/**
* 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);
}
/**
* 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;
}
