Support for multilanguage sites, Internationalization (I18N)

[bob_lennon]

Hello,

first of all I'd like to thank mvlcek for his excellent plugins but I always missed one feature, the possibility for having a localized slug. So I tried to write it myself and here's my working solution.

It simply works with adding _yourLocalSlug at the end of your slug

An example for a "About" page in english (default), french and german

english slug = about
french slug = about_fr_a-propos (frontend page url = fr/a-propos)
german slug = about_de_ueber-uns (frontend page url = de/ueber-uns)

but you don't have to add the translated slug so it won't break your existing pages, you can still use
french slug = about_fr (frontend page url = fr/about)


For this to work you have to make the following changes in your php files

in plugins/i18n_base.php

insert before add_action('index-pretemplate', 'i18n_init');

PHP Code:

add_action('error-404', 'i18n_local_slug'); 


insert after the i18n_init() function

PHP Code:

function i18n_local_slug() {
  global $id;
  require_once(GSPLUGINPATH.'i18n_base/frontend.class.php');
  I18nFrontend::setLocalizedSlug($id);
} 


in plugins/i18n_base/frontend.class.php

insert before the load($lang) function

PHP Code:

public static function setLocalizedSlug($id) {
      global $data_index;
    
    $langcode = substr(self::getLangURL(), -3, -1);
    
    $file_array = glob(GSDATAPAGESPATH . '*' . '_' . $langcode . '_' . $id .'.xml');
    
    if(file_exists($file_array[0])) {
        $data_index = getXml($file_array[0]);
    }
  } 


The code can normally be inserted everywhere in these files (maybe not the add_action, but not sure) but it seemed to me to be appropriate like this.

For the navigation

in plugins/i18n_navigation/frontend.class.php

in public static function getPages

add after
if (strpos($filename,'_') !== false) {
$pos = strpos($data->url,'_');
$url = substr($data->url,0,$pos);
$lang = substr($data->url,$pos+1);

the following

PHP Code:

if (strlen($lang) > 2) {
    $pos = strpos($lang,'_');
    $slug = substr($lang,$pos+1);
    $lang = substr($lang,0,$pos);
    } 


and after
if ($menu) self::$pages[$url]['menu_'.$lang] = stripslashes($menu);
if ($title) self::$pages[$url]['title_'.$lang] = stripslashes($title);

the following

PHP Code:

if (isset($slug)) self::$pages[$url]['slug_'.$lang] = $slug; 


in public static function getMenu
add after
$slug = '' . $slug;

the following

PHP Code:

$pos = strpos($slug, '_');
if($pos > 0) $slug = substr($slug, 0, $pos); 


in private static function getMenuImpl
add after
'title' => self::getProperty($childurl,'title',$deflang),
'link' => self::getProperty($childurl,'link',$deflang),

the following

PHP Code:

'slug' => self::getProperty($childurl,'slug',$deflang), 


in public static function getMenuHTMLImpl

replace
$href = @$item['link'] ? $item['link'] : (function_exists('find_i18n_url') ? find_i18n_url($item['url'],$item['parent']) : find_url($item['url'],$item['parent']));

with

PHP Code:

if (!isset($item['slug'])) {
$href = @$item['link'] ? $item['link'] : (function_exists('find_i18n_url') ? find_i18n_url($item['url'],$item['parent']) : find_url($item['url'],$item['parent']));
}
else {
$href = @$item['link'] ? $item['link'] : (function_exists('find_i18n_url') ? find_i18n_url($item['slug'],$item['parent']) : find_url($item['slug'],$item['parent']));
} 


And for the administration

in plugins/i18n_base/pages.php

change
$lang = substr($data->url,$pos+1);
to

PHP Code:

$lang = substr($data->url,$pos+1,2); 


add after (before the closing "}" )
if (isset($page['variants'][$lang])) {
$variant =& $page['variants'][$lang];
if ($variant['title'] == '') $variant['title'] = '[No Title] &nbsp;&raquo;&nbsp; <em>'. $variant['url'] .'</em>';

the following

PHP Code:

$localslug = $variant['url'];
$localslugarray = explode("_", $localslug);

if (isset($localslugarray[2])) {
    $localslug = $localslugarray[2];
    }
else {
    $localslug = $localslugarray[0];
    }
    
$file_array = glob(GSDATAPAGESPATH . $page['parent'] . '_' . $lang . '_' . '*' .'.xml');
    
if(file_exists($file_array[0])) {
$localslugparentarray = explode("_", basename($file_array[0], ".xml"));

if (isset($localslugparentarray[2])) {
    $localslugparent = $localslugparentarray[2];
    }
else {
    $localslugparent = $page['parent'];
    } 


and replace
<a title="<?php echo i18n_r('VIEWPAGE_TITLE').': '.stripslashes($variant['title']); ?>" target="_blank" href="<?php echo find_i18n_url($page['url'],$page['parent'],$lang); ?>">#</a>

with

Code:

<a title="<?php echo i18n_r('VIEWPAGE_TITLE').': '.stripslashes($variant['title']); ?>" target="_blank" href="<?php echo find_i18n_url($localslug,$localslugparent,$lang); ?>">#</a>

That's it (if I didn't forget to write down some changes I made).

I tested it with a newly installed GetSimple 3.2.1 and I18N 3.2.2 and fixed every issue I encountered.

This can probably be made in a more elegant way and I hope mvlcek will add this to his plugin (and fix the compatibility issues that will probably come with the other I18N plugins)