X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/cbb14d2ed3eb0b72a6c3c68ab93847923e6142f4..a7a2b1c6daaa2266645abc5ee4fac91ce10a4c39:/apps/wiki/models.py diff --git a/apps/wiki/models.py b/apps/wiki/models.py index a9264934..9eb77a5c 100644 --- a/apps/wiki/models.py +++ b/apps/wiki/models.py @@ -3,11 +3,17 @@ # 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") @@ -16,82 +22,186 @@ logger = logging.getLogger("fnp.wiki") class Book(models.Model): """ A document edited on the wiki """ - slug = models.SlugField(_('slug'), max_length=255, unique=True) - title = models.CharField(_('displayed title'), max_length=255, blank=True) - doc = models.ForeignKey(dvcs_models.Document, editable=False) + 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 = ['title'] + 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.doc = dvcs_models.Document.create(creator=creator, text=text) 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 and instance.doc is None: - instance.doc = dvcs_models.Document.objects.create() - instance.save() + 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. """ -''' -from wiki import settings, constants -from slughifi import slughifi - -from django.http import Http404 - + book = models.ForeignKey(Book, editable=False) + number = models.IntegerField() + slug = models.SlugField() + comment = models.CharField(max_length=255) + class Meta: + unique_together = [['book', 'number'], ['book', 'slug']] + ordering = ['number'] + def __unicode__(self): + return "%d-%d: %s" % (self.book_id, self.number, self.comment) -class Document(object): - - def add_tag(self, tag, revision, author): - """ Add document specific tag """ - logger.debug("Adding tag %s to doc %s version %d", tag, self.name, revision) - self.storage.vstorage.add_page_tag(self.name, revision, tag, user=author) - - @property - def plain_text(self): - return re.sub(self.META_REGEX, '', self.text, 1) - - def meta(self): - result = {} - - m = re.match(self.META_REGEX, self.text) - if m: - for line in m.group(1).split('\n'): - try: - k, v = line.split(':', 1) - result[k.strip()] = v.strip() - except ValueError: - continue - - gallery = result.get('gallery', slughifi(self.name.replace(' ', '_'))) - - if gallery.startswith('/'): - gallery = os.path.basename(gallery) + def get_absolute_url(self): + return reverse("wiki_editor", args=[self.book.slug, self.slug]) - result['gallery'] = gallery - return result + @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): + return "%s, %s (%d/%d)" % (self.book.title, self.comment, + self.number, len(self.book)) + + 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) - def info(self): - return self.storage.vstorage.page_meta(self.name, self.revision) + @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)