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Implement writing of languages field

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Kovid Goyal 2013-03-25 16:10:45 +05:30
parent c2bc85a3ad
commit 4f6709d754
2 changed files with 27 additions and 1 deletions
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16
src/calibre/db/tests/writing.py
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@ -252,7 +252,21 @@ class WritingTest(BaseTest):
ae(cache.field_for('author_sort', 1), 'GoyaL, KoviD')
ae(cache.field_for('author_sort', 3), 'GoyaL, KoviD & Layog, Divok')
# TODO: identifiers, languages
# Languages
f = cache.fields['languages']
ae(f.table.id_map, {1: 'eng', 2: 'deu'})
ae(sf('languages', {1:''}), set([1]))
ae(cache.field_for('languages', 1), ())
ae(sf('languages', {2:('und',)}), set([2]))
af(f.table.id_map)
ae(sf('languages', {1:'eng,fra,deu', 2:'es,Dutch', 3:'English'}), {1, 2, 3})
ae(cache.field_for('languages', 1), ('eng', 'fra', 'deu'))
ae(cache.field_for('languages', 2), ('spa', 'nld'))
ae(cache.field_for('languages', 3), ('eng',))
ae(sf('languages', {3:None}), set([3]))
ae(cache.field_for('languages', 3), ())
# TODO: identifiers
# }}}

12
src/calibre/db/write.py
View File

@ -15,6 +15,7 @@ from calibre.constants import preferred_encoding, ispy3
from calibre.ebooks.metadata import author_to_author_sort
from calibre.utils.date import (parse_only_date, parse_date, UNDEFINED_DATE,
isoformat)
from calibre.utils.localization import canonicalize_lang
from calibre.utils.icu import strcmp
if ispy3:
@ -96,6 +97,15 @@ def adapt_bool(x):
x = bool(int(x))
return x if x is None else bool(x)
def adapt_languages(to_tuple, x):
ans = []
for lang in to_tuple(x):
lc = canonicalize_lang(lang)
if not lc or lc in ans or lc in ('und', 'zxx', 'mis', 'mul'):
continue
ans.append(lc)
return tuple(ans)
def get_adapter(name, metadata):
dt = metadata['datatype']
if dt == 'text':
@ -133,6 +143,8 @@ def get_adapter(name, metadata):
return lambda x: ans(x) or UNDEFINED_DATE
if name == 'series_index':
return lambda x: 1.0 if ans(x) is None else ans(x)
if name == 'languages':
return partial(adapt_languages, ans)
return ans
# }}}