self.sort_key = sortify(self.title)
- ret = super(Book, self).save(force_insert, force_update)
+ ret = super(Book, self).save(force_insert, force_update, **kwargs)
if reset_short_html:
self.reset_short_html()
for child in self.children.all():
child.parent_cover_changed()
+ def other_versions(self):
+ """Find other versions (i.e. in other languages) of the book."""
+ return type(self).objects.filter(common_slug=self.common_slug).exclude(pk=self.pk)
+
def related_info(self):
"""Keeps info about related objects (tags, media) in cache field."""
if self._related_info is not None:
"""
# get relevant books and their tags
objects = cls.tagged.with_all(tags)
+ parents = objects.filter(html_file='').only('slug')
# eliminate descendants
l_tags = Tag.objects.filter(category='book',
- slug__in=[book.book_tag_slug() for book in objects.iterator()])
- descendants_keys = [book.pk for book in cls.tagged.with_any(l_tags).iterator()]
+ slug__in=[book.book_tag_slug() for book in parents.iterator()])
+ descendants_keys = [book.pk for book in cls.tagged.with_any(l_tags).only('pk').iterator()]
if descendants_keys:
objects = objects.exclude(pk__in=descendants_keys)