
+    end
+
+    describe "when the locale is changed" do
+      before do
+        I18n.locale = :es
+      end
+
+      it "should return a blank value value" do
+        @entry.title.should be_blank
+      end
+
+      describe "a new value is assigned" do
+        before do
+          @entry.title = 'Título'
+        end
+
+        it "should return the new value" do
+          @entry.title.should == 'Título'
+        end
+
+        describe "getter.translations" do
+          it "should return all translations" do
+            @entry.title_translations.should == {:en => 'Title', :es => 'Título'}
+          end
+        end
+
+        describe "getter.translations=" do
+          before do
+            @entry.title_translations = {:en => 'New title', :es => 'Nuevo título'}
+          end
+
+          it "should accept new translations" do
+            @entry.title_translations.should == {:en => 'New title', :es => 'Nuevo título'}
+          end
+
+          it "the setter should return the new translation" do
+            @entry.title.should == 'Nuevo título'
+          end
+        end
+
+        describe "and we go back to the original locale" do
+          before do
+            I18n.locale = :en
+          end
+
+          it "should return the original value" do
+            @entry.title.should == 'Title'
+          end
+        end
+      end
+    end
+  end
+end

spec/spec_helper.rb

@@ -1,9 +1,18 @@
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
-require 'mongoid_i18n'
-require 'spec'
-require 'spec/autorun'
 
-Spec::Runner.configure do |config|
-
+require 'mongoid/i18n'
+require 'rspec'
+require 'rspec/autorun'
+
+Rspec.configure do |config|
+  config.mock_with :mocha
+  config.after :each do
+    Mongoid.master.collections.each(&:drop)
+  end
 end
+
+Mongoid.configure do |config|
+  config.master = Mongo::Connection.new.db('mongoid_i18n_test')
+  config.allow_dynamic_fields = false
+end