title: How to set a String in a Option[String]?
body: <p>When I'm trying to affect a value of type String in a field of type Option[String] I get the following error :</p>
  
  <pre><code>type mismatch; found : String required: Option[String]
  </code></pre>
  
  <p>How can I affect value <code>myValue:String</code> into field <code>myField:Option[String]</code> ?</p>