tags = list(book.tags.filter(~Q(category='set')))
categories = split_tags(tags)
book_children = book.children.all().order_by('parent_number')
+
+ _book = book
+ parents = []
+ while _book.parent:
+ parents.append(_book.parent)
+ _book = _book.parent
+ parents = reversed(parents)
theme_counter = book.theme_counter
book_themes = models.Tag.objects.filter(pk__in=theme_counter.keys())