/**
* Custom instance loader that forces access policy checking.
*
* {@inheritdoc}
*/
public static function load(xPDO & $xpdo, $className, $criteria, $cacheFlag= true) {
$instance= null;
$fromCache= false;
if ($className= $xpdo->loadClass($className)) {
if (!is_object($criteria)) {
$criteria= $xpdo->getCriteria($className, $criteria, $cacheFlag);
}
if (is_object($criteria)) {
$row= null;
if ($xpdo->_cacheEnabled && $criteria->cacheFlag && $cacheFlag) {
$row= $xpdo->fromCache($criteria, $className);
}
if ($row === null || !is_array($row)) {
if ($rows= xPDOObject :: _loadRows($xpdo, $className, $criteria)) {
$row= $rows->fetch(PDO::FETCH_ASSOC);
$rows->closeCursor();
}
} else {
$fromCache= true;
}
if (!is_array($row)) {
if ($xpdo->getDebug() === true) $xpdo->log(xPDO::LOG_LEVEL_DEBUG, "Fetched empty result set from statement: " . print_r($criteria->sql, true) . " with bindings: " . print_r($criteria->bindings, true));
} else {
$instance= modAccessibleObject :: _loadInstance($xpdo, $className, $criteria, $row);
if (is_object($instance)) {
if (!$fromCache && $cacheFlag && $xpdo->_cacheEnabled) {
$xpdo->toCache($criteria, $instance, $cacheFlag);
if ($xpdo->getOption(xPDO::OPT_CACHE_DB_OBJECTS_BY_PK) && ($cacheKey= $instance->getPrimaryKey()) && !$instance->isLazy()) {
$pkCriteria = $xpdo->newQuery($className, $cacheKey, $cacheFlag);
$xpdo->toCache($pkCriteria, $instance, $cacheFlag);
}
}
if ($xpdo->getDebug() === true) $xpdo->log(xPDO::LOG_LEVEL_DEBUG, "Loaded object instance: " . print_r($instance->toArray('', true), true));
}
}
} else {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, 'No valid statement could be found in or generated from the given criteria.');
}
} else {
$xpdo->log(xPDO::LOG_LEVEL_ERROR, 'Invalid class specified: ' . $className);
}
return $instance;
}