Issue 4099 add a preference for the preferred locale for a user.

.travis.yml

@@ -22,8 +22,9 @@ services:
   - redis-server
   - memcached
 script:
-  - bundle exec rake db:create:all --trace
-  - bundle exec rake db:schema:load --trace
+  - rm -f structure.sql
+  - RAILS_ENV=test bundle exec rake db:create:all --trace
+  - RAILS_ENV=test bundle exec rake db:schema:load --trace
   - RAILS_ENV=test bundle exec rake db:migrate --trace
   - bundle exec $TEST_GROUP
 before_script:

app/controllers/archive_faqs_controller.rb

@@ -119,7 +119,11 @@ def set_locale
     if params[:language_id] && session[:language_id] != params[:language_id]
       session[:language_id] = params[:language_id]
     end
-    @i18n_locale = session[:language_id] || I18n.default_locale
+    if current_user.present? && $rollout.active?(:set_locale_preference, current_user)
+      @i18n_locale = session[:language_id] || Locale.find(current_user.preference.preferred_locale).iso
+    else
+      @i18n_locale = session[:language_id] || I18n.default_locale
+    end
   end
 
   def require_language_id

app/controllers/preferences_controller.rb

@@ -14,6 +14,7 @@ def index
     @user = User.find_by_login(params[:user_id])
     @preference = @user.preference || Preference.create(:user_id => @user.id)
     @available_skins = (current_user.skins.site_skins + Skin.approved_skins.site_skins).uniq
+    @available_locales = Locale.where(email_enabled: true)
   end
 
   def update

app/models/locale.rb

@@ -1,7 +1,5 @@
 class Locale < ActiveRecord::Base
   belongs_to :language
-  # has_many :translations
-  # has_many :translation_notes
   validates_presence_of :iso
   validates_uniqueness_of :iso
   validates_presence_of :name

app/views/locales/_locale_form.html.erb

@@ -0,0 +1,32 @@
+<%= form_for(@locale, html: { class: 'post' }) do |f| %>
+  <p class="required notice">* <%= t('.required_notice', :default => "Required information") %></p>
+
+  <fieldset>
+    <legend><%= t('.locale_legend', :default => "Locale") %></legend>
+    <h3 class="landmark heading"><%= t('.locale_heading', :default => "Locale") %></h3>
+    <dl>
+      <dt class="required"><%= f.label :name, t('.name', :default => "Name") + '*' %></dt>
+      <dd class="required"><%= f.text_field :name %></dd>
+
+      <dt class="required"><%= f.label :iso, t('.iso', :default => "ISO code") + '*' %></dt>
+      <dd class="required"><%= f.text_field :iso %></dd>
+
+      <dt class="required"><%= f.label :language_id, t('.language', :default => "Language") + '*' %></dt>
+      <dd class="required"><%= f.select(:language_id, @languages.collect { |language| [ language.name, language.id ] }) %></dd>
+
+      <dt><%= f.check_box :email_enabled %></dt>
+      <dd><%= f.label :email_enabled, t('.enable_email', :default => "Use this locale to send email") %></dd>
+
+      <dt><%= f.check_box :interface_enabled %></dt>
+      <dd><%= f.label :interface_enabled, t('.enable_interface', :default => "Use this locale for the interface") %></dd>
+
+    </dl>
+  </fieldset>
+  <fieldset>
+    <legend><%= t('.actions_legend', :default => "Actions") %></legend>
+    <h3 class="landmark heading"><%= t('.actions_heading', :default => "Actions") %></h3>
+    <p class="submit actions">
+      <%= f.submit @locale.new_record? ? t('.create_button', :default => "Create Locale") : t('.edit_button', :default => "Update Locale") %>
+    </p>
+  </fieldset>
+<% end %>

app/views/locales/_navigation.html.erb

@@ -0,0 +1,4 @@
+<ul class="navigation actions" role="navigation">
+  <li><%= span_if_current t('.link_to_index', :default => 'Locales'), locales_path %></li>
+  <li><%= span_if_current t('.link_to_new', :default => 'New Locale'), new_locale_path %></li>
+</ul>

app/views/locales/edit.html.erb

@@ -1,22 +1,13 @@
 <!--Descriptive page name, messages and instructions-->
-<h2 class="heading"><%= t('.edit_locale', :default => 'Edit a locale:') %></h2>
+<h2 class="heading"><%= t('.edit_locale', :default => 'Edit Locale') %></h2>
 <%= error_messages_for :locale %>
 <!--/descriptions-->
 
 <!--subnav-->
+<%= render 'navigation' %>
 <!--/subnav-->
 
 <!--main content-->
-<%= form_for(@locale) do |f| %>
-  <dl>
-    <dt><%= f.label :language_id, t('.language', :default => "Language:") %></dt>
-    <dd><%= f.select(:language_id, @languages.collect {|l| [ l.name, l.id ] }) %></dd>
-    <dt><%= f.label :name, t('.name', :default => "Name:") %></dt>
-    <dd><%= f.text_field :name %></dd>
-    <dt><%= f.label :iso, t('.iso', :default => "Iso:") %></dt>
-    <dd><%= f.text_field :iso %></dd>
-  </dl>
-  <p class="submit actions"><%= f.submit t('.forms.submit', :default => "Submit") %></p>
-<% end %>
+<%= render 'locale_form' %>
 <!--/content-->
 

app/views/locales/index.html.erb

@@ -1,40 +1,50 @@
 <!--Descriptive page name, messages and instructions-->
-<h2 class="heading"><%= t('.supported_locales', :default => 'The archive supports the following locales:') %></h2>
+<h2 class="heading"><%= t('.supported_locales', :default => 'Supported Locales') %></h2>
 <!--/descriptions-->
 
 <!--main content-->
-<% if   logged_in_as_admin? || permit?("translation_admin")  %>
-<p>
-  <%= link_to t('.link_to_new', :default => 'Add a new one'), new_locale_path %>
-</p>
-<!--main content-->
-<h3 class="landmark heading">List of Locales</h3>
-<table summary="Locales">
-    <caption>Locales</caption>
+<% if logged_in_as_admin? || permit?("translation_admin") %>
+  <%= render 'navigation' %>
+  <!--main content-->
+  <table summary="<%= t('.locale_table_summary', :default => 'Lists supported locales, along with details of how they are used and options to modify them.') %>">
+    <caption><%= t('.locale_table_caption', :default => 'Supported Locales') %></caption>
     <thead>
       <tr>
-        <th scope="col"></th>
         <th scope="col">Name</th>
-        <th scope="col">ISO code</th>
-        <th scope="col">Primary locale</th>
+        <th scope="col">ISO Code</th>
+        <th scope="col">Primary Locale</th>
+        <th scope="col">Use for Email</th>
+        <th scope="col">Use for Interface</th>
         <th scope="col">Created at</th>
+        <th scope="col">Actions</th>
       </tr>
     </thead>
     <tbody>
-    <% for locale in @locales %>
-      <tr> <td><%= link_to ts('Edit'), {controller: :locales, action: :edit, id: locale.iso} %></td><td><%= locale.name %></td><td><%=locale.iso%></td><td><%=locale.main%></td><td><%=locale.updated_at%></td></tr>
-    <% end %>
+      <% for locale in @locales %>
+        <tr>
+          <th scope="row"><%= locale.name %></th>
+          <td><%= locale.iso %></td>
+          <td><%= locale.main %></td>
+          <td><%= locale.email_enabled %></td>
+          <td><%= locale.interface_enabled %></td>
+          <td><%= locale.updated_at %></td>
+          <td class="actions">
+            <%= link_to ts('Edit'), {controller: :locales, action: :edit, id: locale.iso} %>
+          </td>
+        </tr>
+      <% end %>
     </tbody>
   </table>
 <% else %>
-<ul>
-<% for locale in @locales %>
- <li><%= locale.name%></li>
-<% end %>
-</ul>
-  <%= link_to t('.suggest_locale', :default => 'Suggest a new one!'), new_feedback_report_path %>
+  <ul>
+    <% for locale in @locales %>
+      <li><%= locale.name %></li>
+    <% end %>
+  </ul>
+  <p class="navigation actions" role="navigation">
+    <%= link_to t('.suggest_locale', :default => 'Suggest a Locale!'), new_feedback_report_path %>
+  </p>
 <% end %>
-
 <!--/content-->
 
 <!--subnav-->

app/views/locales/new.html.erb

@@ -1,24 +1,13 @@
 <!--Descriptive page name, messages and instructions-->
-<h2 class="heading"><%= t('.add_new_locale', :default => 'Add a new locale:') %></h2>
+<h2 class="heading"><%= t('.add_new_locale', :default => 'New Locale') %></h2>
 <%= error_messages_for :locale %>
 <!--/descriptions-->
 
 <!--subnav-->
+<%= render 'navigation' %>
 <!--/subnav-->
 
 <!--main content-->
-<%= form_for(@locale) do |f| %>
-  <dl>
-    <dt><%= f.label :language_id, t('.language', :default => "Language:") %></dt>
-    <dd><%= f.select(:language_id, @languages.collect {|l| [ l.name, l.id ] }) %></dd>
-
-    <dt><%= f.label :name, t('.name', :default => "Name:") %></dt>
-    <dd><%= f.text_field :name %></dd>
-
-    <dt><%= f.label :iso, t('.iso', :default => "Iso:") %></dt>
-    <dd><%= f.text_field :iso %></dd>
-  </dl>
-  <p class="submit actions"><%= f.submit t('.forms.submit', :default => "Submit") %></p>
-<% end %>
+<%= render 'locale_form' %>
 <!--/content-->
 

app/views/preferences/index.html.erb

@@ -63,28 +63,31 @@
       <%= f.check_box :hide_freeform %>
       <%= f.label :hide_freeform, ts('Hide additional tags (you can still choose to show them).')  %>
     </li>
-
     <li>
       <%= f.check_box :disable_work_skins %>
       <%= f.label :disable_work_skins, ts('Hide work skins (you can still choose to show them).')  %> <%= link_to_help 'skins-basics' %>
     </li>
   </ul>
-
-  <fieldset>
-    <dl>
-      <dt><%= f.label :skin_id, ts('Your site skin')%> <%= link_to_help 'skins-basics' %>:</dt>
-      <dd>
-        <span class="actions"><%= link_to ts('Public Site Skins'), skins_path %></span>
-        <%= f.select :skin_id, @available_skins.collect{|s| [s.title, s.id]} %>
-      </dd>
-
-      <dt><%= f.label :time_zone, ts('Your time zone: ')%></dt>
-      <dd><%= f.time_zone_select :time_zone, nil, :default => Time.zone.name %></dd>
-
-      <dt><%= f.label :work_title_format, ts('Browser page title format')  %> <%= link_to_help 'work_title_format' %>:</dt>
-      <dd><%= f.text_field :work_title_format %></dd>
-    </dl>
-  </fieldset>
+</fieldset>
+<fieldset>
+  <dl>
+    <dt><%= f.label :skin_id, ts('Your site skin') %> <%= link_to_help 'skins-basics' %>:</dt>
+    <dd>
+      <span class="actions"><%= link_to ts('Public Site Skins'), skins_path %></span>
+      <%= f.select :skin_id, @available_skins.collect{|s| [s.title, s.id]} %>
+    </dd>
+
+    <dt><%= f.label :time_zone, ts('Your time zone: ') %></dt>
+    <dd><%= f.time_zone_select :time_zone, nil, :default => Time.zone.name %></dd>
+
+    <% if Rails.env.test? || Rails.env.development? || $rollout.active?(:set_locale_preference, @user) %>
+      <dt><%= f.label :preferred_locale, ts('Your locale')%> <%= link_to_help 'locale-preferences' %></dt>
+      <dd><%= f.select :preferred_locale, @available_locales.collect{|locale| [locale.name, locale.id]}, :default => @preference.preferred_locale %></dd>
+    <% end %>
+
+    <dt><%= f.label :work_title_format, ts('Browser page title format') %> <%= link_to_help 'work_title_format' %>:</dt>
+    <dd><%= f.text_field :work_title_format %></dd>
+  </dl>
 </fieldset>
 
 <fieldset>