/**
* Display list of metadata versions to compare with the selected version
*
* @return unknown
*/
function do_startComparison()
{
$comparison_version = KTUtil::arrayGet($_REQUEST, 'fComparisonVersion');
$oDocument =& Document::get($this->oDocument->getId(), $comparison_version);
if (PEAR::isError($oDocument)) {
return $this->redirectToMain(_kt('The document you selected was invalid'));
}
if (!Permission::userHasDocumentReadPermission($oDocument)) {
return $this->errorRedirectToMain(_kt('You are not allowed to view this document'));
}
$this->oDocument =& $oDocument;
$this->oPage->setSecondaryTitle($oDocument->getName());
$this->oPage->setBreadcrumbDetails(_kt('Select Document Version to compare against'));
$aMetadataVersions = KTDocumentMetadataVersion::getByDocument($oDocument);
$aVersions = array();
foreach ($aMetadataVersions as $oVersion) {
$aVersions[] = Document::get($oDocument->getId(), $oVersion->getId());
}
$oTemplating =& KTTemplating::getSingleton();
$oTemplate = $oTemplating->loadTemplate('ktcore/document/comparison_version_select');
$aTemplateData = array('context' => $this, 'document_id' => $this->oDocument->getId(), 'document' => $oDocument, 'versions' => $aVersions, 'downloadaction' => $oAction);
return $oTemplate->render($aTemplateData);
}
function _fieldValues()
{
static $lastFolder = null;
if (is_null($lastFolder) || $lastFolder->getID() !== $this->iFolderId) {
$lastFolder = Folder::get($this->iFolderId);
if (PEAR::isError($lastFolder)) {
$lastFolder = null;
}
}
if (!is_null($lastFolder)) {
$this->sFullPath = 'pending';
if (!is_null($this->getMetadataVersionId())) {
$metadata = KTDocumentMetadataVersion::get($this->getMetadataVersionId());
$name = $metadata->getName();
if ($lastFolder->getId() == 1) {
$this->sFullPath = $name;
} else {
$this->sFullPath = $lastFolder->getFullPath() . '/' . $name;
}
}
$this->sParentFolderIds = $lastFolder->getParentFolderIDs();
}
return parent::_fieldValues();
}
function getFieldsToSelect()
{
if (self::$_versionFields == null) {
$sTable = KTUtil::getTableName('document_metadata_version');
$aFields = DBUtil::getResultArray(array("DESCRIBE {$sTable}"));
$result = array();
for ($i = 0; $i < count($aFields); $i++) {
$result[KTDocumentMetaDataVersion::getFieldType($aFields[$i]['Type']) . KTUtil::camelize($aFields[$i]['Field'])] = $aFields[$i]['Field'];
}
self::$_versionFields = $result;
}
return self::$_versionFields;
}
/**
* This returns the version history on the document.
*
* @author KnowledgeTree Team
* @access public
* @return array The version history
*/
function get_version_history()
{
$metadata_versions = KTDocumentMetadataVersion::getByDocument($this->document);
$config = KTConfig::getSingleton();
$wsversion = $config->get('webservice/version', LATEST_WEBSERVICE_VERSION);
$versions = array();
foreach ($metadata_versions as $version) {
$document =& Document::get($this->documentid, $version->getId());
$version = array();
$userid = $document->getModifiedUserId();
$user = User::get($userid);
$username = '******';
if (!PEAR::isError($user)) {
$username = is_null($user) ? 'n/a' : $user->getName();
}
$version['user'] = $username;
$version['metadata_version'] = $document->getMetadataVersion();
$version['content_version'] = $document->getVersion();
if ($wsversion >= 2) {
$version['metadata_version'] = (int) $version['metadata_version'];
$version['content_version'] = (double) $version['content_version'];
}
$versions[] = $version;
}
return $versions;
}
/**
* Delete a selected version of the document.
*/
function deleteVersion($oDocument, $iVersionID, $sReason)
{
$oDocument =& KTUtil::getObject('Document', $oDocument);
$oVersion =& KTDocumentMetadataVersion::get($iVersionID);
$oStorageManager =& KTStorageManagerUtil::getSingleton();
global $default;
if (empty($sReason)) {
return PEAR::raiseError(_kt('Deletion requires a reason'));
}
if (PEAR::isError($oDocument) || $oDocument == false) {
return PEAR::raiseError(_kt('Invalid document object.'));
}
if (PEAR::isError($oVersion) || $oVersion == false) {
return PEAR::raiseError(_kt('Invalid document version object.'));
}
$iContentId = $oVersion->getContentVersionId();
$oContentVersion = KTDocumentContentVersion::get($iContentId);
if (PEAR::isError($oContentVersion) || $oContentVersion == false) {
return PEAR::raiseError(_kt('Invalid document content version object.'));
}
// Check that the document content is not the same as the current content version
$sDocStoragePath = $oDocument->getStoragePath();
$sVersionStoragePath = $oContentVersion->getStoragePath();
if ($sDocStoragePath == $sVersionStoragePath) {
return PEAR::raiseError(_kt("Can't delete version: content is the same as the current document content."));
}
DBUtil::startTransaction();
// now delete the document version
$res = $oStorageManager->deleteVersion($oVersion);
if (PEAR::isError($res) || $res == false) {
//could not delete the document version from the file system
$default->log->error('Deletion: Filesystem error deleting the metadata version ' . $oVersion->getMetadataVersion() . ' of the document ' . $oDocument->getFileName() . ' from folder ' . Folder::getFolderPath($oDocument->getFolderID()) . ' id=' . $oDocument->getFolderID());
// we use a _real_ transaction here ...
DBUtil::rollback();
return PEAR::raiseError(_kt('There was a problem deleting the document from storage.'));
}
// change status for the metadata version
$oVersion->setStatusId(VERSION_DELETED);
$oVersion->update();
// set the storage path to empty
// $oContentVersion->setStoragePath('');
DBUtil::commit();
}
