Adds Tolk gem for i18n web interface

Closes #793

Gemfile

@@ -53,6 +53,7 @@ gem 'pg_search'
 
 gem 'ahoy_matey', '~> 1.2.1'
 gem 'groupdate'   # group temporary data
+gem 'tolk' # Web interface for translations
 
 gem 'browser'
 gem 'turnout'

Gemfile.lock

@@ -344,6 +344,7 @@ GEM
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
     ruby-progressbar (1.7.5)
+    safe_yaml (1.0.4)
     sass (3.4.21)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
@@ -397,6 +398,9 @@ GEM
     thread_safe (0.3.5)
     tilt (2.0.2)
     tins (1.6.0)
+    tolk (1.9.3)
+      rails (>= 4.0, < 4.3)
+      safe_yaml (>= 0.8.6)
     turbolinks (2.5.3)
       coffee-rails
     turnout (2.2.1)
@@ -496,6 +500,7 @@ DEPENDENCIES
   social-share-button!
   spring
   spring-commands-rspec
+  tolk
   turbolinks
   turnout
   uglifier (>= 1.3.0)

config/initializers/tolk.rb

@@ -0,0 +1,25 @@
+# encoding: utf-8
+
+# Tolk config file. Generated on January 14, 2016 12:09
+# See github.com/tolk/tolk for more informations
+
+Tolk.config do |config|
+
+  # If you need to add a mapping do it like this :
+  # May we suggest you use http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
+  # config.mapping['en-AU']   = 'English (Australia)'
+  # config.mapping['es-MX']   = 'Spanish (Mexico)'
+  # config.mapping['fr-ES']   = 'Frañol !'
+  # config.mapping['is']      = 'Icelandic'
+  # config.mapping['vi']      = 'Vietnamese'
+
+  # Master source of strings to be translated
+  config.primary_locale_name = 'en'
+end
+
+Tolk::ApplicationController.authenticator = proc {
+  authenticate_or_request_with_http_basic do |username, password|
+    username == Rails.application.secrets.translate_username &&
+      password == Rails.application.secrets.translate_password
+  end
+}

config/routes.rb

@@ -280,6 +280,8 @@ Rails.application.routes.draw do
     mount LetterOpenerWeb::Engine, at: "/letter_opener"
   end
 
+  mount Tolk::Engine => '/translate', :as => 'tolk'
+
   # static pages
 
   get '/blog' => redirect("http://diario.madrid.es/participa/")

config/secrets.yml.example

@@ -33,9 +33,12 @@ production: &production
   google_oauth2_key: ""
   google_oauth2_secret: ""
 
+  translate_username: ""
+  translate_password:  ""
+
   rollbar_server_token: ""
   server_name: ""
 
 preproduction:
   server_name: ""
-  <<: *production
+  <<: *production

db/migrate/20160114110933_create_tolk_tables.rb

@@ -0,0 +1,38 @@
+class CreateTolkTables < ActiveRecord::Migration
+  def self.up
+    create_table :tolk_locales do |t|
+      t.string   :name
+      t.datetime :created_at
+      t.datetime :updated_at
+    end
+
+    add_index :tolk_locales, :name, :unique => true
+
+    create_table :tolk_phrases do |t|
+      t.text     :key
+      t.datetime :created_at
+      t.datetime :updated_at
+    end
+
+    create_table :tolk_translations do |t|
+      t.integer  :phrase_id
+      t.integer  :locale_id
+      t.text     :text
+      t.text     :previous_text
+      t.boolean  :primary_updated, :default => false
+      t.datetime :created_at
+      t.datetime :updated_at
+    end
+
+    add_index :tolk_translations, [:phrase_id, :locale_id], :unique => true
+  end
+
+  def self.down
+    remove_index :tolk_translations, :column => [:phrase_id, :locale_id]
+    remove_index :tolk_locales, :column => :name
+
+    drop_table :tolk_translations
+    drop_table :tolk_phrases
+    drop_table :tolk_locales
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160108133501) do
+ActiveRecord::Schema.define(version: 20160114110933) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -323,6 +323,32 @@ ActiveRecord::Schema.define(version: 20160108133501) do
   add_index "tags", ["proposals_count"], name: "index_tags_on_proposals_count", using: :btree
   add_index "tags", ["spending_proposals_count"], name: "index_tags_on_spending_proposals_count", using: :btree
 
+  create_table "tolk_locales", force: :cascade do |t|
+    t.string   "name"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "tolk_locales", ["name"], name: "index_tolk_locales_on_name", unique: true, using: :btree
+
+  create_table "tolk_phrases", force: :cascade do |t|
+    t.text     "key"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  create_table "tolk_translations", force: :cascade do |t|
+    t.integer  "phrase_id"
+    t.integer  "locale_id"
+    t.text     "text"
+    t.text     "previous_text"
+    t.boolean  "primary_updated", default: false
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "tolk_translations", ["phrase_id", "locale_id"], name: "index_tolk_translations_on_phrase_id_and_locale_id", unique: true, using: :btree
+
   create_table "users", force: :cascade do |t|
     t.string   "email",                                default: ""
     t.string   "encrypted_password",                   default: "",    null: false