{% set ads = createModel('Ads','ads').findAd(slug) %}
{% if ads.isBanner() == true %}
    {% set image = service('image.library').getRelatedImage(ads.id,'ads') %} 
    <a class="{{ image_link_class }}" href="{{ ads.getLinkUrl() }}">
        <img src="{{ url(image.src) }}" class="{{ image_class }}">
    </a>
{% else %}
    {{ ads.getCode() }}   
    {% if placeholder is not empty %}
        <img src="{{ template_url }}images/{{ placeholder }}">
    {% endif %}
{% endif %}