public function update(BaseSubjectHandler $subjectHandler, CollectorFix $fix, AppliedChangesLogModel $log)
 {
     $data = $fix->getUpdateData();
     $result = $subjectHandler->applySnapshot($data, $fix->getDbVersion());
     $data = $subjectHandler->getSnapshot($result->getId());
     $log->description = $fix->getName();
     $log->originalData = array();
     $log->updateData = $data;
     return $result;
 }
 public function rollback(BaseSubjectHandler $subjectHandler, AppliedChangesLogModel $log)
 {
     return $subjectHandler->applySnapshot($log->originalData);
 }