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Refs #29713 -- Improved error message from translation system check.

This commit is contained in:
Nick Pope 2018-09-06 12:49:25 +01:00 committed by Carlton Gibson
parent ccf870ebf5
commit 570402ffd7
3 changed files with 53 additions and 61 deletions
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24
django/core/checks/translation.py
View File

@ -1,25 +1,19 @@
import re
from django.conf import settings
from django.utils.translation.trans_real import language_code_re
from . import Error, Tags, register
E001 = Error(
'You have provided an invalid value for the LANGUAGE_CODE setting.',
id='translation.E001',
)
@register(Tags.translation)
def check_setting_language_code(app_configs, **kwargs):
"""
Errors if language code is in the wrong format. Language codes specification outlined by
https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags
Errors if language code setting is invalid.
"""
match_result = re.match(language_code_re, settings.LANGUAGE_CODE)
errors = []
if not match_result:
errors.append(Error(
"LANGUAGE_CODE in settings.py is {}. It should be in the form ll or ll-cc where ll is the language and cc "
"is the country. Examples include: it, de-at, es, pt-br. The full set of language codes specifications is "
"outlined by https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags".format(
settings.LANGUAGE_CODE),
id="translation.E001",
))
return errors
if not language_code_re.match(settings.LANGUAGE_CODE):
return [E001]
return []

22
docs/ref/checks.txt
View File

@ -85,8 +85,8 @@ Django's system checks are organized using the following tags:
* ``signals``: Checks on signal declarations and handler registrations.
* ``staticfiles``: Checks :mod:`django.contrib.staticfiles` configuration.
* ``templates``: Checks template related configuration.
* ``translation``: Checks translation related configuration.
* ``urls``: Checks URL configuration.
* ``translation``: Checks language formats used for translation.
Some checks may be registered with multiple tags.
@ -427,6 +427,14 @@ configured:
:setting:`OPTIONS <TEMPLATES-OPTIONS>` must be a string but got: ``{value}``
(``{type}``).
Translation
-----------
The following checks are performed on your translation configuration:
* **translation.E001**: You have provided an invalid value for the
:setting:`LANGUAGE_CODE` setting.
URLs
----
@ -450,18 +458,6 @@ The following checks are performed on your URL configuration:
* **urls.E006**: The :setting:`MEDIA_URL`/ :setting:`STATIC_URL` setting must
end with a slash.
Translation
-----------
The following checks are performed on your translation configuration:
* **translation.E001**: LANGUAGE_CODE in settings.py is ``<language_code>``.
It should be in the form ll or ll-cc where ll is the language and cc is the
country. Examples include: ``it``, ``de-at``, ``es``, ``pt-br``. The full
set of language codes specifications is outlined by
https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags
``contrib`` app checks
======================

66
tests/check_framework/test_translation.py
View File

@ -1,39 +1,41 @@
from django.core.checks.translation import check_setting_language_code
from django.core.checks.translation import E001, check_setting_language_code
from django.test import SimpleTestCase, override_settings
class TranslationCheckTests(SimpleTestCase):
@override_settings(LANGUAGE_CODE="eu")
def test_valid_language_code_format_ll_only(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 0)
def test_valid_language_code(self):
tags = (
'en', # language
'mas', # language
'sgn-ase', # language+extlang
'fr-CA', # language+region
'es-419', # language+region
'zh-Hans', # language+script
'ca-ES-valencia', # language+region+variant
# FIXME: The following should be invalid:
'sr@latin', # language+script
)
for tag in tags:
with self.subTest(tag), override_settings(LANGUAGE_CODE=tag):
self.assertEqual(check_setting_language_code(None), [])
@override_settings(LANGUAGE_CODE="eü")
def test_invalid_language_code_format_ll_only(self):
def test_invalid_language_code(self):
tags = (
'eü', # non-latin characters.
'en_US', # locale format.
'en--us', # empty subtag.
'-en', # leading separator.
'en-', # trailing separator.
'en-US.UTF-8', # language tag w/ locale encoding.
'en_US.UTF-8', # locale format - languate w/ region and encoding.
'ca_ES@valencia', # locale format - language w/ region and variant.
# FIXME: The following should be invalid:
# 'sr@latin', # locale instead of language tag.
)
for tag in tags:
with self.subTest(tag), override_settings(LANGUAGE_CODE=tag):
result = check_setting_language_code(None)
self.assertEqual(len(result), 1)
error = result[0]
self.assertEqual(error.id, 'translation.E001')
self.assertEqual(error.msg, (
"LANGUAGE_CODE in settings.py is eü. It should be in the form ll or ll-cc where ll is the language and cc "
"is the country. Examples include: it, de-at, es, pt-br. The full set of language codes specifications is "
"outlined by https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags"
))
@override_settings(LANGUAGE_CODE="en-US")
def test_valid_language_code_format_ll_cc(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 0)
@override_settings(LANGUAGE_CODE="en_US")
def test_invalid_language_code_format_ll_cc(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 1)
error = result[0]
self.assertEqual(error.id, 'translation.E001')
self.assertEqual(error.msg, (
"LANGUAGE_CODE in settings.py is en_US. It should be in the form ll or ll-cc where ll is the language and "
"cc is the country. Examples include: it, de-at, es, pt-br. The full set of language codes specifications "
"is outlined by https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags"
))
self.assertEqual(result, [E001])
self.assertEqual(result[0].id, 'translation.E001')
self.assertEqual(result[0].msg, 'You have provided an invalid value for the LANGUAGE_CODE setting.')