title: How to use the ChoiceListInterface in Symfony 2?
body: <p>I'd like to display a dynamic list of checkboxes in a form.</p>
  
  <p>So far, I built a form embedding a static list of checkboxes, and I created a Tag entity for different values in different languages and populated the database. I'd like to replace the static checkboxes by a dynamic list based on the Tag entity.</p>
  
  <p>The <a href="http://symfony.com/doc/2.0/reference/forms/types/choice.html#choice-list" rel="nofollow">documentation</a> says I should use the ChoiceListInterface. But it is really poorly documented. Would you have an example or a global logic explanation to help me ?</p>