{% for type, messages in app.session.flashbag.all() %}
    {% for message in messages %}
        <div class="flash-{{ type }} alert alert-{{type|replace({'error':'danger'})}}  alert-dismissable">
            <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>

            {{ message }}
        </div>
    {% endfor %}
{% endfor %}