{{ book.title }}

{% set got = {} %} {% set all = 1 %} {% for instance in book.instances %} {% if instance.name in got %} {% set x=got.__setitem__(instance.name, got[instance.name]+1) %} {% else %} {% set x=got.__setitem__(instance.name, 1) %} {% endif %} {% set all = loop.index %} {% endfor %} {% for instance, value in got.items() %} {% set result = value/(book.instances|length) %} {% endfor %}