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[3.1.x] Fixed #31570 -- Corrected translation loading for apps providing territorial language variants with different plural equations. 

Regression in e3e48b0012.

Thanks to Shai Berger for report, reproduce and suggested fix.

Backport of dd1ca50b09 from master
This commit is contained in:
Carlton Gibson 2020-05-28 10:26:41 +02:00 committed by Mariusz Felisiak
parent 9ce281d21f
commit 98fada7244
16 changed files with 176 additions and 3 deletions
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2
django/utils/translation/trans_real.py
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@ -96,7 +96,7 @@ class TranslationCatalog:
cat.update(trans._catalog)
break
else:
self._catalogs.insert(0, trans._catalog)
self._catalogs.insert(0, trans._catalog.copy())
self._plurals.insert(0, trans.plural)
def get(self, key, default=None):

7
docs/releases/2.2.13.txt
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@ -4,9 +4,12 @@ Django 2.2.13 release notes
*Expected June 3, 2020*
Django 2.2.13 fixes two security issues and a bug in 2.2.12.
Django 2.2.13 fixes two security issues and a regression in 2.2.12.
Bugfixes
========
* ...
* Fixed a regression in Django 2.2.12 that affected translation loading for
apps providing translations for territorial language variants as well as a
generic language, where the project has different plural equations for the
language (:ticket:`31570`).

5
docs/releases/3.0.7.txt
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@ -25,3 +25,8 @@ Bugfixes
* Fixed a regression in Django 3.0 where all resolved ``Subquery()``
expressions were considered equal (:ticket:`31607`).
* Fixed a regression in Django 3.0.5 that affected translation loading for apps
providing translations for territorial language variants as well as a generic
language, where the project has different plural equations for the language
(:ticket:`31570`).

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tests/i18n/loading/en/LC_MESSAGES/django.mo Normal file
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23
tests/i18n/loading/en/LC_MESSAGES/django.po Normal file
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@ -0,0 +1,23 @@
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2020-05-13 08:42+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
#: trans/tests.py:16
msgid "local country person"
msgstr "local country person"

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tests/i18n/loading/en_AU/LC_MESSAGES/django.mo Normal file
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23
tests/i18n/loading/en_AU/LC_MESSAGES/django.po Normal file
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@ -0,0 +1,23 @@
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2020-05-13 08:42+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
#: trans/tests.py:16
msgid "local country person"
msgstr "aussie"

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tests/i18n/loading/en_CA/LC_MESSAGES/django.mo Normal file
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22
tests/i18n/loading/en_CA/LC_MESSAGES/django.po Normal file
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@ -0,0 +1,22 @@
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2020-05-13 08:42+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
#: trans/tests.py:16
msgid "local country person"
msgstr "canuck"

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tests/i18n/loading/en_NZ/LC_MESSAGES/django.mo Normal file
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22
tests/i18n/loading/en_NZ/LC_MESSAGES/django.po Normal file
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@ -0,0 +1,22 @@
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2020-05-13 08:42+0000\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
#: trans/tests.py:16
msgid "local country person"
msgstr "kiwi"

0
tests/i18n/loading_app/__init__.py Normal file
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5
tests/i18n/loading_app/apps.py Normal file
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@ -0,0 +1,5 @@
from django.apps import AppConfig
class LoadingAppConfig(AppConfig):
name = 'loading_app'

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tests/i18n/loading_app/locale/en/LC_MESSAGES/django.mo Normal file
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25
tests/i18n/loading_app/locale/en/LC_MESSAGES/django.po Normal file
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@ -0,0 +1,25 @@
# SOME DESCRIPTIVE TITLE.
# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
# This file is distributed under the same license as the PACKAGE package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2020-05-13 11:39+0300\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <LL@li.org>\n"
"Language: \n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
#: apps.py:8
msgid ""
"An app with its own translation files, with one for 'en' but not the "
"regional dialects of English"
msgstr ""

45
tests/i18n/tests.py
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@ -384,6 +384,51 @@ class TranslationTests(SimpleTestCase):
self.assertIs(get_language_bidi(), True)
class TranslationLoadingTests(SimpleTestCase):
def setUp(self):
"""Clear translation state."""
self._old_language = get_language()
self._old_translations = trans_real._translations
deactivate()
trans_real._translations = {}
def tearDown(self):
trans_real._translations = self._old_translations
activate(self._old_language)
@override_settings(
USE_I18N=True,
LANGUAGE_CODE='en',
LANGUAGES=[
('en', 'English'),
('en-ca', 'English (Canada)'),
('en-nz', 'English (New Zealand)'),
('en-au', 'English (Australia)'),
],
LOCALE_PATHS=[os.path.join(here, 'loading')],
INSTALLED_APPS=['i18n.loading_app'],
)
def test_translation_loading(self):
"""
"loading_app" does not have translations for all languages provided by
"loading". Catalogs are merged correctly.
"""
tests = [
('en', 'local country person'),
('en_AU', 'aussie'),
('en_NZ', 'kiwi'),
('en_CA', 'canuck'),
]
# Load all relevant translations.
for language, _ in tests:
activate(language)
# Catalogs are merged correctly.
for language, nickname in tests:
with self.subTest(language=language):
activate(language)
self.assertEqual(gettext('local country person'), nickname)
class TranslationThreadSafetyTests(SimpleTestCase):
def setUp(self):