ynh_extension_meeo/templates/absences.twig

<div id="accordion" class="panel-group" role="tablist" aria-multiselectable="true">
{% for identifier, group in groups %}
  <div class="panel panel-default">
    <button id="head_{{ identifier }}" class="panel-heading collapsed" data-parent="#accordion" data-target="#{{ identifier }}" data-toggle="collapse" aria-expanded="false">
      <h4 class="panel-title">{{ group['nom'] }}</h4>
    </button>
    <div id="{{ identifier }}" class="panel-collapse collapse in" aria-expanded="false">
      <div class="panel-body">
        {% for entry in group['entries'] %}
        <div>
          <h5>{{ entry['bf_date_debut_evenement'] }}</h5>
          {% if entry['bf_commentaire']|default %}
          <p>{{ entry['bf_commentaire'] }}</p>
          {% endif %}
        </div>
        {% endfor %}
      </div>
    </div>
  </div>
{% endfor %}
</div>