Merge branch 'img-playground' of ssh://epsilon.fnp/home/rczajka/workspace/redakcja...
[redakcja.git] / apps / wiki / models.py
index 4dc7017..c539908 100644 (file)
 # 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)
-
-    _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)
-
-    @staticmethod
-    def publish_tag():
-        return dvcs_models.Tag.get('publish')
-
-    def materialize(self, tag=None):
-        """ 
-            Get full text of the document compiled from chunks.
-            Takes the current versions of all texts
-            or versions most recently tagged by a given tag.
-        """
-        if tag:
-            changes = [chunk.last_tagged(tag) 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)
-
-    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):
-        return "%s, %s (%d/%d)" % (self.book.title, self.comment, 
-                self.number, len(self.book))
-
-    def publishable(self):
-        return self.last_tagged(Book.publish_tag())
-
-    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
-
-    @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)