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92 lines
3.2 KiB
Markdown
92 lines
3.2 KiB
Markdown
# Internationalisation
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REST framework ships with translatable error messages. You can make these appear in your language enabling [Django's standard translation mechanisms][django-translation] and by translating the messages into your language.
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## How to translate REST Framework errors
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This guide assumes you are already familiar with how to translate a Django app. If you're not, start by reading [Django's translation docs][django-translation].
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#### To translate REST framework error messages:
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1. Make a new folder where you want to store the translated errors. Add this
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path to your [`LOCALE_PATHS`][django-locale-paths] setting.
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---
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**Note:** For the rest of
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this document we will assume the path you created was
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`/home/www/project/conf/locale/`, and that you have updated your `settings.py` to include the setting:
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```
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LOCALE_PATHS = (
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'/home/www/project/conf/locale/',
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)
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```
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---
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2. Now create a subfolder for the language you want to translate. The folder should be named using [locale
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name][django-locale-name] notation. E.g. `de`, `pt_BR`, `es_AR`, etc.
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```
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mkdir /home/www/project/conf/locale/pt_BR/LC_MESSAGES
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```
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3. Now copy the base translations file from the REST framework source code
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into your translations folder
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```
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cp /home/user/.virtualenvs/myproject/lib/python2.7/site-packages/rest_framework/locale/en_US/LC_MESSAGES/django.po
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/home/www/project/conf/locale/pt_BR/LC_MESSAGES
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```
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This should create the file
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`/home/www/project/conf/locale/pt_BR/LC_MESSAGES/django.po`
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---
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**Note:** To find out where `rest_framework` is installed, run
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```
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python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())"
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```
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---
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4. Edit `/home/www/project/conf/locale/pt_BR/LC_MESSAGES/django.po` and
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translate all the error messages.
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5. Run `manage.py compilemessages -l pt_BR` to make the translations
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available for Django to use. You should see a message
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```
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processing file django.po in /home/www/project/conf/locale/pt_BR/LC_MESSAGES
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```
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6. Restart your server.
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## How Django chooses which language to use
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REST framework will use the same preferences to select which language to
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display as Django does. You can find more info in the [Django docs on discovering language preferences][django-language-preference]. For reference, these are
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1. First, it looks for the language prefix in the requested URL
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2. Failing that, it looks for the `LANGUAGE_SESSION_KEY` key in the current user’s session.
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3. Failing that, it looks for a cookie
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4. Failing that, it looks at the `Accept-Language` HTTP header.
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5. Failing that, it uses the global `LANGUAGE_CODE` setting.
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---
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**Note:** You'll need to include the `django.middleware.locale.LocaleMiddleware` to enable any of the per-request language preferences.
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---
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[django-translation]: https://docs.djangoproject.com/en/1.7/topics/i18n/translation
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[django-language-preference]: https://docs.djangoproject.com/en/1.7/topics/i18n/translation/#how-django-discovers-language-preference
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[django-locale-paths]: https://docs.djangoproject.com/en/1.7/ref/settings/#std:setting-LOCALE_PATHS
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[django-locale-name]: https://docs.djangoproject.com/en/1.7/topics/i18n/#term-locale-name |