X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/bb551d54ea65621cae28c6acbfd91b22dc441dae..4395564bb09e6b7d74cae3421f6342dd546b5619:/apps/wiki/models.py diff --git a/apps/wiki/models.py b/apps/wiki/models.py index d35b3c40..c539908d 100644 --- a/apps/wiki/models.py +++ b/apps/wiki/models.py @@ -3,209 +3,13 @@ # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later. # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # -import itertools -import re - -from django.core.urlresolvers import reverse from django.db import models -from django.utils.safestring import mark_safe from django.utils.translation import ugettext_lazy as _ -from django.template.loader import render_to_string - -from dvcs import models as dvcs_models -from wiki.xml_tools import compile_text import logging logger = logging.getLogger("fnp.wiki") -class Book(models.Model): - """ A document edited on the wiki """ - - title = models.CharField(_('title'), max_length=255) - slug = models.SlugField(_('slug'), max_length=128, unique=True) - gallery = models.CharField(_('scan gallery name'), max_length=255, blank=True) - - parent = models.ForeignKey('self', null=True, blank=True, verbose_name=_('parent'), related_name="children") - parent_number = models.IntegerField(_('parent number'), null=True, blank=True, db_index=True) - last_published = models.DateTimeField(null=True, editable=False) - - _list_html = models.TextField(editable=False, null=True) - - class NoTextError(BaseException): - pass - - class Meta: - ordering = ['parent_number', 'title'] - verbose_name = _('book') - verbose_name_plural = _('books') - - def __unicode__(self): - return self.title - - def get_absolute_url(self): - return reverse("wiki_book", args=[self.slug]) - - def save(self, reset_list_html=True, *args, **kwargs): - if reset_list_html: - self._list_html = None - return super(Book, self).save(*args, **kwargs) - - @classmethod - def create(cls, creator=None, text=u'', *args, **kwargs): - """ - >>> Book.create(slug='x', text='abc').materialize() - 'abc' - """ - instance = cls(*args, **kwargs) - instance.save() - instance[0].commit(author=creator, text=text) - return instance - - def __iter__(self): - return iter(self.chunk_set.all()) - - def __getitem__(self, chunk): - return self.chunk_set.all()[chunk] - - def __len__(self): - return self.chunk_set.count() - - def list_html(self): - if self._list_html is None: - print 'rendering', self.title - self._list_html = render_to_string('wiki/document_list_item.html', - {'book': self}) - self.save(reset_list_html=False) - return mark_safe(self._list_html) - - def materialize(self, publishable=True): - """ - Get full text of the document compiled from chunks. - Takes the current versions of all texts - or versions most recently tagged for publishing. - """ - if publishable: - changes = [chunk.publishable() for chunk in self] - else: - changes = [chunk.head for chunk in self] - if None in changes: - raise self.NoTextError('Some chunks have no available text.') - return compile_text(change.materialize() for change in changes) - - def publishable(self): - if not len(self): - return False - for chunk in self: - if not chunk.publishable(): - return False - return True - - def make_chunk_slug(self, proposed): - """ - Finds a chunk slug not yet used in the book. - """ - slugs = set(c.slug for c in self) - i = 1 - new_slug = proposed - while new_slug in slugs: - new_slug = "%s-%d" % (proposed, i) - i += 1 - return new_slug - - def append(self, other): - number = self[len(self) - 1].number + 1 - single = len(other) == 1 - for chunk in other: - # move chunk to new book - chunk.book = self - chunk.number = number - - # try some title guessing - if other.title.startswith(self.title): - other_title_part = other.title[len(self.title):].lstrip(' /') - else: - other_title_part = other.title - - if single: - # special treatment for appending one-parters: - # just use the guessed title and original book slug - chunk.comment = other_title_part - if other.slug.startswith(self.slug): - chunk_slug = other.slug[len(self.slug):].lstrip('-_') - else: - chunk_slug = other.slug - chunk.slug = self.make_chunk_slug(chunk_slug) - else: - chunk.comment = "%s, %s" % (other_title_part, chunk.comment) - chunk.slug = self.make_chunk_slug(chunk.slug) - chunk.save() - number += 1 - other.delete() - - @staticmethod - def listener_create(sender, instance, created, **kwargs): - if created: - instance.chunk_set.create(number=1, slug='1') - -models.signals.post_save.connect(Book.listener_create, sender=Book) - - -class Chunk(dvcs_models.Document): - """ An editable chunk of text. Every Book text is divided into chunks. """ - - book = models.ForeignKey(Book, editable=False) - number = models.IntegerField() - slug = models.SlugField() - comment = models.CharField(max_length=255, blank=True) - - class Meta: - unique_together = [['book', 'number'], ['book', 'slug']] - ordering = ['number'] - - def __unicode__(self): - return "%d-%d: %s" % (self.book_id, self.number, self.comment) - - def get_absolute_url(self): - return reverse("wiki_editor", args=[self.book.slug, self.slug]) - - @classmethod - def get(cls, slug, chunk=None): - if chunk is None: - return cls.objects.get(book__slug=slug, number=1) - else: - return cls.objects.get(book__slug=slug, slug=chunk) - - def pretty_name(self, book_length=None): - title = self.book.title - if self.comment: - title += ", %s" % self.comment - if book_length > 1: - title += " (%d/%d)" % (self.number, book_length) - return title - - def split(self, slug, comment='', creator=None): - """ Create an empty chunk after this one """ - self.book.chunk_set.filter(number__gt=self.number).update( - number=models.F('number')+1) - new_chunk = self.book.chunk_set.create(number=self.number+1, - creator=creator, slug=slug, comment=comment) - return new_chunk - - def list_html(self): - _list_html = render_to_string('wiki/chunk_list_item.html', - {'chunk': self}) - return mark_safe(_list_html) - - @staticmethod - def listener_saved(sender, instance, created, **kwargs): - if instance.book: - # save book so that its _list_html is reset - instance.book.save() - -models.signals.post_save.connect(Chunk.listener_saved, sender=Chunk) - - class Theme(models.Model): name = models.CharField(_('name'), max_length=50, unique=True)