language selector koseven

controller.php

   <?php
/**
 * Front end controller for OC app
 *
 * @package    OC
 * @category   Controller
 * @author     Chema <chema@open-classifieds.com>
 * @copyright  (c) 2009-2013 Open Classifieds Team
 * @license    GPL v3
 */

class Controller extends Kohana_Controller
{
    /**
     * user if its loged in
     * @var Model_User
     */
    public $user = NULL;
    
    function __construct(Request $request, Response $response)
    {
        $locale = NULL;

        //setting the user
        $this->user = Auth::instance()->get_user();

        //not any locale specified lets use user locale
        if( $this->user!=FALSE AND (Request::current()->param('language') === '' OR Request::current()->param('language') === NULL) AND Core::get('language') === NULL )
        {
            $locale = $this->user->language;
        }
        else
        {
            //we allow to choose lang from the url
            if( ($lang = Request::current()->param('language')) !==NULL AND ($lang = Request::current()->param('language')) !=='')
            {
                $locale  = $lang;
            }
            elseif( ($lang = Core::get('language')) !==NULL)
            {
                $locale  = $lang;
            }
            elseif (Cookie::get('user_language')!==NULL)
            {
                $locale = Cookie::get('user_language');
            }

        }

        //lets be sure the correct locale is used
        $locale_exists = FALSE;

        foreach (i18n::get_languages() as $language) 
        {
            //we check full locale name or only first
            if ($locale == $language OR $locale == substr($language, 0,2))
            {
                //so we get the entire locale                
                $locale        = $language;
                $locale_exists = TRUE;
                break;
            }
        }

        //couldnt find the locale use a default
        if ($locale_exists === FALSE)
            $locale = i18n::$locale_default;

        //in case user is logged in and he chose a different locale we update it
        if($this->user != FALSE AND $locale !== NULL AND $this->user->language!=$locale)
        {
            $this->user->language = $locale;
            $this->user->save();
        }

        //saves cookie for later
        Cookie::set('user_language',$locale, Core::config('auth.lifetime'));

        //initialize i18n
        I18n::initialize($locale,Core::config('i18n.charset'));

        parent::__construct($request,$response);

    }
   
}

home.php

<?php

class Controller_Home extends Controller {

	public function action_index()
	{        
        //trying to access the home page directly /home.html
        if ($this->request->param('seotitle')=='home')
        {
            $this->redirect(Route::url('default'));
        }

        //if param lang == en redirect only with seoname
        if ($this->request->param('language') == 'en')
        {
            //we dont want duplicated content thats why if they write /en in the browser we redirect them to the home page
            $this->redirect(Route::url('default').'?language=en');
        }

        //if set by cookie ignore the keyboard
        if (Cookie::get('user_language')!==NULL)
            $locale = Cookie::get('user_language');
        //not keyboard then lets use the keyboard language nly first visit
        else
            $locale = key(Request::accept_lang());

        $key_lang = substr($locale,0,2);

        //redirect him to proper language
        if ($this->request->param('language')===NULL AND $key_lang != 'en' AND core::get('language')=== NULL) 
        {
            foreach (i18n::$languages as $lang=>$name) 
            {
                if (substr($lang,0,2) == $key_lang)
                    $this->redirect(Route::url('home',array('language'=>$key_lang)));
            }
        }
    
        //get content of the home page not by seoname but by locale and controller
        $page = new Model_Content();
        $page = $page
                 ->where('type','=', 'page')
                 ->where('locale','=', i18n::$locale)
                 ->where('controller','=', 'home')
                 ->where('action','=', 'index')
                 ->where('status','=', 1)
                 ->limit(1)->cached()->find();
        if ($page->loaded())
        {
            $this->template->title            = $page->title;
            $this->template->meta_description = $page->description;

            $this->template->bind('content', $content);
            
            $this->template->content = View::factory('pages/home',array('page'=>$page));
        }
        //not found in DB
        else
        {
            //throw 404
            throw HTTP_Exception::factory(404,__('Page not found'));
        }
  }
  
}

i18n.php

<?php
/**
* I18n class for php-gettext
*
* @package    I18n
* @category   Translations
* @author     Chema <chema@open-classifieds.com>
* @copyright  (c) 2009-2014 Open Classifieds Team
* @license    GPL v3
*/


class I18n extends Kohana_I18n {

    public static $locale;
    public static $locale_default = 'en_US';
    public static $charset;
    public static $domain;

    /**
     * forces to use the dropin
     */
    public static $dropin = FALSE;

    /**
     * array of allowed languages, used in dropdowns and routes.php
     * @var array
     */
    public static $languages = array(
        'en_US' => 'English',
        'es_ES' => 'Español',
        //'fr_FR' => 'Français',
        //'ar'    => 'العربية',
        //'ru_RU' => 'Pусский',
        );


    /**
     *
     * Initializes the php-gettext
     * Remember to load first php-gettext
     * @param string $locale
     * @param string $charset
     * @param string $domain
     */
    public static function initialize($locale = NULL, $charset = 'utf-8', $domain = 'messages')
    {
        if ($locale===NULL)
            $locale = self::$locale_default;

        /**
         * setting the statics so later we can access them from anywhere
         */
        self::$lang    = $locale;//used in i18n kohana
        self::$locale  = $locale;
        self::$charset = $charset;
        self::$domain  = $domain;

        //time zone set in the config
        date_default_timezone_set(Kohana::$config->load('i18n')->timezone);

        //Kohana core charset, used in the HTML templates as well
        Kohana::$charset  = self::$charset;

        setlocale(LC_ALL, self::$locale.'.'.self::$charset);
        bindtextdomain(self::$domain,APPPATH.'languages');
        bind_textdomain_codeset(self::$domain, self::$charset);
        textdomain(self::$domain);
    }
  
}

page.php

<?php

class Controller_Page extends Controller {

    /**
     *
     * Display single page
     * @throws HTTP_Exception_404
     */
    public function action_view()
    {
        $seotitle = $this->request->param('seotitle',NULL);
        $param_language = $this->request->param('language');
        
        if ($seotitle!==NULL)
        {
            //if param lang == en redirect only with seoname
            if ($param_language == 'en')
                $this->redirect(Route::url('page',array('seotitle'=>$seotitle)));
            elseif($param_language==NULL)//not any set then use english!
                $param_language = 'en';
            
            //get the page content
            $page = new Model_Content();
            $page = $page->where('seotitle','=', $seotitle)
                     ->where('type','=', 'page')
                     ->where('status','=', 1)
                     ->where(DB::expr('LEFT(locale, 2)'),'=',$param_language)
                     ->limit(1)->cached()->find();

            //so page loaded and language by uri the same
            if ($page->loaded())// AND substr($page->locale,0,2) == $param_language )
            {
                Breadcrumbs::add(Breadcrumb::factory()->set_title(__('Home'))->set_url(Route::url('default')));
                Breadcrumbs::add(Breadcrumb::factory()->set_title($page->title));

                $this->template->title            = $page->title;
                $this->template->meta_description = $page->description;

                //execute external controller if has any
                if ($page->controller!==NULL AND $page->action!==NULL AND method_exists('Controller_'.$page->controller, 'action_'.$page->action) )
                {
                    $action = 'action_'.$page->action;
                    $controller = 'Controller_'.$page->controller;  
                    $controller = new $controller($this->request, $this->response);
                    $controller->$action($page,$this);
                    
                    //set current controller & action same as external
                    $this->request->controller($page->controller);
                    $this->request->action($page->action);
                }
                else
                {
                    $this->template->bind('content', $content);
                    $this->template->content = View::factory('page',array('page'=>$page));
                }
                
            }
            //not found in DB
            else
            {
                //throw 404
                throw HTTP_Exception::factory(404,__('Page not found'));
            }

        }
        else//this should never happen
        {
            //throw 404
            throw HTTP_Exception::factory(404,__('Page not found'));
        }
    }

    /**
     * Landing page
     */
    public function action_landing(Model_Content $page = NULL, $controller = NULL)
    {
        $controller->template->bind('content', $content);
        $controller->template->content = View::factory('landing',array('page'=>$page));
    }

    /**
     * Landing page with no background
     */
    public function action_landing_no_bg(Model_Content $page = NULL, $controller = NULL)
    {
        $controller->template->bind('content', $content);
        $controller->template->content = View::factory('landing_no_bg',array('page'=>$page));
    }


} // End Page controller

routes.php

<?

/**
 * home other languages
 */
Route::set('home', '<language>', array('language' => $allowed_languages))
->defaults(array(
        'controller' => 'home',
        'action'     => 'index',
        'language'   => 'en',
));

/**
 * blog
 */
Route::set('blog','(<language>/)blog(/<seotitle>.html)', array('language' => $allowed_languages))
->defaults(array(
        'controller' => 'blog',    
        'action'     => 'index',
        'language'   => 'en',
));

/**
 * FAQ
 */
Route::set('faq', '(<language>/)faq(/<seotitle>.html)', array('language' => $allowed_languages))
->defaults(array(
        'controller' => 'faq',    
        'action'     => 'index',
        'language'   => 'en',
));


/**
 * page view public
 */
Route::set('page','(<language>/)<seotitle>.html')
->defaults(array(
        'controller' => 'page',    
        'action'     => 'view',
        'seotitle'   => '',
));