jinja jinja2模板i18n不翻译

Question

我的Django项目有问题，我使用Jinja2作为模板引擎；特别是使用django-jinja“提供不引人注目的Jinja2支持”:(。我的问题是模板中的字符串没有被翻译。Django识别正确的语言，也可以使用/i18n/setlang视图进行设置。

奇怪的是，Python中定义的字符串被翻译成：

# in settings/base.py
from django.utils.translation import ugettext_lazy as _

LANGUAGES = (
    ('en', _('English')),
    ('de', _('German')),
)

LANGUAGE_CODE = "en"
TIME_ZONE = "UTC"
USE_I18N = True
USE_L10N = True

我有一个django.po位于locale/de/LC_MESSAGES/django.po，有一个对应的django.mo

#: PyLatein/settings/base.py:144
msgid "English"
msgstr "Englisch"

#: PyLatein/settings/base.py:145
msgid "German"
msgstr "Deutsch"

#: templates/about.jinja:9
msgid "About"
msgstr "Über"

在我呈现的模板中，使用了正确的语言(LANGUAGE_CODE是正确的)和

if the language is en, then I can choose between "English" and "German",
if the language is de, then I can choose between "Englisch" and "Deutsch"!

->因此正确翻译了这些，但是About仍然是About而不是Über，尽管在我使用的模板about.jinja中

<h1 class="page-header">{{ _('About') }}</h1>

我的中间人是：

MIDDLEWARE_CLASSES = (
    "django.contrib.sessions.middleware.SessionMiddleware",
    "django.middleware.locale.LocaleMiddleware",
    "django.middleware.common.CommonMiddleware",
    "django.middleware.csrf.CsrfViewMiddleware",
    "django.contrib.auth.middleware.AuthenticationMiddleware",
    "django.contrib.auth.middleware.SessionAuthenticationMiddleware",
    "django.contrib.messages.middleware.MessageMiddleware",
    "django.middleware.clickjacking.XFrameOptionsMiddleware",
    "django.middleware.security.SecurityMiddleware",
)

我的模板定义是：

TEMPLATES = [
    {
        "BACKEND": "django_jinja.backend.Jinja2",
        "DIRS": [osp.join(BASE_DIR, "templates")],
        "APP_DIRS": True,
        "OPTIONS": {
            "match_extension": ".jinja",
            "context_processors": [
                "django.template.context_processors.debug",
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
                "django.template.context_processors.i18n",
            ],
            "extensions": [
                "jinja2.ext.do",
                "jinja2.ext.loopcontrols",
                "jinja2.ext.with_",
                "jinja2.ext.i18n",
                "jinja2.ext.autoescape",
                "django_jinja.builtins.extensions.CsrfExtension",
                "django_jinja.builtins.extensions.CacheExtension",
                "django_jinja.builtins.extensions.TimezoneExtension",
                "django_jinja.builtins.extensions.UrlsExtension",
                "django_jinja.builtins.extensions.StaticFilesExtension",
                "django_jinja.builtins.extensions.DjangoFiltersExtension",
            ],
            "constants": {
                "settings": settings,
            },
            "translation_engine": "django.utils.translation",
        }
    },
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.debug",
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
            ],
        },
    },
]

我使用Python 3、Django 1.9.8和django-jinja 2.2.0

Answer 1

原来我需要指定LOCALE_PATHS

LOCALE_PATHS = (
    osp.join(BASE_DIR, "locale"),
)

我以某种方式假设，在默认情况下，它们被设置为"locale“(因为我在.py中读到了这篇文章)。

这就是为什么它没有翻译我的字符串。“英语”和“德语”这两个词仍然被翻译，因为django在$PYTHONPATH/django/conf/locale/<language>/LC_MESSAGES/django.(po|mo)中有一个后备语言环境。