'book_children': book.children.all().order_by('parent_number', 'sort_key'),
'active_menu_item': 'books',
'club_form': ScheduleForm() if book.preview else None,
'club': Club.objects.first() if book.preview else None,
'book_children': book.children.all().order_by('parent_number', 'sort_key'),
'active_menu_item': 'books',
'club_form': ScheduleForm() if book.preview else None,
'club': Club.objects.first() if book.preview else None,