Add an i18n functionality to change language using a dropdown in real…

… time. (#340)

Demonstrates use of i18n (internationalization) with React on Rails.

Docs: https://github.com/shakacode/react_on_rails/blob/master/docs/basics/i18n.md

Relevant PRs from React on Rails:
* shakacode/react_on_rails#642
* shakacode/react_on_rails#717

.gitignore

@@ -33,3 +33,7 @@ vendor/ruby
 .idea
 
 spec/examples.txt
+
+# Ignore i18n-js
+client/app/libs/i18n/translations.js
+client/app/libs/i18n/default.js

.travis.yml

@@ -29,7 +29,8 @@ install:
   - npm install npm@latest -g
   - npm --version
   - npm install
-  - npm run build:client && npm run build:server
+  - rake react_on_rails:locale
+  - cd client && npm run build:test
   - rake db:setup
 
 # Tip: No need to run xvfb if running headless testing. However, we're going to start with

Gemfile

@@ -38,7 +38,7 @@ gem "sdoc", group: :doc
 # Use Rails Html Sanitizer for HTML sanitization
 gem "rails-html-sanitizer"
 
-gem "react_on_rails", "~> 6.1"
+gem "react_on_rails", "~> 6.7.1"
 
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
 # mini_racer is probably faster than therubyracer

Gemfile.lock

@@ -1,39 +1,39 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.0.0.1)
-      actionpack (= 5.0.0.1)
+    actioncable (5.0.1)
+      actionpack (= 5.0.1)
       nio4r (~> 1.2)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      actionview (= 5.0.0.1)
-      activejob (= 5.0.0.1)
+    actionmailer (5.0.1)
+      actionpack (= 5.0.1)
+      actionview (= 5.0.1)
+      activejob (= 5.0.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.0.0.1)
-      actionview (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    actionpack (5.0.1)
+      actionview (= 5.0.1)
+      activesupport (= 5.0.1)
       rack (~> 2.0)
       rack-test (~> 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.0.0.1)
-      activesupport (= 5.0.0.1)
+    actionview (5.0.1)
+      activesupport (= 5.0.1)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (5.0.0.1)
-      activesupport (= 5.0.0.1)
+    activejob (5.0.1)
+      activesupport (= 5.0.1)
       globalid (>= 0.3.6)
-    activemodel (5.0.0.1)
-      activesupport (= 5.0.0.1)
-    activerecord (5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    activemodel (5.0.1)
+      activesupport (= 5.0.1)
+    activerecord (5.0.1)
+      activemodel (= 5.0.1)
+      activesupport (= 5.0.1)
       arel (~> 7.0)
-    activesupport (5.0.0.1)
+    activesupport (5.0.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
@@ -50,7 +50,7 @@ GEM
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     brakeman (3.4.1)
-    builder (3.2.2)
+    builder (3.2.3)
     bundler-audit (0.5.0)
       bundler (~> 1.2)
       thor (~> 0.18)
@@ -82,7 +82,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    concurrent-ruby (1.0.2)
+    concurrent-ruby (1.0.5)
     connection_pool (2.2.1)
     coveralls (0.8.15)
       json (>= 1.8, < 3)
@@ -109,7 +109,7 @@ GEM
       railties (>= 3.0.0)
     globalid (0.3.7)
       activesupport (>= 4.1.0)
-    i18n (0.7.0)
+    i18n (0.8.1)
     interception (0.5)
     io-like (0.3.0)
     jbuilder (2.6.0)
@@ -134,10 +134,10 @@ GEM
     mini_portile2 (2.1.0)
     mini_racer (0.1.7)
       libv8 (~> 5.3)
-    minitest (5.9.1)
+    minitest (5.10.1)
     multi_json (1.12.1)
     nio4r (1.2.1)
-    nokogiri (1.6.8.1)
+    nokogiri (1.7.0.1)
       mini_portile2 (~> 2.1.0)
     parser (2.3.2.0)
       ast (~> 2.2)
@@ -165,45 +165,44 @@ GEM
     pry-stack_explorer (0.4.9.2)
       binding_of_caller (>= 0.7)
       pry (>= 0.9.11)
-    public_suffix (2.0.4)
+    public_suffix (2.0.5)
     puma (3.6.2)
     rack (2.0.1)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (5.0.0.1)
-      actioncable (= 5.0.0.1)
-      actionmailer (= 5.0.0.1)
-      actionpack (= 5.0.0.1)
-      actionview (= 5.0.0.1)
-      activejob (= 5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activerecord (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    rails (5.0.1)
+      actioncable (= 5.0.1)
+      actionmailer (= 5.0.1)
+      actionpack (= 5.0.1)
+      actionview (= 5.0.1)
+      activejob (= 5.0.1)
+      activemodel (= 5.0.1)
+      activerecord (= 5.0.1)
+      activesupport (= 5.0.1)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.0.1)
+      railties (= 5.0.1)
       sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.1)
+    rails-dom-testing (2.0.2)
       activesupport (>= 4.2.0, < 6.0)
-      nokogiri (~> 1.6.0)
+      nokogiri (~> 1.6)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
+    railties (5.0.1)
+      actionpack (= 5.0.1)
+      activesupport (= 5.0.1)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.1.0)
+    rainbow (2.2.1)
     rake (11.3.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
     rdoc (4.3.0)
-    react_on_rails (6.1.2)
+    react_on_rails (6.7.1)
       addressable
       connection_pool
       execjs (~> 2.5)
-      foreman
       rails (>= 3.2)
       rainbow (~> 2.1)
     redis (3.3.0)
@@ -265,7 +264,7 @@ GEM
       activesupport (>= 4.2)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
-    sprockets (3.7.0)
+    sprockets (3.7.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     sprockets-rails (3.2.0)
@@ -274,8 +273,8 @@ GEM
       sprockets (>= 3.0.0)
     term-ansicolor (1.4.0)
       tins (~> 1.0)
-    thor (0.19.1)
-    thread_safe (0.3.5)
+    thor (0.19.4)
+    thread_safe (0.3.6)
     tilt (2.0.5)
     tins (1.12.0)
     tzinfo (1.2.2)
@@ -289,7 +288,7 @@ GEM
       debug_inspector
       railties (>= 5.0)
     websocket (1.2.3)
-    websocket-driver (0.6.4)
+    websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.2)
     xpath (2.0.0)
@@ -330,7 +329,7 @@ DEPENDENCIES
   rails
   rails-html-sanitizer
   rainbow
-  react_on_rails (~> 6.1)
+  react_on_rails (~> 6.7.1)
   redis
   rspec-rails (~> 3)
   rspec-retry

Procfile.dev

@@ -7,7 +7,7 @@
 rails: REACT_ON_RAILS_ENV=HOT rails s -b 0.0.0.0
 
 # Run the hot reload server for client development
-hot-assets: sh -c 'rm app/assets/webpack/* || true && HOT_RAILS_PORT=3500 npm run hot-assets'
+hot-assets: sh -c 'rm app/assets/webpack/* || true && bundle exec rake react_on_rails:locale && HOT_RAILS_PORT=3500 npm run hot-assets'
 
 # Render static client assets
 rails-static-client-assets: sh -c 'npm run build:dev:client'

Procfile.hot

@@ -6,7 +6,7 @@
 rails: REACT_ON_RAILS_ENV=HOT rails s -b 0.0.0.0
 
 # Run the hot reload server for client development
-hot-assets: sh -c 'rm app/assets/webpack/* || true && HOT_RAILS_PORT=3500 npm run hot-assets'
+hot-assets: sh -c 'rm app/assets/webpack/* || true && bundle exec rake react_on_rails:locale && HOT_RAILS_PORT=3500 npm run hot-assets'
 
 # Keep the JS fresh for server rendering. Remove if not server rendering
 rails-server-assets: sh -c 'npm run build:dev:server'

Procfile.spec

@@ -3,7 +3,7 @@
 # in rails_helper.rb.
 
 # Build client assets, watching for changes.
-rails-client-assets: sh -c 'npm run build:dev:client'
+rails-client-assets: sh -c 'bundle exec rake react_on_rails:locale && npm run build:dev:client'
 
 # Build server assets, watching for changes. Remove if not server rendering.
 rails-server-assets: sh -c 'npm run build:dev:server'

Procfile.static

@@ -2,7 +2,7 @@
 rails: REACT_ON_RAILS_ENV= rails s -b 0.0.0.0
 
 # Build client assets, watching for changes.
-rails-client-assets: rm app/assets/webpack/* || true && npm run build:dev:client
+rails-client-assets: rm app/assets/webpack/* || true && bundle exec rake react_on_rails:locale && npm run build:dev:client
 
 # Build server assets, watching for changes. Remove if not server rendering.
 rails-server-assets: npm run build:dev:server

Procfile.static.trace

@@ -2,7 +2,7 @@
 rails: TRACE_REACT_ON_RAILS=TRUE rails s -b 0.0.0.0
 
 # Build client assets, watching for changes.
-rails-client-assets: npm run build:dev:client
+rails-client-assets: bundle exec rake react_on_rails:locale && npm run build:dev:client
 
 # Build server assets, watching for changes. Remove if not server rendering.
 rails-server-assets: npm run build:dev:server

README.md

@@ -92,6 +92,7 @@ You can see this tutorial live here: [http://reactrails.com/](http://reactrails.
 - Enabling the use of npm modules and [Babel](https://babeljs.io/) with a Rails application using [Webpack](https://webpack.github.io/).
 - Easily enable retrofitting such a JS framework into an existing Rails app. You don't need a brand new single page app!
 - Example setting up Ruby and JavaScript linting in a real project, with corresponding CI rake tasks.
+- Enabling the i18n functionality with [react-intl](https://github.com/yahoo/react-intl).
 
 ### Technologies involved
 

client/.eslintignore

@@ -1 +1,4 @@
 node_modules
+
+app/libs/i18n/translations.js
+app/libs/i18n/default.js

client/app/bundles/comments/actions/commentsActionCreators.js

@@ -71,3 +71,10 @@ export function submitComment(comment) {
     );
   };
 }
+
+export function setLocale(locale) {
+  return {
+    type: actionTypes.SET_LOCALE,
+    locale,
+  };
+}