{% for val in listArtists %}
    <a href="Artist?{{ val.artistId }}" id="item-{{ val.artistId }}"
       class="list-group-item {{ val.onlineCwg==0 ? 'bg-stripped' : '' }} {{ selectedId==val.ArtistId ? 'active' : '' }} ">{{ val.firstname() }} {{ val.lastname }}</a>
{% endfor %}