-# -*- coding: utf-8 -*-
-# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-from django.conf import settings
-from django.contrib.contenttypes.fields import GenericRelation
-from django.core.urlresolvers import reverse
-from django.db import models
-from django.utils.translation import ugettext_lazy as _
-from newtagging import managers
-from catalogue.models import Tag
-from ssify import flush_ssi_includes
-
-
-class Fragment(models.Model):
- """Represents a themed fragment of a book."""
- text = models.TextField()
- short_text = models.TextField(editable=False)
- anchor = models.CharField(max_length=120)
- book = models.ForeignKey('Book', related_name='fragments')
-
- objects = models.Manager()
- tagged = managers.ModelTaggedItemManager(Tag)
- tags = managers.TagDescriptor(Tag)
- tag_relations = GenericRelation(Tag.intermediary_table_model)
-
- short_html_url_name = 'catalogue_fragment_short'
-
- class Meta:
- ordering = ('book', 'anchor',)
- verbose_name = _('fragment')
- verbose_name_plural = _('fragments')
- app_label = 'catalogue'
-
- def get_absolute_url(self):
- return '%s#m%s' % (reverse('book_text', args=[self.book.slug]), self.anchor)
-
- def get_short_text(self):
- """Returns short version of the fragment."""
- return self.short_text if self.short_text else self.text
-
- def flush_includes(self, languages=True):
- if not languages:
- return
- if languages is True:
- languages = [lc for (lc, _ln) in settings.LANGUAGES]
- flush_ssi_includes([
- template % (self.pk, lang)
- for template in [
- '/katalog/f/%d/short.%s.html',
- '/api/include/fragment/%d.%s.json',
- '/api/include/fragment/%d.%s.xml',
- ]
- for lang in languages
- ])