/**
* Adds canonical product URLs to the document
* @param IsotopeProduct
*/
protected function addCanonicalProductUrls(IsotopeProduct $objProduct)
{
global $objPage;
$arrPageIds = \Database::getInstance()->getChildRecords($objPage->rootId, \PageModel::getTable());
$arrPageIds[] = $objPage->rootId;
// Find the categories in the current root
$arrCategories = array_intersect($objProduct->getCategories(), $arrPageIds);
foreach ($arrCategories as $intPage) {
// Do not use the index page as canonical link
if ($objPage->alias == 'index' && count($arrCategories) > 1) {
continue;
}
// Current page is the primary one, do not generate canonical link
if ($intPage == $objPage->id) {
break;
}
if (($objJumpTo = \PageModel::findWithDetails($intPage)) !== null) {
$strDomain = \Environment::get('base');
// Overwrite the domain
if ($objJumpTo->dns != '') {
$strDomain = ($objJumpTo->useSSL ? 'https://' : 'http://') . $objJumpTo->dns . TL_PATH . '/';
}
$GLOBALS['TL_HEAD'][] = sprintf('<link rel="canonical" href="%s">', $strDomain . $objProduct->generateUrl($objJumpTo));
break;
}
}
}
