1 # -*- coding: utf-8 -*-
3 # This file is part of MIL/PEER, licensed under GNU Affero GPLv3 or later.
4 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
7 from django.utils.functional import lazy
8 from django_filters.filters import ModelMultipleChoiceFilter
10 from catalogue.models import Document, Category
13 def tag_filter(dc_tag):
14 category = Category.objects.get(dc_tag=dc_tag)
15 return ModelMultipleChoiceFilter(
16 queryset=category.tag_set.all(), label=lazy(lambda: category.label, unicode)(), method='filter_by_tag')
19 class DocumentFilterSet(django_filters.FilterSet):
20 language = tag_filter('language')
21 license = tag_filter('rights')
22 audience = tag_filter('audience')
28 def filter_by_tag(self, queryset, name, value):
31 return queryset.filter(tags__in=value).distinct()