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Fix #1360806: allow book.smart_update to copy "null" (Unknown) author information to the destination if the destination author and author_sort values are null. There is a small performance hit if the source of the copy is null, which fortunately is rather rare. This change better supports non-null author_sort values associated with null author values.

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This commit is contained in:
Charles Haley 2014-08-24 18:14:59 +02:00
parent a9dab307fb
commit bac30e2e67
1 changed files with 5 additions and 1 deletions
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6
src/calibre/ebooks/metadata/book/base.py
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@ -471,7 +471,11 @@ class Metadata(object):
if hasattr(other, 'title_sort'):
self.title_sort = other.title_sort
if other.authors and other.authors[0] != _('Unknown'):
if other.authors and (other.authors[0] != _('Unknown') or
(not self.authors or (len(self.authors) == 1 and
self.authors[0] == _('Unknown') and
hasattr(self, 'author_sort') and
self.author_sort == _('Unknown')))):
self.authors = list(other.authors)
if hasattr(other, 'author_sort_map'):
self.author_sort_map = dict(other.author_sort_map)