X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/793b39c86e9583467f1cbc41f8b1a4677d079f23..8830e06ad0b466c40747540b5122e6825114a90a:/apps/wiki/models.py

diff --git a/apps/wiki/models.py b/apps/wiki/models.py
index 66f8a288..9eb77a5c 100644
--- a/apps/wiki/models.py
+++ b/apps/wiki/models.py
@@ -6,20 +6,19 @@
 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")
 
 
-RE_TRIM_BEGIN = re.compile("^<!-- TRIM_BEGIN -->$", re.M)
-RE_TRIM_END = re.compile("^<!-- TRIM_END -->$", re.M)
-
-
 class Book(models.Model):
     """ A document edited on the wiki """
 
@@ -29,6 +28,12 @@ class Book(models.Model):
 
     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']
@@ -38,6 +43,14 @@ class Book(models.Model):
     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):
         """
@@ -46,47 +59,89 @@ class Book(models.Model):
         """
         instance = cls(*args, **kwargs)
         instance.save()
-        instance.chunk_set.all()[0].doc.commit(author=creator, text=text)
+        instance[0].commit(author=creator, text=text)
         return instance
 
-    @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 __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 materialize(self):
+    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 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.
+            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.
         """
-        texts = []
-        trim_begin = False
-        text = ''
-        for chunk in self.chunk_set.all():
-            next_text = chunk.doc.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)
+        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):
@@ -96,14 +151,13 @@ class Book(models.Model):
 models.signals.post_save.connect(Book.listener_create, sender=Book)
 
 
-class Chunk(models.Model):
+class Chunk(dvcs_models.Document):
     """ An editable chunk of text. Every Book text is divided into chunks. """
 
-    book = models.ForeignKey(Book)
+    book = models.ForeignKey(Book, editable=False)
     number = models.IntegerField()
     slug = models.SlugField()
     comment = models.CharField(max_length=255)
-    doc = models.ForeignKey(dvcs_models.Document, editable=False, unique=True, null=True)
 
     class Meta:
         unique_together = [['book', 'number'], ['book', 'slug']]
@@ -112,10 +166,8 @@ class Chunk(models.Model):
     def __unicode__(self):
         return "%d-%d: %s" % (self.book_id, self.number, self.comment)
 
-    def save(self, *args, **kwargs):
-        if self.doc is None:
-            self.doc = dvcs_models.Document.objects.create()
-        super(Chunk, self).save(*args, **kwargs)
+    def get_absolute_url(self):
+        return reverse("wiki_editor", args=[self.book.slug, self.slug])
 
     @classmethod
     def get(cls, slug, chunk=None):
@@ -126,57 +178,30 @@ class Chunk(models.Model):
 
     def pretty_name(self):
         return "%s, %s (%d/%d)" % (self.book.title, self.comment, 
-                self.number, self.book.chunk_set.count())
-
-
-
-
-'''
-from wiki import settings, constants
-from slughifi import slughifi
-
-from django.http import Http404
-
-
+                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
 
-class Document(object):
+    def list_html(self):
+        _list_html = render_to_string('wiki/chunk_list_item.html',
+                {'chunk': self})
+        return mark_safe(_list_html)
 
-    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)
-
-        result['gallery'] = gallery
-        return result
-
-    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)