Forcing the Twig Locale

Question

I would like to use the Twig template system to template my e-mails. The locale of the e-mail should be based on a user setting, not from the session or request locale. How can

Answer 1

Here is a solution (it works well, except sub-templates (Twig: render(controller('AppBundle:Invoice/Index:productTotalPartial')))

translator = $translator;
    }

    /**
     * Change the locale
     *
     * @param string $locale
     */
    public function setLocale($locale)
    {
        $this->previousLocale = $this->translator->getLocale();

        $this->translator->setLocale($locale);
        $this->setPhpDefaultLocale($locale);
    }

    /**
     * Revert the locale
     */
    public function revertLocale()
    {
        if ($this->previousLocale === null) {
            return;
        }

        $this->translator->setLocale($this->previousLocale);
        $this->setPhpDefaultLocale($this->previousLocale);

        $this->previousLocale = null;
    }

    /**
     * Use temporary locale in closure function
     *
     * @param string $locale
     * @param \Closure $c
     */
    public function temporaryLocale($locale, \Closure $c)
    {
        $this->setLocale($locale);

        $c();

        $this->revertLocale();
    }

    /**
     * Sets the default PHP locale.
     * Copied from Symfony/Component/HttpFoundation/Request.php
     *
     * @param string $locale
     */
    private function setPhpDefaultLocale($locale)
    {
        // if either the class Locale doesn't exist, or an exception is thrown when
        // setting the default locale, the intl module is not installed, and
        // the call can be ignored:
        try {
            if (class_exists('Locale', false)) {
                /** @noinspection PhpUndefinedClassInspection */
                \Locale::setDefault($locale);
            }
        } catch (\Exception $e) {
        }
    }
}

Example:

if ($this->getLocale()) {
    $this->localeSwitcher->setLocale($this->getLocale());
}

$html = $this->templating->render($templatePath);

if ($this->getLocale()) {
    $this->localeSwitcher->revertLocale();
}