+@register.simple_tag
+def book_tree(book_list, books_by_parent):
+ text = "".join("<li><a href='%s'>%s</a>%s</li>" % (
+ book.get_absolute_url(), book.title, book_tree(books_by_parent.get(book, ()), books_by_parent)
+ ) for book in book_list)
+
+ if text:
+ return "<ol>%s</ol>" % text
+ else:
+ return ''
+
+@register.simple_tag
+def audiobook_tree(book_list, books_by_parent):
+ text = "".join("<li><a class='open-player' href='%s'>%s</a>%s</li>" % (
+ reverse("book_player", args=[book.slug]), book.title, audiobook_tree(books_by_parent.get(book, ()), books_by_parent)
+ ) for book in book_list)
+
+ if text:
+ return "<ol>%s</ol>" % text
+ else:
+ return ''
+
+@register.simple_tag
+def book_tree_texml(book_list, books_by_parent, depth=1):
+ return "".join("""
+ <cmd name='hspace'><parm>%(depth)dem</parm></cmd>%(title)s
+ <spec cat='align' /><cmd name="note"><parm>%(audiences)s</parm></cmd>
+ <spec cat='align' /><cmd name="note"><parm>%(audiobook)s</parm></cmd>
+ <ctrl ch='\\' />
+ %(children)s
+ """ % {
+ "depth": depth,
+ "title": book.title,
+ "audiences": ", ".join(book.audiences_pl()),
+ "audiobook": "audiobook" if book.has_media('mp3') else "",
+ "children": book_tree_texml(books_by_parent.get(book.id, ()), books_by_parent, depth + 1)
+ } for book in book_list)
+
+
+@register.simple_tag
+def book_tree_csv(author, book_list, books_by_parent, depth=1, max_depth=3, delimeter="\t"):
+ def quote_if_necessary(s):
+ try:
+ s.index(delimeter)
+ s.replace('"', '\\"')
+ return '"%s"' % s
+ except ValueError:
+ return s
+
+ return "".join("""%(author)s%(d)s%(preindent)s%(title)s%(d)s%(postindent)s%(audiences)s%(d)s%(audiobook)s
+%(children)s""" % {
+ "d": delimeter,
+ "preindent": delimeter * (depth - 1),
+ "postindent": delimeter * (max_depth - depth),
+ "depth": depth,
+ "author": quote_if_necessary(author.name),
+ "title": quote_if_necessary(book.title),
+ "audiences": ", ".join(book.audiences_pl()),
+ "audiobook": "audiobook" if book.has_media('mp3') else "",
+ "children": book_tree_csv(author, books_by_parent.get(book.id, ()), books_by_parent, depth + 1)
+ } for book in book_list)
+
+@register.simple_tag
+def all_editors(extra_info):
+ editors = []
+ if 'editors' in extra_info:
+ editors += extra_info['editors']
+ if 'technical_editors' in extra_info:
+ editors += extra_info['technical_editors']
+ # support for extra_info-s from librarian<1.2
+ if 'editor' in extra_info:
+ editors.append(extra_info['editor'])
+ if 'technical_editor' in extra_info:
+ editors.append(extra_info['technical_editor'])
+ return ', '.join(
+ ' '.join(p.strip() for p in person.rsplit(',', 1)[::-1])
+ for person in sorted(set(editors)))
+
+