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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
__metaclass__ = type
__all__ = [
'POFileTranslator',
'POFileTranslatorSet',
]
from sqlobject import ForeignKey
from storm.expr import And
from storm.store import Store
from zope.interface import implements
from canonical.database.datetimecol import UtcDateTimeCol
from canonical.database.sqlbase import (
SQLBase,
sqlvalues,
)
from lp.registry.interfaces.person import validate_public_person
from lp.translations.interfaces.pofiletranslator import (
IPOFileTranslator,
IPOFileTranslatorSet,
)
from lp.translations.model.translationmessage import TranslationMessage
class POFileTranslator(SQLBase):
"""See `IPOFileTranslator`."""
implements(IPOFileTranslator)
pofile = ForeignKey(foreignKey='POFile', dbName='pofile', notNull=True)
person = ForeignKey(
dbName='person', foreignKey='Person',
storm_validator=validate_public_person, notNull=True)
latest_message = ForeignKey(
foreignKey='TranslationMessage', dbName='latest_message',
notNull=True)
date_last_touched = UtcDateTimeCol(
dbName='date_last_touched', notNull=False, default=None)
class POFileTranslatorSet:
"""The set of all `POFileTranslator` records."""
implements(IPOFileTranslatorSet)
def prefetchPOFileTranslatorRelations(self, pofiletranslators):
"""See `IPOFileTranslatorSet`."""
ids = set(record.id for record in pofiletranslators)
if not ids:
return None
# Listify prefetch query to force its execution here.
return list(POFileTranslator.select(
"POFileTranslator.id IN %s" % sqlvalues(ids),
prejoins=[
'pofile',
'pofile.potemplate',
'pofile.potemplate.productseries',
'pofile.potemplate.productseries.product',
'pofile.potemplate.distroseries',
'pofile.potemplate.sourcepackagename',
'latest_message',
'latest_message.potmsgset',
'latest_message.potmsgset.msgid_singular',
'latest_message.msgstr0',
]))
def getForPersonPOFile(self, person, pofile):
"""See `IPOFileTranslatorSet`."""
return Store.of(pofile).find(POFileTranslator, And(
POFileTranslator.person == person.id,
POFileTranslator.pofile == pofile.id)).one()
def getForPOTMsgSet(self, potmsgset):
"""See `IPOFileTranslatorSet`."""
store = Store.of(potmsgset)
match = And(
POFileTranslator.latest_message == TranslationMessage.id,
TranslationMessage.potmsgset == potmsgset)
return store.find(POFileTranslator, match).config(distinct=True)
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