title: Store key,value pair in YAML and use to populate a Rails form :collection?
body: <p>How would one store a list of languages with there language code into a yaml and popuplate a :collection in rails form with?  I now have below example but fails, any suggestions on what would be best option to tackle this problem?</p>
  
  <p><strong>Application.yml:</strong></p>
  
  <pre><code>development:
    language:     [['English', 'en'], ['French', 'fr']]
  
  production:
    language:     [['English', 'en']
  </code></pre>
  
  <p><strong>In rails form:</strong></p>
  
  <pre><code>= f.input :locale, :collection =&gt; APP_CONFIG['languages']
  </code></pre>