I have a Django Table with Crispy Filter and I would like to filter in Data table based on Category. But I am getting FieldError. I tried to define my filter field by this way in filters.py: kategorie = django_filters.CharFilter(label="Kategorie", field_name="ucet__cislo__kategorie__jmeno", lookup_expr=’icontains’) And I have following structure of models in models.py: class Data(models.Model): ucet =… Read More Django FieldError: Unsupported lookup 'kategorie' for IntegerField or join on the field not permitted