{% set items = createModel(model,extension) %}

{% if uuid is not empty %} 
    {% set relation_model = createModel(items.getRelationModelClass(),extension).findById(uuid) %}
    {% set id = relation_model.id %}
{% endif %}
{% set items = items.getItemsQuery(id) %}

<div class="ui label {{ class }}">
    <i class="icon linkify"></i>
    {{ items.count() }}
</div>