Internationalization

Gemfile

@@ -48,3 +48,5 @@ gem "rolify", "~> 6.0"
 gem "groupdate", "~> 6.1"
 
 gem 'pg', '~> 1.4', '>= 1.4.1', group: :production
+
+gem "devise-i18n", "~> 1.10"

Gemfile.lock

@@ -64,6 +64,7 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.2)
     bcrypt (3.1.18)
+    bcrypt (3.1.18-java)
     bindex (0.8.1)
     bootsnap (1.12.0)
       msgpack (~> 1.2)
@@ -90,8 +91,13 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
+    devise-i18n (1.10.2)
+      devise (>= 4.8.0)
     erubi (1.10.0)
     ffi (1.15.5)
+    ffi (1.15.5-java)
+    ffi (1.15.5-x64-mingw32)
+    ffi (1.15.5-x86-mingw32)
     globalid (1.0.0)
       activesupport (>= 5.0)
     groupdate (6.1.0)
@@ -102,6 +108,7 @@ GEM
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
     json (2.6.2)
+    json (2.6.2-java)
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.2)
@@ -134,22 +141,35 @@ GEM
     mini_portile2 (2.8.0)
     minitest (5.16.2)
     msgpack (1.5.3)
+    msgpack (1.5.3-java)
     nio4r (2.5.8)
+    nio4r (2.5.8-java)
     nokogiri (1.13.8)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
+    nokogiri (1.13.8-java)
+      racc (~> 1.4)
+    nokogiri (1.13.8-x64-mingw32)
+      racc (~> 1.4)
+    nokogiri (1.13.8-x86-mingw32)
+      racc (~> 1.4)
     orm_adapter (0.5.0)
     parallel (1.22.1)
     parser (3.1.2.0)
       ast (~> 2.4.1)
     pg (1.4.1)
+    pg (1.4.1-x64-mingw32)
+    pg (1.4.1-x86-mingw32)
     prettier_print (0.1.0)
     public_suffix (4.0.7)
     puma (5.6.4)
       nio4r (~> 2.0)
+    puma (5.6.4-java)
+      nio4r (~> 2.0)
     pundit (2.2.0)
       activesupport (>= 3.0.0)
     racc (1.6.0)
+    racc (1.6.0-java)
     rack (2.2.4)
     rack-mini-profiler (2.3.4)
       rack (>= 1.2.0)
@@ -217,6 +237,8 @@ GEM
       sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.4.0)
       ffi (~> 1.9)
+    sassc (2.4.0-x64-mingw32)
+      ffi (~> 1.9)
     sassc-rails (2.1.2)
       railties (>= 4.0.0)
       sassc (>= 2.0)
@@ -251,6 +273,8 @@ GEM
     turbolinks-source (5.2.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
+    tzinfo-data (1.2022.1)
+      tzinfo (>= 1.0.0)
     unicode-display_width (2.2.0)
     uniform_notifier (1.16.0)
     warden (1.2.9)
@@ -272,6 +296,8 @@ GEM
     websocket (1.2.9)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
+    websocket-driver (0.7.5-java)
+      websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
@@ -290,6 +316,7 @@ DEPENDENCIES
   byebug
   capybara (>= 3.26)
   devise (~> 4.8)
+  devise-i18n (~> 1.10)
   groupdate (~> 6.1)
   jbuilder (~> 2.7)
   kaminari (~> 1.2)

app/controllers/application_controller.rb

@@ -3,10 +3,24 @@ class ApplicationController < ActionController::Base
 
   rescue_from Pundit::NotAuthorizedError, with: :user_not_authorized
 
+  around_action :switch_locale
+
   private
 
-  def user_not_authorized
-    flash[:alert] = 'You are not authorized to perform this action.'
-    redirect_back(fallback_location: root_path)
+  def default_url_options
+    { locale: I18n.locale }
+  end
+
+  def switch_locale(&action)
+    locale = params[:locale] || I18n.default_locale
+    I18n.with_locale(locale, &action)
+  end
+
+
+  def user_not_authorized(exception)
+    policy_name = exception.policy.class.to_s.underscore
+
+    flash[:alert] = t "#{policy_name}.#{exception.query}", scope: "pundit", default: :default
+    redirect_to(request.referrer || root_path)
   end
 end

app/controllers/articles_controller.rb

@@ -24,7 +24,7 @@ def index
                        .desc_order
                        .page(current_page)
 
-    @archives = Article.group_by_month(:created_at, format: '%B %Y').count
+    @archives = Article.group_by_month(:created_at, format: '%B %Y', locale: :en).count
   end
 
   def show
@@ -40,7 +40,7 @@ def create
     @article = current_user.articles.new(article_params)
 
     if @article.save
-      redirect_to @article, notice: 'Article was successfully created.'
+      redirect_to @article, notice: t('.success')
     else
       render :new
     end
@@ -50,15 +50,15 @@ def edit; end
 
   def update
     if @article.update(article_params)
-      redirect_to @article, notice: 'Article was successfully updated.'
+      redirect_to @article, notice: t('.success')
     else
       render :new
     end
   end
 
   def destroy
     @article.destroy
-    redirect_to root_path, notice: 'Article was successfully deleted.'
+    redirect_to root_path, notice: t('.success')
   end
 
   private

app/controllers/categories_controller.rb

@@ -23,7 +23,7 @@ def create
 
     respond_to do |format|
       if @category.save
-        format.html { redirect_to categories_url, notice: 'Category was successfully created.' }
+        format.html { redirect_to categories_url, notice: t('app.create.success', model: Category.model_name.human)}
         format.json { render :show, status: :created, location: @category }
       else
         format.html { render :new, status: :unprocessable_entity }
@@ -36,7 +36,7 @@ def create
   def update
     respond_to do |format|
       if @category.update(category_params)
-        format.html { redirect_to categories_url, notice: 'Category was successfully updated.' }
+        format.html { redirect_to categories_url, notice: t('app.update.success', model: Category.model_name.human) }
         format.json { render :show, status: :ok, location: @category }
       else
         format.html { render :edit, status: :unprocessable_entity }
@@ -49,7 +49,7 @@ def update
   def destroy
     if @category.destroy
       respond_to do |format|
-        format.html { redirect_to categories_url, notice: 'Category was successfully deleted.' }
+        format.html { redirect_to categories_url, notice: t('app.destroy.success', model: Category.model_name.human) }
         format.json { head :no_content }
       end
     else

app/controllers/comments_controller.rb

@@ -4,15 +4,15 @@ class CommentsController < ApplicationController
 
   def create
     @article.comments.create(comment_params.to_h.merge!({ user_id: current_user.id }))
-    redirect_to article_path(@article), notice: 'Comment was successfuly created.'
+    redirect_to article_path(@article), notice: t('app.create.success', model: Comment.model_name.human)
   end
 
   def destroy
     comment = @article.comments.find(params[:id])
     authorize comment
 
     comment.destroy
-    redirect_to article_path(@article), notice: 'Comment was successfuly deleted.'
+    redirect_to article_path(@article), notice: t('app.destroy.success', model: Comment.model_name.human)
   end
 
   private

app/helpers/application_helper.rb

@@ -1,6 +1,10 @@
 module ApplicationHelper
-  def month_day_comma_year(datetime)
-    datetime.strftime('%B %e, %Y')
+  def month_day_comma_year(value)
+    l(value, format: '%B %e, %Y').capitalize
+  end
+
+  def month_year(value)
+    l(value.to_datetime, format: '%B %Y').capitalize
   end
 
   def render_if(condition, template, record)

app/policies/category_policy.rb

@@ -14,14 +14,14 @@ def index?
   end
 
   def create?
-    user.admin? || user.has_role?(:moderator)
+    user&.admin? || user.has_role?(:moderator)
   end
 
   def update?
-    user.admin? || user.has_role?(:moderator)
+    user&.admin? || user.has_role?(:moderator)
   end
 
   def destroy?
-    user.admin?
+    user&.admin?
   end
 end

app/views/articles/_about.html.erb

@@ -1,4 +1,4 @@
 <div class="p-4 mb-3 bg-light rounded">
-  <h4 class="fst-italic">About</h4>
-  <p class="mb-0">Hey there! My name is Mateus, im a programmer aiming to become a Ruby on Rails developer!</p>
+  <h4 class="fst-italic"><%= t 'articles.about.title' %></h4>
+  <p class="mb-0"><%= t 'articles.about.description' %></p>
 </div>

app/views/articles/_archives.html.erb

@@ -1,9 +1,9 @@
 <div class="p-4">
-  <h4 class="fst-italic">Archives</h4>
+  <h4 class="fst-italic"><%= t 'articles.archives' %></h4>
   <ol class="list-unstyled mb-0">
     <% @archives.each do |month_year, count| %>
       <li>
-        <%= link_to "#{month_year} (#{count})", articles_path(month_year: month_year),
+        <%= link_to "#{month_year(month_year)} (#{count})", articles_path(month_year: month_year),
         class: "p-2 link-secondary #{'filter-active' if month_year == params[:month_year]}" %>
       </li>
     <% end %>

app/views/articles/_article.html.erb

@@ -2,5 +2,5 @@
   <h2 class="blog-post-title mb-1"><%= article.title %></h2>
   <p class="blog-post-meta"><%= render 'article_detail', article: article %></p>
   <p><%= truncate(article.body, length: 150) %></p>
-  <p><%= link_to 'continue reading...', article, class: 'btn btn-link' %></p>
+  <p><%= link_to t('articles.continue_reading'), article, class: 'btn btn-link' %></p>
 </article>

app/views/articles/_article_detail.html.erb

@@ -1,3 +1,3 @@
-<%= month_day_comma_year(article.created_at) %> by
-<%= sub_masked_email(article.user.email) %> in
+<%= month_day_comma_year(article.created_at) %> <%= t 'app.word.by' %>
+<%= sub_masked_email(article.user.email) %> <%= t 'app.word.in' %>
 <%= article.category.name %>

app/views/articles/_elsewhere.html.erb

@@ -1,5 +1,5 @@
 <div class="p-4">
-  <h4 class="fst-italic">Elsewhere</h4>
+  <h4 class="fst-italic"><%= t 'articles.elsewhere' %></h4>
   <ol class="list-unstyled">
     <li><a href="https://github.com/mateusflorez" target="_blank">GitHub</a></li>
     <li><a href="https://www.linkedin.com/in/mateuspaz/" target="_blank">LinkedIn</a></li>

app/views/articles/_form.html.erb

@@ -2,10 +2,10 @@
   <div class="form-inputs">
     <%= f.input :title %>
     <%= f.input :body, input_html: { rows: 10 } %>
-    <%= f.association :category, collection: @categories, prompt: 'Choose a category' %>
+    <%= f.association :category, collection: @categories, prompt: t('articles.form.choose_category') %>
   </div>
   <div class="form-actions">
     <%= f.button :submit, class: 'btn btn-primary' %>
-    <%= link_to 'Back', root_path, class: 'btn btn-secondary' %>
+    <%= link_to t('app.button.back'), root_path, class: 'btn btn-secondary' %>
   </div>
 <% end %>

app/views/articles/_longer_featured.html.erb

@@ -3,7 +3,7 @@
     <h1 class="display-4 fst-italic"><%= article.title %></h1>
     <p class="lead my-3"><%= truncate(article.body, length: 100) %></p>
     <p class="lead mb-0">
-      <%= link_to 'Continue reading...', article, class: 'text-white fw-bold' %>
+      <%= link_to t('articles.continue_reading'), article, class: 'text-white fw-bold' %>
     </p>
   </div>
 </div>

app/views/articles/_medium_featured.html.erb

@@ -5,7 +5,7 @@
       <h3 class="mb-0"><%= article.title %></h3>
       <div class="mb-1 text-muted"><%= render 'article_detail', article: article %></div>
       <p class="card-text mb-auto"><%= truncate(article.body, length: 100) %></p>
-      <%= link_to 'Continue reading...', article, class: 'stretched-link' %>
+      <%= link_to t('articles.continue_reading'), article, class: 'stretched-link' %>
     </div>
     <div class="col-auto d-none d-lg-block">
       <svg class="bd-placeholder-img" width="200" height="250" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="Placeholder: Thumbnail" preserveAspectRatio="xMidYMid slice" focusable="false"><title>Placeholder</title><rect width="100%" height="100%" fill="#55595c"/><text x="50%" y="50%" fill="#eceeef" dy=".3em">Thumbnail</text></svg>

app/views/articles/_pagination.html.erb

@@ -1,4 +1,4 @@
 <nav class="blog-pagination" aria-label="Pagination">
-  <%= link_to_next_page @articles, 'Older', class: 'btn btn-outline-primary rounded-pill' %>
-  <%= link_to_previous_page @articles, 'Newer', class: 'btn btn-outline-secondary rounded-pill' %>
+  <%= link_to_next_page @articles, t('app.pagination.older'), class: 'btn btn-outline-primary rounded-pill' %>
+  <%= link_to_previous_page @articles, t('app.pagination.newer'), class: 'btn btn-outline-secondary rounded-pill' %>
 </nav>

app/views/articles/edit.html.erb

@@ -1,3 +1,3 @@
-<h1>Edit article</h1>
+<h1><%= t('app.edit.title', model: Article.model_name.human ) %></h1>
 
 <%= render 'form', article: @article %>

app/views/articles/index.html.erb

@@ -6,9 +6,9 @@
 <div class="row g-5">
   <div class="col-md-8">
     <h3 class="pb-4 mb-4 fst-italic border-bottom">
-      Newest posts
+      <%= t '.subtitle' %>
     </h3>
-    <p><%= link_to 'New article', new_article_path,
+    <p><%= link_to t('.new_article'), new_article_path,
     {class: 'btn btn-success',
     'data-bs-toggle':'tooltip',
     'data-bs-placement':'top',

app/views/articles/new.html.erb

@@ -1,3 +1,3 @@
-<h1>New article</h1>
+<h1><%= t '.title' %></h1>
 
 <%= render 'form', article: @article %>

app/views/articles/show.html.erb

@@ -2,18 +2,18 @@
   <h2 class="blog-post-title mb-1"><%= @article.title %></h2>
   <p class="blog-post-meta"><%= render 'article_detail', article: @article %></p>
   <p><%= @article.body %></p>
-  <%= link_to 'Edit', edit_article_path(@article), class: 'btn btn-primary' if policy(@article).update? %>
-  <%= link_to 'Delete', article_path(@article),
+  <%= link_to t('app.button.edit'), edit_article_path(@article), class: 'btn btn-primary' if policy(@article).update? %>
+  <%= link_to t('app.button.destroy'), article_path(@article),
     method: :delete,
-    data: { confirm: 'Are your sure?' },
+    data: { confirm: t('app.message.confirm_destroy') },
     class: 'btn btn-danger' if policy(@article).destroy? %>
-  <%= link_to 'Back', root_path, class: 'btn btn-secondary' %>
-  <h2 class="mt-3">Comments</h2>
+  <%= link_to t('app.button.back'), root_path, class: 'btn btn-secondary' %>
+  <h2 class="mt-3"><%= t '.comments' %></h2>
   <%= render @article.comments %>
-  <h2>Add a comment:</h2>
+  <h3><%= t '.add_comment' %>:</h3>
   <% if policy(:comment).create? %>
   <%= render 'comments/form' %>
   <% else %>
-  Please, login to create a comment
+  <%= t '.login_create_comment' %>
   <% end %>
 </article>

app/views/categories/_form.html.erb

@@ -6,6 +6,6 @@
   </div>
     <div class="form-actions">
       <%= f.button :submit, class: 'btn btn-primary' %>
-      <%= link_to 'Back', categories_path, class: 'btn btn-secondary' %>
+      <%= link_to t('app.button.back'), categories_path, class: 'btn btn-secondary' %>
     </div>
 <% end %>

app/views/categories/edit.html.erb

@@ -1,3 +1,5 @@
-<h1>Editing Category</h1>
+<h1><%= t('app.edit.title', model: Category.model_name.human) %></h1>
 
 <%= render 'form', category: @category %>
+
+<%= link_to t('app.button.back'), categories_path %>