1 # -*- coding: utf-8 -*-
3 # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
4 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
6 from django.conf import settings
7 from django.db import models
8 from django.db.utils import IntegrityError
9 from django.template.loader import render_to_string
10 from django.utils.translation import ugettext_lazy as _
11 from catalogue.helpers import cached_in_field
12 from catalogue.managers import VisibleManager
13 from catalogue.tasks import refresh_instance
14 from dvcs import models as dvcs_models
17 class Chunk(dvcs_models.Document):
18 """ An editable chunk of text. Every Book text is divided into chunks. """
19 REPO_PATH = settings.CATALOGUE_REPO_PATH
21 book = models.ForeignKey('Book', editable=False, verbose_name=_('book'))
22 number = models.IntegerField(_('number'))
23 title = models.CharField(_('title'), max_length=255, blank=True)
24 slug = models.SlugField(_('slug'))
25 gallery_start = models.IntegerField(_('gallery start'), null=True, blank=True)
28 _short_html = models.TextField(null=True, blank=True, editable=False)
29 _hidden = models.NullBooleanField(editable=False)
30 _changed = models.NullBooleanField(editable=False)
33 objects = models.Manager()
34 visible_objects = VisibleManager()
37 app_label = 'catalogue'
38 unique_together = [['book', 'number'], ['book', 'slug']]
40 verbose_name = _('chunk')
41 verbose_name_plural = _('chunks')
42 permissions = [('can_pubmark', 'Can mark for publishing')]
47 def __unicode__(self):
48 return "%d:%d: %s" % (self.book_id, self.number, self.title)
51 def get_absolute_url(self):
52 return ("wiki_editor", [self.book.slug, self.slug])
54 def pretty_name(self, book_length=None):
55 title = self.book.title
57 title += ", %s" % self.title
59 title += " (%d/%d)" % (self.number, book_length)
63 # Creating and manipulation
64 # =========================
66 def split(self, slug, title='', **kwargs):
67 """ Create an empty chunk after this one """
68 self.book.chunk_set.filter(number__gt=self.number).update(
69 number=models.F('number')+1)
72 new_slug = self.book.make_chunk_slug(slug)
74 new_chunk = self.book.chunk_set.create(number=self.number+1,
75 slug=new_slug[:50], title=title[:255], **kwargs)
76 except IntegrityError:
81 def get(cls, book_slug, chunk_slug=None):
82 if chunk_slug is None:
83 return cls.objects.get(book__slug=book_slug, number=1)
85 return cls.objects.get(book__slug=book_slug, slug=chunk_slug)
91 def new_publishable(self):
92 change = self.publishable()
95 return change.publish_log.exists()
100 return not self.head.publishable
101 changed = cached_in_field('_changed')(is_changed)
104 return self.book.hidden()
105 hidden = cached_in_field('_hidden')(is_hidden)
107 @cached_in_field('_short_html')
108 def short_html(self):
109 return render_to_string(
110 'catalogue/book_list/chunk.html', {'chunk': self})
114 "_changed": self.is_changed(),
115 "_hidden": self.is_hidden(),
118 Chunk.objects.filter(pk=self.pk).update(**update)
119 refresh_instance(self)
122 """This should be done offline."""