How to use config value in symfony2 translation?

Question

Is it possible to use global variable from config.yml in translation file in symfony 2? If yes, please can you give some example or useful link?

Answer 1

For injecting a (or all) twig globals into your translations you need to override the translation service. Check out this answer if you want a detailed explanation. Here is what I did:

Override the translator.class parameter (e.g. in your parameters.yml):

translator.class:  Acme\YourBundle\Translation\Translator

Create the new Translator service:

use Symfony\Bundle\FrameworkBundle\Translation\Translator as BaseTranslator;

class Translator extends BaseTranslator
{

}

Finally override both trans and transChoice:

/**
 * {@inheritdoc}
 */
public function trans($id, array $parameters = array(), $domain = null, $locale = null)
{
    return parent::trans(
        $id,
        array_merge($this->container->get('twig')->getGlobals(), $parameters),
        $domain,
        $locale
    );
}

/**
 * {@inheritdoc}
 */
public function transChoice($id, $number, array $parameters = array(), $domain = null, $locale = null)
{
    return parent::transChoice(
        $id,
        $number,
        array_merge($this->container->get('twig')->getGlobals(), $parameters),
        $domain,
        $locale
    );
}

In this example I am injecting all twig globals. You can only inject one like this:

array_merge(['%your_global%' => $this->container->get('twig')->getGlobals()['your_global']], $parameters)

Answer 2

You can follow those 2 simple steps:

1. Inject a Global variable in all the templates using the twig configuration:

   # app/config/parameters.yml
   parameters:
       my_favorite_website: www.stackoverflow.com
   

   And

   # app/config/config.yml
   twig:
       globals:
           my_favorite_website: "%my_favorite_website%"
   

2. Use Message Placeholders to have the ability to place your text in your translation:

   # messages.en.yml
   I.love.website: "I love %website%!!"
   
   # messages.fr.yml
   I.love.website: "J'adore %website%!!"
   

You now can use the following twig syntax in your templates to get your expected result:

{{ 'I.love.website'|trans({'%website%': my_favorite_website}) }}