Symfony2: Locale Switcher implementation without session/controller [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 10 years ago.

So, seems everything ok after 3.5 hours......

Two pages:

localhost.lo/xx/about

localhost.lo/xx/hello/{name}

where xx - several locales described in routing.yml

-- routing.yml

home:
    resource: "@JetInformBundle/Resources/config/routing.yml"
    prefix: /{_locale}
    requirements:
        _locale: ^en|de|ru|uk|pl$

-- JetInformBundle routing.yml

hello:
    pattern:  /hello/{name}
    defaults: { _controller: JetInformBundle:Default:index, name: 'alexander' }

about:
    pattern:  /about
    defaults: { _controller: JetInformBundle:Default:about }

-- DefaultController.php

<?php

namespace Jet\InformBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\HttpFoundation\Request;

class DefaultController extends Controller
{
    public function indexAction($name, Request $request)
    {
        return $this->render('JetInformBundle:Default:index.html.twig',
                             array('name' => $name, 'matches' => $this->matchAction($request)));
    }

    public function aboutAction(Request $request)
    {
        return $this->render('JetInformBundle:Default:about.html.twig',
                              array('matches' => $this->matchAction($request)));
    }

    protected function matchAction(Request $request)
    {
        return $this->get('router')->match($request->getRequestUri());
    }
}

-- index.html.twig

{% extends '::base.html.twig' %}

{% block body %}
<h1>{{ 'hello.name'|trans }} {{ name }}!</h1>
<h3>{{ 'your.locale'|trans }} [{{ app.request.get('_locale') }}]</h3>

{% include 'JetInformBundle:Default:locales.html.twig'
            with {
                'uripath': 'hello',
                'params': {
                    'name': app.request.get('name')
                }
            }
%}

{% include 'JetInformBundle:Default:matches.html.twig'
            with { 'matches': matches } %}

<div>
    <p>{{ 'return.to'|trans }} <a href="{{ path('about', { '_locale': app.request.get('_locale') }) }}">About</a></p>
</div>
{% endblock %}

-- about.html.twig

{% extends '::base.html.twig' %}

{% block body %}
<h1>{% trans %}about.page{% endtrans %}</h1>
<h3>{% trans %}your.locale{% endtrans %} [{{ app.request.get('_locale') }}]</h3>

{% include 'JetInformBundle:Default:locales.html.twig'
            with { 'uripath': 'about', 'params': {}} %}

{% include 'JetInformBundle:Default:matches.html.twig'
            with { 'matches': matches } %}

<div>
    <p>{% trans%}return.to{% endtrans%} <a href="{{ path('hello', { 'name': app.request.get('name'), '_locale': app.request.get('_locale') }) }}">Hello</a></p>
</div>
{% endblock %}

-- locales.html.twig

{% if not params %}
    {% set params = {} %}
{% endif %}

<div class="langs">
    <ul>
        <li>
            {% if app.request.get('_locale') == 'ru' %}
                Русский
            {% else %}
                <a href="{{ path(uripath, params|merge({ '_locale': 'ru' })) }}">Русский</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'en' %}
                English
            {% else %}
                <a href="{{ path(uripath, params|merge({ '_locale': 'en' })) }}">English</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'uk' %}
                Украiнська
            {% else %}
                <a href="{{ path(uripath, params|merge({ '_locale': 'uk' })) }}">Украiнська</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'de' %}
                Deutsch
            {% else %}
                <a href="{{ path(uripath, params|merge({ '_locale': 'de' })) }}">Deutsch</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'pl' %}
                Polish
        开发者_JAVA百科    {% else %}
                <a href="{{ path(uripath, params|merge({ '_locale': 'pl' })) }}">Polish</a>
            {% endif %}
        </li>
    </ul>
</div>

-- matches.html.twig

<h5>Matches</h5>
<ol>
{% for key, value in matches %}
    <li>{{ key }} : {{ value }} </li>
{% endfor %}
</ol>

Solution without session based R/W and without LocalesController with additional request. Hey, All, what do you think about ? May be other solutions, another opinions ?? Just interesting... Thanks.