I’ve added comments to my original snippet for better understanding. YMMV.
<?php
// reset:
unset($langStrD);
unset($langStrF);
unset($langStrI);
// get alias of current document:
$sitenameAlias = $modx->documentObject['alias'];
$sitenameAliasC = strlen($sitenameAlias);
$sitenameRawAlias = substr($sitenameAlias, 0, ($sitenameAliasC - 2));
$sitenameCurrLang = substr($sitenameAlias, ($sitenameAliasC - 2), 2);
// construct alias names for all languages:
$sitenameAliasItaliano = $sitenameRawAlias . "-i";
$sitenameAliasFranz = $sitenameRawAlias . "-f";
$sitenameAliasDeutsch = $sitenameRawAlias . "-d";
// get german id for current page (language 1):
$sqlD = "SELECT id AS IDD FROM modx_site_content WHERE alias='$sitenameAliasDeutsch'";
$resultsD = $modx->db->query($sqlD);
if(mysql_num_rows($resultsD) > 0) {
while ($row = mysql_fetch_array($resultsD)) {
extract($row);
// if a german translation exists, link to it:
$langStrD .= "<a href='?id=$IDD' title='deutsche Sprachversion'>[ D ]</a> ";
}
} else {
// if this page doesn't exist in german, point to the german homepage instead (frontpage, top level)
$langStrD .= "<a href=\"http://www.sitename.ch/?id=2\" onclick=\"javascript: return confirm('Deutsche Version dieser Seite existiert nicht. Möchten Sie zur deutschsprachigen Startseite wechseln?');\">[ D ]</a> ";
}
// get french id for current page (language 2):
$sqlF = "SELECT id AS IDF FROM modx_site_content WHERE alias='$sitenameAliasFranz'";
$resultsF = $modx->db->query($sqlF);
if(mysql_num_rows($resultsF) > 0) {
while ($row = mysql_fetch_array($resultsF)) {
extract($row);
// if a french translation exists, link to it:
$langStrF .= "<a href='?id=$IDF' title='français'>[ F ]</a> ";
}
} else {
// if this page doesn't exist in french, point to the french homepage instead (frontpage, top level)
$langStrF .= "<a href=\"http://www.sitename.ch/?id=259\" onclick=\"javascript: return confirm('La version française de cette page n\'existe pas. Voulez-vous passer à la page d\'accueil de la version française?');\">[ F ]</a> ";
}
$sqlI = "SELECT id AS IDI FROM modx_site_content WHERE alias='$sitenameAliasItaliano' ";
$resultsI = $modx->db->query($sqlI);
if(mysql_num_rows($resultsI) > 0) {
while ($row = mysql_fetch_array($resultsI)) {
extract($row);
// if an italian translation exists, link to it:
$langStrI .= "<a href='?id=$IDI' title='italiano'>[ I ]</a> ";
}
} else {
// if this page doesn't exist in italian, point to the italian homepage instead (frontpage, top level)
$langStrI .= "<a href=\"http://www.sitename.ch/?id=377\" onclick=\"javascript: return confirm('La versione italiana di questa pagina non esiste. Desidera cambiare e accedere alla pagina d\'inizio della versione italiana?');\">[ I ]</a> ";
}
// finally, display language switch links:
// e.g. only display alternative languages
// if we're on a german page, only display links to french + italian
// "deep link" to equivalent doc if available
// or to french/italian frontpage, if that doc is not translated yet
if($sitenameCurrLang == '-d') {
echo "$langStrF $langStrI";
}
if($sitenameCurrLang == '-f') {
echo "$langStrD $langStrI";
}
if($sitenameCurrLang == '-i') {
echo "$langStrD $langStrF";
}
?>
I saved the snippet as langSwitch, and simply inserted [!langSwitch!] into my main site navigation, on top.
i.e. if you accidentally landed on the french page (e.g. via Google), you can simly choose one of the other available lang. versions.
Since there’s always a time-lag between publishing the original docs (german) and the translations (italian + french), and the client
doesn’t want ALL docs translated anyway, the snippet points you to the frontpage in such cases.
Hope it helps.
