+++ /dev/null
-# -*- coding: utf-8 -*-
-#
-# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-from django.conf import settings
-from django.db import models
-from django.db.utils import IntegrityError
-from django.template.loader import render_to_string
-from django.utils.translation import ugettext_lazy as _
-from catalogue.helpers import cached_in_field
-from catalogue.managers import VisibleManager
-from catalogue.tasks import refresh_instance
-from dvcs import models as dvcs_models
-
-
-class Chunk(dvcs_models.Document):
- """ An editable chunk of text. Every Book text is divided into chunks. """
- REPO_PATH = settings.CATALOGUE_REPO_PATH
-
- book = models.ForeignKey('Book', editable=False, verbose_name=_('book'))
- number = models.IntegerField(_('number'))
- slug = models.SlugField(_('slug'))
- title = models.CharField(_('title'), max_length=255, blank=True)
-
- # cache
- _short_html = models.TextField(null=True, blank=True, editable=False)
- _hidden = models.NullBooleanField(editable=False)
- _changed = models.NullBooleanField(editable=False)
-
- # managers
- objects = models.Manager()
- visible_objects = VisibleManager()
-
- class Meta:
- app_label = 'catalogue'
- unique_together = [['book', 'number'], ['book', 'slug']]
- ordering = ['number']
- verbose_name = _('chunk')
- verbose_name_plural = _('chunks')
- permissions = [('can_pubmark', 'Can mark for publishing')]
-
- # Representing
- # ============
-
- def __unicode__(self):
- return "%d:%d: %s" % (self.book_id, self.number, self.title)
-
- @models.permalink
- def get_absolute_url(self):
- return ("wiki_editor", [self.book.slug, self.slug])
-
- def pretty_name(self, book_length=None):
- title = self.book.title
- if self.title:
- title += ", %s" % self.title
- if book_length > 1:
- title += " (%d/%d)" % (self.number, book_length)
- return title
-
-
- # Creating and manipulation
- # =========================
-
- def split(self, slug, title='', adjust_slug=False, **kwargs):
- """ Create an empty chunk after this one """
- self.book.chunk_set.filter(number__gt=self.number).update(
- number=models.F('number')+1)
- new_chunk = None
- while not new_chunk:
- new_slug = self.book.make_chunk_slug(slug)
- try:
- new_chunk = self.book.chunk_set.create(number=self.number+1,
- slug=new_slug[:50], title=title[:255], **kwargs)
- except IntegrityError:
- pass
- return new_chunk
-
- @classmethod
- def get(cls, book_slug, chunk_slug=None):
- if chunk_slug is None:
- return cls.objects.get(book__slug=book_slug, number=1)
- else:
- return cls.objects.get(book__slug=book_slug, slug=chunk_slug)
-
-
- # State & cache
- # =============
-
- def new_publishable(self):
- change = self.publishable()
- if not change:
- return False
- return change.publish_log.exists()
-
- def is_changed(self):
- if self.head is None:
- return False
- return not self.head.publishable
- changed = cached_in_field('_changed')(is_changed)
-
- def is_hidden(self):
- return self.book.hidden()
- hidden = cached_in_field('_hidden')(is_hidden)
-
- @cached_in_field('_short_html')
- def short_html(self):
- return render_to_string(
- 'catalogue/book_list/chunk.html', {'chunk': self})
-
- def touch(self):
- update = {
- "_changed": self.is_changed(),
- "_hidden": self.is_hidden(),
- "_short_html": None,
- }
- Chunk.objects.filter(pk=self.pk).update(**update)
- refresh_instance(self)
-
- def refresh(self):
- """This should be done offline."""
- self.changed
- self.hidden
- self.short_html