TYPO3 CMS 7.3 - What’s New

Deprecated/Removed Functions
Removal of IdentityMap from Extbase Persistence
Class IdentityMap has been removed from Extbase persistence
(a ReflectionException is thrown if it is still used)
Accessing the previously existing IdentityMap properties within
DataMapper and Repository will fail now and the creation of
IdentityMap instances is not possible anymore
Use "Sessions" persistence instead:
$session = GeneralUtility::makeInstance(ObjectManager::class)->get(
\TYPO3\CMS\Extbase\Persistence\Generic\Session::class
);
$session->registerObject($object, $identifier);
if($session->hasIdentifier($identifier)) {
$object = $session->getObjectByIdentifier($identifier, $className);
}
TYPO3 CMS 7.3 - What’s New