/**
* Gets the product reader of a certain page
* @param Database_Result|int page object or page ID
* @param int override setting from a module or content element
* @return int reader page id
*/
public static function getReaderPageId($objOriginPage = null, $intOverride = 0)
{
if ($intOverride > 0) {
return $intOverride;
}
if ($objOriginPage === null) {
global $objPage;
$objOriginPage = $objPage;
}
$intPage = is_object($objOriginPage) ? (int) $objOriginPage->id : (int) $objOriginPage;
// return from cache
if (isset(self::$arrReaderPageIds[$intPage])) {
return self::$arrReaderPageIds[$intPage];
}
$objDatabase = Database::getInstance();
if (!is_object($objOriginPage)) {
$objOriginPage = $objDatabase->execute("SELECT * FROM tl_page WHERE id=" . $intPage);
}
// if the reader page is set on the current page id we return this one
if ($objOriginPage->iso_setReaderJumpTo > 0) {
self::$arrReaderPageIds[$intPage] = $objOriginPage->iso_readerJumpTo;
return $objOriginPage->iso_readerJumpTo;
}
// now move up the page tree until we find a page where the reader is set
$trail = array();
$pid = $objOriginPage->pid;
do {
$objParentPage = $objDatabase->execute("SELECT * FROM tl_page WHERE id=" . $pid);
if ($objParentPage->numRows < 1) {
break;
}
$trail[] = $objParentPage->id;
if ($objParentPage->iso_setReaderJumpTo > 0) {
// cache the reader page for all trail pages
self::$arrReaderPageIds = array_merge(self::$arrReaderPageIds, array_fill_keys($trail, $objParentPage->iso_readerJumpTo));
return $objParentPage->iso_readerJumpTo;
}
$pid = $objParentPage->pid;
} while ($pid > 0 && $objParentPage->type != 'root');
// if there is no reader page set at all, we take the current page object
global $objPage;
self::$arrReaderPageIds[$intPage] = $objPage->id;
return $objPage->id;
}
