php - CakePHP 中的本地化路由 : How to redirect to default language

Question

自 2012 年以来，this post似乎是关于如何在 CakePHP 中执行本地化路由的最权威资源(下面复制的代码)。

它运行良好，但有一个异常(exception):它不会重定向缺少语言前缀的请求。例如，http://example.com将显示与 http://example.com/eng 相同的内容(如果英语是默认语言)。同样，如果不是主页:http://example.com/foo/bar/ => http://example.com/eng/foo/bar .评论中提到了这个问题，但没有确定的解决方案，这就是我正在寻找的。

代码。

// Step 1: app/Config/routes.php
Router::connect('/:language/:controller/:action/*',
                  array(),
                  array('language' => 'eng|fra'));

Router::connect('/:language/:controller',
                  array('action' => 'index'),
                  array('language' => 'eng|fra'));  

Router::connect('/:language',
                  array('controller' => 'welcome', 'action' => 'index'),
                  array('language' => 'eng|fra'));

//Step 2: app/Config/core.php
Configure::write('Config.language', 'eng');

//Step 3: create app/View/Helper/MyHtmlHelper.php
App::uses('HtmlHelper', 'View/Helper');
class MyHtmlHelper extends HtmlHelper {
    public function url($url = null, $full = false) {
        if(!isset($url['language']) && isset($this->params['language'])) {
          $url['language'] = $this->params['language'];
        }
        return parent::url($url, $full);
   }
}

//Step 4: app/Controller/AppController.php
class AppController extends Controller {
    public $components = array('Cookie','Session');
    //set an alias for the newly created helper: Html<->MyHtml
    public $helpers = array('Html' => array('className' => 'MyHtml'));

    public function beforeFilter() {
          $this->_setLanguage();
        }

    private function _setLanguage() {
    //if the cookie was previously set, and Config.language has not been set
    //write the Config.language with the value from the Cookie
        if ($this->Cookie->read('lang') && !$this->Session->check('Config.language')) {
            $this->Session->write('Config.language', $this->Cookie->read('lang'));
        } 
        //if the user clicked the language URL 
        else if (   isset($this->params['language']) && 
        ($this->params['language'] !=  $this->Session->read('Config.language'))
                ) {
            //then update the value in Session and the one in Cookie
            $this->Session->write('Config.language', $this->params['language']);
            $this->Cookie->write('lang', $this->params['language'], false, '20 days');
        }
    }

    //override redirect
    public function redirect( $url, $status = NULL, $exit = true ) {
        if (!isset($url['language']) && $this->Session->check('Config.language')) {
            $url['language'] = $this->Session->read('Config.language');
        }
        parent::redirect($url,$status,$exit);
    }
}

//add the links to the languages:
//Step 5: app/View/...
echo $this->Html->link('English', array('language'=>'eng')); 
echo $this->Html->link('Français', array('language'=>'fra')); 

更新 1

我尝试了 user221931 的建议，但它似乎不起作用。这是我添加到 route 的内容:

/* Add default language param */
Router::redirect('/:controller/:action/*', 
                    array('language' => 'fra'), 
                    array('persist' => false) );
Router::redirect('/:controller/', 
                    array('language' => 'fra'), 
                    array('persist' => false) );
Router::redirect('/', 
                    array('controller'=>'pages', 'action'=>'display', 'language' => 'fra', 'home'), 
                    array('persist' => false) );

好像没有效果。以下 URL 不重定向:http:example.com/, http://example.com/controller/ , http://example.com/controller/action/

更新 2根据要求，这是我的完整路线文件:

<?php
/**
 * Routes configuration
 *
 * In this file, you set up routes to your controllers and their actions.
 * Routes are very important mechanism that allows you to freely connect
 * different URLs to chosen controllers and their actions (functions).
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @package       app.Config
 * @since         CakePHP(tm) v 0.2.9
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

#http://book.cakephp.org/2.0/en/views/json-and-xml-views.html
Router::parseExtensions('json');

/**
 * Here, we are connecting '/' (base path) to controller called 'Pages',
 * its action called 'display', and we pass a param to select the view file
 * to use (in this case, /app/View/Pages/home.ctp)...
 */
    Router::connect('/', array('controller' => 'pages', 'action' => 'display', 'home'));
/**
 * ...and connect the rest of 'Pages' controller's URLs.
 */
    Router::connect('/pages/*', array('controller' => 'pages', 'action' => 'display'));


/**
 * LOCALIZED URLs
 * See: http://colorblindprogramming.com/multiple-languages-in-a-cakephp-2-application-in-5-steps
 */
Router::connect('/:language/:controller/:action/*',
                       array(),
                       array('language' => 'eng|fra'));

Router::connect('/:language/:controller',
                   array('action' => 'index'),
                   array('language' => 'eng|fra')); 

Router::connect('/:language',
                   array('controller' => 'pages', 'action' => 'display', 'home'),
                   array('language' => 'eng|fra'));

# prevent routing conflicts with plugins...
# http://www.omaroid.com/cakephp-locale-language-routing/
// make an array of loaded plugins
$loaded = CakePlugin::loaded();
array_walk($loaded, function(&$item,$key){
    $item = Inflector::underscore($item);
});
$loaded = implode('|', $loaded);

Router::connect('/:language/:plugin/:controller/:action/*', 
                    array(), 
                    array('language' => 'eng|fra','plugin' => "($loaded)"));

/* HIDE /index */
//Router::connect('/:controller/', array('action'=>'index') );
Router::connect('/:language/:controller/', array('action'=>'index') );

/**
 * Load all plugin routes. See the CakePlugin documentation on
 * how to customize the loading of plugin routes.
 */
    CakePlugin::routes();

/**
 * Load the CakePHP default routes. Only remove this if you do not want to use
 * the built-in default routes.
 */
    require CAKE . 'Config' . DS . 'routes.php';

Answer 1

这在 AppController.php 中非常简单:

const DEFAULT_LANGUAGE = 'eng';
public function beforeFilter() {
    parent::beforeFilter();
    if (empty($this->params['language'])) {
        $this->redirect(array('language' => self::DEFAULT_LANGUAGE));
    }
}