{% macro render_blog_post(post, from_index=false) %}
  <div class="blog-post">
  {% if from_index -%}
    <h2><a href="{{ post|url }}">{{ post.title }}</a></h2>
  {% else -%}
    <h2>{{ post.title }}</h2>
  {% endif -%}
  <p class="meta">
    {% if post.event_start_date != post.event_end_date -%}
      Vom {{ post.event_start_date | dateformat(('d. MMM'), locale=post.alt ) }} bis {{ post.event_end_date | dateformat('long', locale=post.alt) }}.
    {%- else -%}
      Am {{ post.event_start_date | dateformat('long', locale=post.alt) }}.
    {%- endif %}
  </p>
  {% if from_index -%}
    {{ post.preview }}
  {% else -%}
    {{ post.body }}
  {% endif -%}
  </div>
{% endmacro %}