title: Dynamic ElasticSearch mapping using Elastic4s
body: <p>I have a document that I want to index on elasticSearch, this document contains some dynamic keys that I can not know in advance, like "spanish" or "french" in the following example </p>
  
  <pre><code>"contents": {
      "title": {
          "spanish": "Hola amigos",
          "french" : "Bonjour les amis"
      }
  }
  </code></pre>
  
  <p>I'm using the elastic4s DSL in order to make my mapping (<a href="https://github.com/sksamuel/elastic4s/blob/master/guide/createindex.md">Via the createIndex DSL</a>), but I can not find how to create, with this library, a dynamic mapping based on the "match" option ( like suggested <a href="http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-root-object-type.html">here</a>), in order to specify a different analyzer for each language stored under the path contents.title.</p>
  
  <p>Any track please ? :-)</p>