/**
* action for / to redirect to the best language based on the request language order
*/
public function defaultLanguageAction(Request $request, $contentDocument)
{
if (!$contentDocument instanceof RouteAwareInterface) {
throw new \Exception('The route passed to the language selection action must emulate content to have the correct route generated.');
}
// TODO: use lunetics/LocaleBundle https://github.com/symfony-cmf/cmf-sandbox/issues/54
$defaultPreferredLangs = $this->chooser->getDefaultLocalesOrder();
$bestLang = $request->getPreferredLanguage($defaultPreferredLangs);
// we only care about the first 2 characters, even if the user's preference is de_CH.
$bestLang = substr($bestLang, 0, 2);
/*
* Let the router generate the route for the requested language. The
* route provides its children, which should be the urls for each locale
* as content.
*/
$routeParams = $request->query->all();
// do not lose eventual get parameters
$routeParams['_locale'] = $bestLang;
// and set the locale
$routeParams['content'] = $contentDocument;
// and the content for the router
$url = $this->router->generate('', $routeParams, true);
/* Note: I wanted to send a 300 "Multiple Choices" header along with a
* Location header, but user agents may behave inconsistently in
* response to this.
*
* For example Chrome was not redirecting unless the headers were
* carefully tailored for it. (In particular, it doesn't like the
* lowercase 'location' header that results from calling
* $response->headers->set('Location', '...')
*/
$response = new RedirectResponse($url, 301);
$response->setVary('accept-language');
return $response;
}
