lesson 11 - I18n

app/controllers/application_controller.rb

@@ -2,4 +2,5 @@ class ApplicationController < ActionController::Base
   protect_from_forgery
 
   respond_to :json, :html, :xml
+
 end

app/helpers/admin/base_helper.rb

@@ -1,12 +1,17 @@
 module Admin::BaseHelper
+
+  def link_to_new(model, url, html_options = {})
+    link_to t("new", model: model.model_name.human), url, html_options
+  end
+
   def link_to_edit(url, html_options = {})
     html_options.reverse_merge!(:class => "green")
-    link_to "edit", url, html_options
+    link_to t("edit"), url, html_options
   end
 
   def link_to_destroy(url, html_options = {})
     html_options.reverse_merge!(:confirm => 'Are you sure?', :method => :delete, :class => "red")
-    link_to "destroy", url, html_options
+    link_to t("destroy"), url, html_options
   end
 
   def section(title="", &block)
@@ -17,4 +22,11 @@ def section(title="", &block)
       html.html_safe
     end
   end
+
+  def translate_attribute(model, attribute)
+    model.human_attribute_name(attribute)
+  end
+  alias_method :ta, :translate_attribute
+
+
 end

app/views/admin/posts/_form.html.erb

@@ -3,43 +3,43 @@
 
   <div id="body">
     <div class="field">
-      <%= f.label :author_id, "Post by: " %>
+      <%= f.label :author_id, t(".author") %>
       <%= f.collection_select :author_id, @authors, :id, :full_name %>
     </div>
 
     <div class="field">
-      <%= f.text_field :title, :placeholder => "Title", :class => "title" %>
+      <%= f.text_field :title, :placeholder => ta(Post, :title), :class => "title" %>
     </div>
 
     <div class="field">
-      <%= f.text_area :excerpt, :placeholder => "Excerpt", :rows => 5, :cols => 70 %>
+      <%= f.text_area :excerpt, :placeholder => ta(Post, :excerpt), :rows => 5, :cols => 70 %>
     </div>
 
     <div class="field">
-      <%= f.text_area :body, :placeholder => "Body", :rows => 30, :cols => 70 %>
+      <%= f.text_area :body, :placeholder => ta(Post, :body), :rows => 30, :cols => 70 %>
     </div>
 
     <div class="field">
       <%= f.check_box :draft %>
-      <%= f.label :draft, "Save as Draft" %>
+      <%= f.label :draft %>
     </div>
 
     <hr class="thick" />
 
     <p>
-      <%= f.submit :class => "button" %> or <%= link_to "cancel", admin_posts_path %>
+      <%= f.submit :class => "button" %> or <%= link_to t("cancel"), admin_posts_path %>
     </p>
   </div>
 
   <div id="sidebar">
-    <%= section "Publish with these categories" do %>
+    <%= section t(".categories") do %>
       <ul class="categories-field">
         <% @categories.each do |c| %>
           <li><%= check_box_tag "post[category_ids][]", c.id, @post.categories.include?(c) %> <%= c.name %></li>
         <% end %>
       </ul>
       <div class="bar">
-        <%= link_to "New category", new_admin_category_path, :class => "button right" %>
+        <%= link_to_new Category, new_admin_category_path, :class => "button right" %>
       </div>
       <br/>
     <% end %>

app/views/admin/posts/edit.html.erb

@@ -1,6 +1,6 @@
 <h2>
 
-  Editing post
+  <%=t ".title" %>
 
   <%= link_to "Preview", [:admin, @post],
         :class => "button right",

app/views/admin/posts/index.html.erb

@@ -14,13 +14,13 @@
   <% end %>
 </ul>
 <% else %>
-  <p>You don't have any posts yet.</p>
+  <p><%=t "empty", collection: "posts" %></p>
 <% end %>
 
 <hr class="thick" />
 
 <div class="bar">
   <div class="right">
-    <%= link_to 'New Post', new_admin_post_path, :class => "button" %>
+    <%= link_to_new Post, new_admin_post_path, :class => "button" %>
   </div>
 </div>

app/views/admin/posts/new.html.erb

@@ -1,3 +1,3 @@
-<h2>New post</h2>
+<h2><%=t ".title" %></h2>
 
 <%= render 'form' %>

app/views/pages/index.pt-BR.html.erb

@@ -0,0 +1,13 @@
+<%= image_tag "banner.jpg", :class => "frame" %>
+
+<div id="content">
+  <div id="column1">
+    <h2>Quem já utiliza Rails?</h2>
+    <p>Dezenas de centenas de aplicações Rails já estão rodando em todo o mundo. Pessoas estão utilizando o Rails em diversas situações, desde pequena operações pequenas até gigantes corporações.</p>
+  </div>
+
+  <div id="column2">
+    <h2>Quem está por trás?</h2>
+    <p>Rails foi criado em 2003 por David Heinemeier Hansson e desde então foi expandido pelo time central do Rails, mais de 1.400 contribuidores e suportado por um vibrante ecossistema.</p>
+  </div>
+</div>

app/views/shared/_error_messages.html.erb

@@ -1,6 +1,10 @@
 <% if resource.errors.any? %>
   <div id="error_explanation">
-    <h2><%= pluralize(resource.errors.count, "error") %> prohibited this post from being saved:</h2>
+    <h2>
+      <%= t "error_message_header",
+            :count => resource.errors.count,
+            :model => resource.class.model_name.human %>
+    </h2>
 
     <ul>
     <% resource.errors.full_messages.each do |msg| %>

config/application.rb

@@ -30,8 +30,8 @@ class Application < Rails::Application
     # config.time_zone = 'Central Time (US & Canada)'
 
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
-    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
-    # config.i18n.default_locale = :de
+    config.i18n.load_path += Dir[File.join(Rails.root, 'config', 'locales', '**', '*.{rb,yml}')]
+    # config.i18n.default_locale = "pt-BR"
 
     # Configure the default encoding used in templates for Ruby 1.9.
     config.encoding = "utf-8"

config/locales/en/app.yml

@@ -0,0 +1,22 @@
+# Sample localization file for English. Add more files in this directory for other locales.
+# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
+
+en:
+  empty: "We don't have any %{collection} yet."
+  confirm: Are you sure?
+  edit: Edit
+  destroy: Destroy
+  new: Create %{model}
+  cancel: Cancel
+  error_message_header: "%{count} error(s) prohibited this %{model} from being saved:"
+
+  admin:
+    posts:
+      new:
+        title: New post
+      edit:
+        title: Editing post
+      form:
+        categories: Publish with these categories
+        slug: Set a custom url
+        author: "Post by:"

config/locales/pt-BR/app.yml

@@ -0,0 +1,41 @@
+pt-BR:
+  empty: "Não temos nenhum %{model} ainda."
+  confirm: Tem certeza?
+  edit: Editar
+  destroy: Apagar
+  cancel: Cancelar
+  new: Criar %{model}
+  error_message_header: "%{count} erro(s) impediram este %{model} de ser gravado:"
+
+  admin:
+    posts:
+      new:
+        title: Novo post
+      edit:
+        title: Editando post
+      form:
+        categories: Publicar com estas categorias
+        slug: Defina uma url
+        author: "Post por:"
+
+  activerecord:
+    models:
+      user:
+        one: Usuário
+        other: Usuários
+      category:
+        one: Categoria
+        other: Categorias
+      post:
+        one: Post
+        other: Posts
+
+    attributes:
+      post:
+        title: "Título"
+        body: "Conteúdo"
+        excerpt: "Resumo"
+        published_at: "Publicado em"
+        slug: "Url customizada"
+        author: "Autor"
+        draft: "Rascunho"