X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/3d61fc117d9e5274189d16be83d4489cd4b36d7f..f20c260cfc805924834ea7e545ac2a84a4042b28:/apps/wiki/models.py diff --git a/apps/wiki/models.py b/apps/wiki/models.py index 7693da4e..f8c9d258 100644 --- a/apps/wiki/models.py +++ b/apps/wiki/models.py @@ -1,53 +1,166 @@ +# -*- 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. +# +import itertools import re -import vstorage -from vstorage import DocumentNotFound -from wiki import settings - - -class DocumentStorage(object): - def __init__(self, path): - self.vstorage = vstorage.VersionedStorage(path) - - def get(self, name, revision=None): - if revision is None: - text = self.vstorage.page_text(name) + +from django.core.urlresolvers import reverse +from django.db import models +from django.utils.translation import ugettext_lazy as _ + +from dvcs import models as dvcs_models + + +import logging +logger = logging.getLogger("fnp.wiki") + + +RE_TRIM_BEGIN = re.compile("^$", re.M) +RE_TRIM_END = re.compile("^$", re.M) + + +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) + + class Meta: + ordering = ['parent_number', 'title'] + verbose_name = _('book') + verbose_name_plural = _('books') + + def __unicode__(self): + return self.title + + @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() + + @staticmethod + def trim(text, trim_begin=True, trim_end=True): + """ + Cut off everything before RE_TRIM_BEGIN and after RE_TRIM_END, so + that eg. one big XML file can be compiled from many small XML files. + """ + if trim_begin: + text = RE_TRIM_BEGIN.split(text, maxsplit=1)[-1] + if trim_end: + text = RE_TRIM_END.split(text, maxsplit=1)[0] + return text + + def materialize(self): + """ + Get full text of the document compiled from chunks. + Takes the current versions of all texts for now, but it should + be possible to specify a tag or a point in time for compiling. + + First non-empty text's beginning isn't trimmed, + and last non-empty text's end isn't trimmed. + """ + texts = [] + trim_begin = False + text = '' + for chunk in self: + next_text = chunk.materialize() + if not next_text: + continue + if text: + # trim the end, because there's more non-empty text + # don't trim beginning, if `text' is the first non-empty part + texts.append(self.trim(text, trim_begin=trim_begin)) + trim_begin = True + text = next_text + # don't trim the end, because there's no more text coming after `text' + # only trim beginning if it's not still the first non-empty + texts.append(self.trim(text, trim_begin=trim_begin, trim_end=False)) + return "".join(texts) + + @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) + 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) + + 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: - text = self.vstorage.revision_text(name, revision) - return Document(self, name=name, text=text) - - def put(self, document, author, comment, parent): - self.vstorage.save_text(document.name, document.text, author, comment, parent) + 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)) + + + + +''' +from wiki import settings, constants +from slughifi import slughifi - def delete(self, name, author, comment): - self.vstorage.delete_page(name, author, comment) +from django.http import Http404 - def all(self): - return list(self.vstorage.all_pages()) - def _info(self, name): - return self.vstorage.page_meta(name) class Document(object): - META_REGEX = re.compile(r'\s*', re.DOTALL | re.MULTILINE) - - def __init__(self, storage, **kwargs): - self.storage = storage - for attr, value in kwargs.iteritems(): - setattr(self, attr, value) - - def revision(self): - try: - return self.storage._info(self.name)[0] - except DocumentNotFound: - return -1 + 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'): @@ -56,9 +169,32 @@ class Document(object): result[k.strip()] = v.strip() except ValueError: continue - + + gallery = result.get('gallery', slughifi(self.name.replace(' ', '_'))) + + if gallery.startswith('/'): + gallery = os.path.basename(gallery) + + result['gallery'] = gallery return result + def info(self): + return self.storage.vstorage.page_meta(self.name, self.revision) + + + +''' +class Theme(models.Model): + name = models.CharField(_('name'), max_length=50, unique=True) + + class Meta: + ordering = ('name',) + verbose_name = _('theme') + verbose_name_plural = _('themes') + + def __unicode__(self): + return self.name -storage = DocumentStorage(settings.REPOSITORY_PATH) + def __repr__(self): + return "Theme(name=%r)" % self.name