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# Copyright 2009-2011 Canonical Ltd. This software is licensed under the GNU
# Affero General Public License version 3 (see the file LICENSE).
"""Translations vocabularies."""
__metaclass__ = type
__all__ = [
'FilteredDeltaLanguagePackVocabulary',
'FilteredFullLanguagePackVocabulary',
'FilteredLanguagePackVocabulary',
'TranslatableLanguageVocabulary',
'TranslationGroupVocabulary',
'TranslationMessageVocabulary',
'TranslationTemplateVocabulary',
]
from sqlobject import (
AND,
)
from zope.schema.vocabulary import (
SimpleTerm,
)
from canonical.database.sqlbase import (
sqlvalues,
)
from canonical.launchpad.webapp.vocabulary import (
NamedSQLObjectVocabulary,
SQLObjectVocabularyBase,
)
from lp.registry.interfaces.distroseries import IDistroSeries
from lp.services.worlddata.interfaces.language import ILanguage
from lp.services.worlddata.vocabularies import LanguageVocabulary
from lp.translations.enums import LanguagePackType
from lp.translations.model.languagepack import LanguagePack
from lp.translations.model.potemplate import POTemplate
from lp.translations.model.translationgroup import TranslationGroup
from lp.translations.model.translationmessage import TranslationMessage
class TranslatableLanguageVocabulary(LanguageVocabulary):
"""All the translatable languages known by Launchpad.
Messages cannot be translated into English or a non-visible language.
This vocabulary contains all the languages known to Launchpad,
excluding English and non-visible languages.
"""
def __contains__(self, language):
"""See `IVocabulary`.
This vocabulary excludes English and languages that are not visible.
"""
assert ILanguage.providedBy(language), (
"'in TranslatableLanguageVocabulary' requires ILanguage as "
"left operand, got %s instead." % type(language))
if language.code == 'en':
return False
return language.visible == True and super(
TranslatableLanguageVocabulary, self).__contains__(language)
def __iter__(self):
"""See `IVocabulary`.
Iterate languages that are visible and not English.
"""
languages = self._table.select(
"Language.code != 'en' AND Language.visible = True",
orderBy=self._orderBy)
for language in languages:
yield self.toTerm(language)
def getTermByToken(self, token):
"""See `IVocabulary`."""
if token == 'en':
raise LookupError(token)
term = super(TranslatableLanguageVocabulary, self).getTermByToken(
token)
if not term.value.visible:
raise LookupError(token)
return term
class TranslationGroupVocabulary(NamedSQLObjectVocabulary):
_table = TranslationGroup
class TranslationMessageVocabulary(SQLObjectVocabularyBase):
_table = TranslationMessage
_orderBy = 'date_created'
def toTerm(self, obj):
translation = ''
if obj.msgstr0 is not None:
translation = obj.msgstr0.translation
return SimpleTerm(obj, obj.id, translation)
def __iter__(self):
for message in self.context.messages:
yield self.toTerm(message)
class TranslationTemplateVocabulary(SQLObjectVocabularyBase):
"""The set of all POTemplates for a given product or package."""
_table = POTemplate
_orderBy = 'name'
def __init__(self, context):
if context.productseries != None:
self._filter = AND(
POTemplate.iscurrent == True,
POTemplate.productseries == context.productseries)
else:
self._filter = AND(
POTemplate.iscurrent == True,
POTemplate.distroseries == context.distroseries,
POTemplate.sourcepackagename == context.sourcepackagename)
super(TranslationTemplateVocabulary, self).__init__(context)
def toTerm(self, obj):
return SimpleTerm(obj, obj.id, obj.name)
class FilteredLanguagePackVocabularyBase(SQLObjectVocabularyBase):
"""Base vocabulary class to retrieve language packs for a distroseries."""
_table = LanguagePack
_orderBy = '-date_exported'
def toTerm(self, obj):
return SimpleTerm(
obj, obj.id, '%s' % obj.date_exported.strftime('%F %T %Z'))
def _baseQueryList(self):
"""Return a list of sentences that defines the specific filtering.
That list will be linked with an ' AND '.
"""
raise NotImplementedError
def __iter__(self):
if not IDistroSeries.providedBy(self.context):
# This vocabulary is only useful from a DistroSeries context.
return
query = self._baseQueryList()
query.append('distroseries = %s' % sqlvalues(self.context))
language_packs = self._table.select(
' AND '.join(query), orderBy=self._orderBy)
for language_pack in language_packs:
yield self.toTerm(language_pack)
class FilteredFullLanguagePackVocabulary(FilteredLanguagePackVocabularyBase):
"""Full export Language Pack for a distribution series."""
displayname = 'Select a full export language pack'
def _baseQueryList(self):
"""See `FilteredLanguagePackVocabularyBase`."""
return ['type = %s' % sqlvalues(LanguagePackType.FULL)]
class FilteredDeltaLanguagePackVocabulary(FilteredLanguagePackVocabularyBase):
"""Delta export Language Pack for a distribution series."""
displayname = 'Select a delta export language pack'
def _baseQueryList(self):
"""See `FilteredLanguagePackVocabularyBase`."""
return ['(type = %s AND updates = %s)' % sqlvalues(
LanguagePackType.DELTA, self.context.language_pack_base)]
class FilteredLanguagePackVocabulary(FilteredLanguagePackVocabularyBase):
displayname = 'Select a language pack'
def toTerm(self, obj):
return SimpleTerm(
obj, obj.id, '%s (%s)' % (
obj.date_exported.strftime('%F %T %Z'), obj.type.title))
def _baseQueryList(self):
"""See `FilteredLanguagePackVocabularyBase`."""
# We are interested on any full language pack or language pack
# that is a delta of the current base lanuage pack type,
# except the ones already used.
used_lang_packs = []
if self.context.language_pack_base is not None:
used_lang_packs.append(self.context.language_pack_base.id)
if self.context.language_pack_delta is not None:
used_lang_packs.append(self.context.language_pack_delta.id)
query = []
if used_lang_packs:
query.append('id NOT IN %s' % sqlvalues(used_lang_packs))
query.append('(updates is NULL OR updates = %s)' % sqlvalues(
self.context.language_pack_base))
return query
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