break;
case 'saveCategories':
$document = Document::fromDatabase($_POST['documentID']);
$document->changeCategories(json_decode(stripslashes($_POST['categories']), true));
break;
case 'getSnapshots':
$document = Document::fromDatabase($_POST['documentID']);
echo json_encode(Snapshot::getList($document));
break;
case 'saveSnapshot':
$document = Document::fromDatabase($_POST['documentID']);
Snapshot::create($document, json_decode(stripslashes($_POST['documentData']), true), $_POST['timestamp']);
break;
case 'loadSnapshot':
$document = Document::fromDatabase($_POST['documentID']);
echo json_encode(Snapshot::getData($document, $_POST['snapshotID']));
break;
case 'deleteDocument':
$document = Document::fromDatabase($_POST['id']);
$document->delete();
break;
case 'loadDocuments':
echo json_encode(Document::getList(Document::FORMAT_JSON));
break;
case 'createDocument':
$document = Document::create($_POST['name']);
echo $document->getId();
break;
case 'renameDocument':
$document = Document::fromDatabase($_POST['id']);
$document->rename($_POST['newname']);
