title: What is the better way to convert abrreviation language into full ( en -> English ) in Rails?
body: <p>I need to make full language name from abbreviation.</p>
  
  <p>I tried to make it using plain way (not working)</p>
  
  <pre><code>def long(lang)
   if lang == "en"
    lang == "English"
   elsif lang == "ru"
    lang == "Russian"
   end
   ...
  end
  </code></pre>
  
  <p>What is better way to do this ?</p>