Support for other i18n bundles

app/assets/javascripts/locales/i18n.js

@@ -92,6 +92,24 @@ I18n.isValidNode = function(obj, node, undefined) {
   return obj[node] !== null && obj[node] !== undefined;
 };
 
+function checkExtras(origScope, sep, extras) {
+  if (!extras || extras.length === 0) { return; }
+
+  for (var i=0; i<extras.length; i++) {
+    var messages = extras[i];
+    scope = origScope.split(sep);
+    scope.shift();
+
+    while (messages && scope.length > 0) {
+      currentScope = scope.shift();
+      messages = messages[currentScope];
+    }
+    if (messages) {
+      return messages;
+    }
+  }
+}
+
 I18n.lookup = function(scope, options) {
   options = options || {};
   var lookupInitialScope = scope,
@@ -110,13 +128,20 @@ I18n.lookup = function(scope, options) {
     scope = options.scope.toString() + this.defaultSeparator + scope;
   }
 
-  scope = scope.split(this.defaultSeparator);
+  var origScope = "" + scope;
+
+  scope = origScope.split(this.defaultSeparator);
 
   while (messages && scope.length > 0) {
     currentScope = scope.shift();
     messages = messages[currentScope];
   }
 
+  if (!messages) {
+    messages = checkExtras(origScope, this.defaultSeparator, this.extras);
+  }
+
+
   if (!messages) {
     if (I18n.fallbacks) {
       var fallbacks = this.getFallbacks(locale);
@@ -192,7 +217,9 @@ I18n.interpolate = function(message, options) {
 };
 
 I18n.translate = function(scope, options) {
+
   options = this.prepareOptions(options);
+
   var translation = this.lookup(scope, options);
   // Fallback to the default locale
   if (!translation && this.currentLocale() !== this.defaultLocale && !this.noFallbacks) {

app/controllers/extra_locales_controller.rb

@@ -0,0 +1,31 @@
+class ExtraLocalesController < ApplicationController
+
+  layout :false
+  skip_before_filter :check_xhr, :preload_json
+
+  def show
+    locale_str = I18n.locale.to_s
+    translations = JsLocaleHelper.translations_for(locale_str)
+
+    bundle = params[:bundle]
+    raise Discourse::InvalidAccess.new unless bundle =~ /^[a-z]+$/
+    for_key = translations[locale_str]["#{bundle}_js"] 
+
+
+    if for_key.present?
+      js = <<-JS
+        (function() {
+          if (window.I18n) {
+            window.I18n.extras = window.I18n.extras || [];
+            window.I18n.extras.push(#{for_key.to_json});
+          }
+        })();
+      JS
+    else
+      js = ""
+    end
+
+
+    render text: js, content_type: "application/javascript"
+  end
+end

app/views/layouts/application.html.erb

@@ -30,6 +30,7 @@
     <%= script "application" %>
 
     <%- if staff? %>
+      <script src="/extra-locales/admin"></script>
       <%= script "admin" %>
     <%- end %>