/**
* Update user revision.
*
* @param Revision $revision
*
* @return Revision
* @throws ClassContentException Occurs on illegal revision state
*/
public function update(Revision $revision)
{
switch ($revision->getState()) {
case Revision::STATE_ADDED:
throw new ClassContentException('Content is not versioned yet', ClassContentException::REVISION_ADDED);
break;
case Revision::STATE_MODIFIED:
try {
$this->checkContent($revision);
throw new ClassContentException('Content is already up-to-date', ClassContentException::REVISION_UPTODATE);
} catch (ClassContentException $e) {
if (ClassContentException::REVISION_OUTOFDATE == $e->getCode()) {
return $this->loadSubcontents($revision);
} else {
throw $e;
}
}
break;
case Revision::STATE_CONFLICTED:
throw new ClassContentException('Content is in conflict, resolve or revert it', ClassContentException::REVISION_CONFLICTED);
break;
}
throw new ClassContentException('Content is already up-to-date', ClassContentException::REVISION_UPTODATE);
}
