Symfony2:切换语言环境期间的向后Uri(Referrer) [英] Symfony2: Backward Uri (Referrer) during switching locale

问题描述

我想实现语言环境切换器，但是似乎没有运气...

I'd like to implement locale switcher, but it seems with no luck...

下面的代码不起作用，因为(Referrer)包含语言环境的旧值...

The code below doesn't work because the (Referrer) contains the old value of locale...

如何使用新的locale值重定向到旧的Referrer URI?

How can I redirect to the old Referrer URI with a new value of locale?

-routing.yml

-- routing.yml

hello:
  pattern:  /{_locale}/hello/{name}
  defaults: { _controller: JetInformBundle:Default:index, name: 'alexander' }
  requirements:
    _locale: ^en|de|ru|uk$

about:
  pattern:  /{_locale}/about
  defaults: { _controller: JetInformBundle:Default:about }
  requirements:
    _locale: ^en|de|ru|uk$

locale:
  pattern:  /locale/{locale}
  defaults: { _controller: JetInformBundle:Locale:index }

-DefaultController.php

-- 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)
    {
        $request->getSession()->set('referrer', $request->getRequestUri());
        return $this->render('JetInformBundle:Default:index.html.twig',
                             array('name' => $name));
    }

    public function aboutAction(Request $request)
    {
        $request->getSession()->set('referrer', $request->getRequestUri());
        return $this->render('JetInformBundle:Default:about.html.twig'));
    }
}

-LocaleController.php

-- LocaleController.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 LocaleController extends Controller
{
    public function indexAction($locale, Request $request)
    {
        $session = $request->getSession();

        if ($request->hasSession())
            $session->setLocale($locale);

        return $this->redirect($session->get('referrer'));
    }
}

-index.html.twig

-- index.html.twig

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

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

{% include 'JetInformBundle:Default:locales.html.twig' %}

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

-- locales.html.twig

<div class="langs">
    <ul>
        <li>
            {% if app.request.get('_locale') == 'ru' %}
                Русский
            {% else %}
                <a href="{{ path('locale', { 'locale': 'ru' }) }}">Русский</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'en' %}
                English
            {% else %}
                <a href="{{ path('locale', { 'locale': 'en' }) }}">English</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'uk' %}
                Украiнська
            {% else %}
                <a href="{{ path('locale', { 'locale': 'uk' }) }}">Украiнська</a>
            {% endif %}
        </li>
        <li>
            {% if app.request.get('_locale') == 'de' %}
                Deutsch
            {% else %}
                <a href="{{ path('locale', { 'locale': 'de' }) }}">Deutsch</a>
            {% endif %}
        </li>
    </ul>
</div>

推荐答案

让我向您展示我的解决方案.我已经编写了内核事件侦听器:

Let me show you my solution. I've written kernel event listener:

<service id="expedio.simple.listener" class="Expedio\SimpleBundle\Listener\Kernel">
      <tag name="kernel.event_listener" event="kernel.request" method="onKernelRequest" />
      <argument type="service" id="router" />
  </service>

类似于以下内容:

namespace Expedio\SimpleBundle\Listener;

use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;

class Kernel {

    /**
     * @var \Symfony\Component\DependencyInjection\ContainerInterface
     */
    private $router;

    public function __construct(\Symfony\Component\Routing\Router $router) {
        $this->router = $router;
    }

    public function onKernelRequest(GetResponseEvent $event) {
        if ($event->getRequestType() !== \Symfony\Component\HttpKernel\HttpKernel::MASTER_REQUEST) {
            return;
        }

        /** @var \Symfony\Component\HttpFoundation\Request $request  */
        $request = $event->getRequest();
        /** @var \Symfony\Component\HttpFoundation\Session $session  */
        $session = $request->getSession();

        $routeParams = $this->router->match($request->getPathInfo());
        $routeName = $routeParams['_route'];
        if ($routeName[0] == '_') {
            return;
        }
        unset($routeParams['_route']);
        $routeData = array('name' => $routeName, 'params' => $routeParams);

        //Skipping duplicates
        $thisRoute = $session->get('this_route', array());
        if ($thisRoute == $routeData) {
            return;
        }
        $session->set('last_route', $thisRoute);
        $session->set('this_route', $routeData);
    }
}

每次用户打开页面时，它仅保存最后的请求路由数据.在控制器中，当用户想要更改语言环境时，我可以这样做:

It just saves last request route data each time user opens a page. And in controller when user wants to change locale I do this:

/**
 * @Route("/setlocale/{locale}", name="set_locale")
 * @param string $locale
 * @return array
 */
public function setLocaleAction($locale) {
    /** @var \Symfony\Component\HttpFoundation\Session $session  */
    $session = $this->get('session');
    $session->setLocale($locale);
    $last_route = $session->get('last_route', array('name' => 'index'));
    $last_route['params']['_locale'] = $locale;
    return ($this->redirect($this->generateUrl($last_route['name'], $last_route['params'])));
}

这篇关于Symfony2:切换语言环境期间的向后Uri(Referrer)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！