continue to backport old code

app/workers/wow_sidekiq_worker.rb

@@ -0,0 +1,20 @@
+class WowSidekiqWorker
+  include Sidekiq::Worker
+
+  def locales
+    [
+      ['en-us', 'en_US'],
+      ['es-mx', 'es_MX'],
+      ['pt-br', 'pt_BR'],
+      ['de-de', 'de_DE'],
+      ['en-gb', 'en_GB'],
+      ['es-es', 'es_ES'],
+      ['fr-fr', 'fr_FR'],
+      ['it', 'it_IT'],
+      ['ru-ru', 'ru_RU'],
+      ['ko', 'ko_KR'],
+      ['zh-tw', 'zh_TW'],
+      ['zh-cn', 'zh_CN']
+    ]
+  end
+end