New in Symfony 5.3: Translation Providers

Contributed by
Mathieu Santostefano
in #38475.

The process of translating Symfony applications requires extracting all
translatable contents from templates and code. This task is boring and
error-prone; that’s why Symfony provides a translation:update command to
extract contents and update catalogs automatically.

This works great, unless your application uses external translation services
with their own local or SaaS-based translation tools. Then you need to send
them the translation catalogs from time to time to translate the new contents
and then merge the returned catalog back into your application.

In Symfony 5.3 we’ve improved this workflow thanks to the integration of
external translation providers
. You can now upload/download translations to
services like Crowdin, Loco, Lokalise and PoEditor and merge the
new translations automatically into your application.

Let’s imagine that you hire a translation company that uses Crowdin to share
their work with you. First, configure the access to this provider:

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# config/packages/translation.yaml
framework:
translator:
providers:
crowdin:
dsn: ‚crowdin://PROJECT_ID:[email protected]_DOMAIN.default‘
domains: [‚messages‘]
locales: [‚en‘, ‚ja‘]

Now you can upload the current application translations with this command:

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# upload all translations for all locales
$ php bin/console translation:push crowdin –force

# or upload translations only for some locale(s)
$ php bin/console translation:push crowdin –locales ja

# or just upload the translations of a particular domain
$ php bin/console translation:push crowdin –domain admin

Similarly, you can download the translations from the external service and let
Symfony merge them automatically with the existing translations:

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# download all translations for all locales
$ php bin/console translation:pull crowdin –force

# download all translations for ‚ja‘ locale and add the new
# translations into the existing file
$ php bin/console translation:pull crowdin –locales ja

Both commands define more flags and options. Run them with the –help option
to learn about those options.

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