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Implement apply_null

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This commit is contained in:
Kovid Goyal 2016-06-23 22:32:28 +05:30
parent 145432e05a
commit 3d68ac0ff9
1 changed files with 59 additions and 14 deletions
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73
src/calibre/ebooks/metadata/opf3.py
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@ -825,24 +825,69 @@ def get_metadata(stream):
def apply_metadata(root, mi, cover_prefix='', cover_data=None, apply_null=False, update_timestamp=False, force_identifiers=False):
prefixes, refines = read_prefixes(root), read_refines(root)
set_identifiers(root, prefixes, refines, mi.identifiers, force_identifiers=force_identifiers)
set_title(root, prefixes, refines, mi.title, mi.title_sort)
set_languages(root, prefixes, refines, mi.languages)
current_mi = read_metadata(root)
if apply_null:
def ok(x):
return True
else:
def ok(x):
return not mi.is_null(x)
if ok('identifiers'):
set_identifiers(root, prefixes, refines, mi.identifiers, force_identifiers=force_identifiers)
if ok('title'):
set_title(root, prefixes, refines, mi.title, mi.title_sort)
if ok('languages'):
set_languages(root, prefixes, refines, mi.languages)
if ok('book_producer'):
set_book_producers(root, prefixes, refines, (mi.book_producer,))
aus = string_to_authors(mi.author_sort or '')
authors = []
for i, aut in enumerate(mi.authors):
authors.append(Author(aut, aus[i] if i < len(aus) else None))
set_authors(root, prefixes, refines, authors)
set_pubdate(root, prefixes, refines, mi.pubdate)
set_timestamp(root, prefixes, refines, mi.timestamp)
set_comments(root, prefixes, refines, mi.comments)
set_publisher(root, prefixes, refines, mi.publisher)
set_tags(root, prefixes, refines, mi.tags)
set_rating(root, prefixes, refines, mi.rating)
set_series(root, prefixes, refines, mi.series, mi.series_index)
set_author_link_map(root, prefixes, refines, getattr(mi, 'author_link_map', None))
set_user_categories(root, prefixes, refines, getattr(mi, 'user_categories', None))
set_user_metadata(root, prefixes, refines, mi.get_all_user_metadata(False))
if authors or apply_null:
set_authors(root, prefixes, refines, authors)
if ok('pubdate'):
set_pubdate(root, prefixes, refines, mi.pubdate)
if update_timestamp and mi.timestamp is not None:
set_timestamp(root, prefixes, refines, mi.timestamp)
if ok('comments'):
set_comments(root, prefixes, refines, mi.comments)
if ok('publisher'):
set_publisher(root, prefixes, refines, mi.publisher)
if ok('tags'):
set_tags(root, prefixes, refines, mi.tags)
if ok('rating') and mi.rating > 0.1:
set_rating(root, prefixes, refines, mi.rating)
if ok('series'):
set_series(root, prefixes, refines, mi.series, mi.series_index or 1)
if ok('author_link_map'):
set_author_link_map(root, prefixes, refines, getattr(mi, 'author_link_map', None))
if ok('user_categories'):
set_user_categories(root, prefixes, refines, getattr(mi, 'user_categories', None))
new_user_metadata, current_user_metadata = mi.get_all_user_metadata(True), current_mi.get_all_user_metadata(True)
missing = object()
for key in tuple(new_user_metadata):
meta = new_user_metadata.get(key)
if meta is None:
if apply_null:
new_user_metadata[key] = None
continue
dt = meta.get('datatype')
if dt == 'text' and meta.get('is_multiple'):
val = mi.get(key, [])
if val or apply_null:
current_user_metadata[key] = meta
elif dt in {'int', 'float', 'bool'}:
val = mi.get(key, missing)
if val is missing:
if apply_null:
current_user_metadata[key] = meta
elif apply_null or val is not None:
current_user_metadata[key] = meta
elif apply_null or not mi.is_null(key):
current_user_metadata[key] = meta
set_user_metadata(root, prefixes, refines, current_user_metadata)
pretty_print_opf(root)