protected function getCustomTransactionOldValue(PhabricatorLiskDAO $object, PhabricatorApplicationTransaction $xaction)
 {
     switch ($xaction->getTransactionType()) {
         case AlmanacServiceTransaction::TYPE_NAME:
             return $object->getName();
     }
     return parent::getCustomTransactionOldValue($object, $xaction);
 }
 protected function getCustomTransactionOldValue(PhabricatorLiskDAO $object, PhabricatorApplicationTransaction $xaction)
 {
     switch ($xaction->getTransactionType()) {
         case AlmanacBindingTransaction::TYPE_INTERFACE:
             return $object->getInterfacePHID();
         case AlmanacBindingTransaction::TYPE_DISABLE:
             return $object->getIsDisabled();
     }
     return parent::getCustomTransactionOldValue($object, $xaction);
 }