Django: Only a single element gets translated

问题

Porting a Django site from 1.2 to 1.5 on Python 2.6 i ran into problems with internationalization.

The wierd thing is that only one string gets translated in the entire site (Well, almost, the date filter could translate long month names when I tested). Other strings located in the same template doesn't get translated, and all translations are located in a single po/mo file. All translations are there, verified with Poedit and compiled with manage.py compilemessages.

Edit: The reason for the single translated string was that it matched a string in the admin site.

While trying things to get it to work I cleared the LOCALE_PATH, restarted the dev server (manage.py runserver), cleared any browser cache (even though meta-data for the site disables cashing), lo and behold the element is still translated. I verified this by adding the same text again after, and it still gets translated, so no client side caching is involved.

Language switching works as expected and the only translated element is changed to the default language, {{ LANGUAGE_CODE }} confirms this. I've tried clearing the session data and django cache (which doesn't seem to be used by the dev server).

Can someone guess what's going on here? Isn't there any debug flags to get more extensive logging or something?

A minimal view:

def locale_test(request):
    locale = request.GET.get('l', None)
    if locale:
        translation.activate(locale)
    di = {"foobar": _("foobar")}
    return render_to_response('locale_test.html',di, context_instance=RequestContext(request))

And corresponding template (locale_test.html):

{% load i18n %}
<p>Language: {{ LANGUAGE_CODE }}</p>
<p>Matching string from admin site that gets translated correctly: {% trans "Log out" %}</p>
<p>Translated in template: {% trans "Foobar" %}</p>
<p>Translated in view: {{ foobar }}</p>

Relevant settings:

USE_I18N = True

USE_L10N = True

LANGUAGES = (
    ('en', 'English'),
    ('foo', 'Fooo'),
)

LANGUAGE_CODE = 'en'

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.locale.LocaleMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',

 )

 TEMPLATE_CONTEXT_PROCESSORS = (
      'django.contrib.auth.context_processors.auth',
      'django.core.context_processors.i18n',
      'django.core.context_processors.request',
     )
LOCALE_PATHS = ('/path/to/my/locale',)

For reference, these questions didn't help me:

django internationalization and translations issue
Django not translating the site properly
Django i18n does not work

回答1:

Gah! I got bit by the same issue as this guy : https://code.djangoproject.com/ticket/18492

Namely that a trailing comma was missing in the LOCALE_PATHS tuple. Too bad Django doesn't raise an error for that.

回答2:

I had a similar issue that I resolved in making sure that whenever I update the django.po file, I compile it:

./manage.py compilemessages

The translation get done from the compiled file (django.mo) and not the .po file

Generate the translation file: ./manage.py makemessages -a
Translate: manually or using a tool like autotranslate
compile the file: ./manage.py compilemessages
Test to see the changes: not that the default language might be picked first, make sure that you change the language. For example change localhost:8000/en/ to localhost:8000/fr/ or localhost:8000/foo/ depending on the language you want to see

I hope this helps

来源：https://stackoverflow.com/questions/18234842/django-only-a-single-element-gets-translated

标签

django

django-i18n