/**
* Does update. First deletes, then inserts.
* @param $data
*/
public function updateData(SMWSemanticData $data)
{
// TODO: Should doDataUpdate() be used instead? (See SMWStore class)
$exportData = SMWExporter::getInstance()->makeExportData($data);
$subjectUri = SMWExporter::getInstance()->expandURI($exportData->getSubject()->getUri());
$this->removeDataForURI($subjectUri);
$tripleList = $exportData->getTripleList();
$sparqlUpdateText = "INSERT INTO <> {\n";
// Follows ARC2 SPARQL+ syntax (not SPARQL Update)
foreach ($tripleList as $triple) {
$subject = $triple[0];
$predicate = $triple[1];
$object = $triple[2];
$objectStr = "";
$subjectStr = "";
$predicateStr = "";
if ($object instanceof SMWExpLiteral) {
// TODO: Add escaping for results of getLexicalForm()?
$objectStr = "\"" . $object->getLexicalForm() . "\"" . ($object->getDatatype() == "" ? "" : "^^<" . $object->getDatatype() . ">");
} elseif ($object instanceof SMWExpResource) {
$objectStr = "<" . SMWExporter::getInstance()->expandURI($object->getUri()) . ">";
} else {
$objectStr = "\"\"";
}
if ($subject instanceof SMWExpResource) {
$subjectStr = "<" . SMWExporter::getInstance()->expandURI($subject->getUri()) . ">";
}
if ($predicate instanceof SMWExpResource) {
$predicateStr = "<" . SMWExporter::getInstance()->expandURI($predicate->getUri()) . ">";
}
$sparqlUpdateText .= $subjectStr . " " . $predicateStr . " " . $objectStr . " .\n";
}
$sparqlUpdateText .= "}\n";
wfDebugLog('SPARQL_LOG', $sparqlUpdateText);
// TODO: Remove debug code?
$response = $this->executeArc2Query($sparqlUpdateText);
return parent::updateData($data);
}
/**
* @see SMWStore::refreshData
*
* @todo This method will be overhauled in SMW 1.9 to become cleaner
* and more robust.
*
* @param integer $index
* @param integer $count
* @param mixed $namespaces Array or false
* @param boolean $usejobs
*
* @return decimal between 0 and 1 to indicate the overall progress of the refreshing
*/
public function refreshData(&$index, $count, $namespaces = false, $usejobs = true)
{
$updatejobs = array();
$emptyrange = true;
// was nothing done in this run?
// Update by MediaWiki page id --> make sure we get all pages.
$tids = array();
// Array of ids
for ($i = $index; $i < $index + $count; $i++) {
$tids[] = $i;
}
$titles = Title::newFromIDs($tids);
foreach ($titles as $title) {
if ($namespaces == false || in_array($title->getNamespace(), $namespaces)) {
$updatejobs[] = new SMWUpdateJob($title);
$emptyrange = false;
}
}
// update by internal SMW id --> make sure we get all objects in SMW
$dbr = wfGetDB(DB_SLAVE);
$res = $dbr->select(SMWSql3SmwIds::tableName, array('smw_id', 'smw_title', 'smw_namespace', 'smw_iw', 'smw_subobject'), array("smw_id >= {$index} ", " smw_id < " . $dbr->addQuotes($index + $count)), __METHOD__);
foreach ($res as $row) {
$emptyrange = false;
// note this even if no jobs were created
if ($namespaces && !in_array($row->smw_namespace, $namespaces)) {
continue;
}
// Find page to refresh, even for special properties:
if ($row->smw_title != '' && $row->smw_title[0] != '_') {
$titleKey = $row->smw_title;
} elseif ($row->smw_namespace == SMW_NS_PROPERTY && $row->smw_iw == '' && $row->smw_subobject == '') {
$titleKey = str_replace(' ', '_', SMWDIProperty::findPropertyLabel($row->smw_title));
} else {
$titleKey = '';
}
if ($row->smw_subobject !== '') {
// leave subobjects alone; they ought to be changed with their pages
} elseif (($row->smw_iw === '' || $row->smw_iw == SMW_SQL3_SMWREDIIW) && $titleKey != '') {
// objects representing pages
// TODO: special treament of redirects needed, since the store will
// not act on redirects that did not change according to its records
$title = Title::makeTitleSafe($row->smw_namespace, $titleKey);
if ($title !== null && !$title->exists()) {
$updatejobs[] = new UpdateJob($title);
}
} elseif ($row->smw_iw == SMW_SQL3_SMWIW_OUTDATED) {
// remove outdated internal object references
$dbw = wfGetDB(DB_MASTER);
foreach ($this->store->getPropertyTables() as $proptable) {
if ($proptable->usesIdSubject()) {
$dbw->delete($proptable->getName(), array('s_id' => $row->smw_id), __METHOD__);
}
}
$dbw->delete(SMWSql3SmwIds::tableName, array('smw_id' => $row->smw_id), __METHOD__);
} elseif ($titleKey != '') {
// "normal" interwiki pages or outdated internal objects -- delete
$diWikiPage = new SMWDIWikiPage($titleKey, $row->smw_namespace, $row->smw_iw);
$emptySemanticData = new SMWSemanticData($diWikiPage);
$this->store->updateData($emptySemanticData);
}
}
$dbr->freeResult($res);
wfRunHooks('smwRefreshDataJobs', array(&$updatejobs));
if ($usejobs) {
JobBase::batchInsert($updatejobs);
} else {
foreach ($updatejobs as $job) {
$job->run();
}
}
$nextpos = $index + $count;
if ($emptyrange) {
// nothing found, check if there will be more pages later on
$next1 = $dbr->selectField('page', 'page_id', "page_id >= {$nextpos}", __METHOD__, array('ORDER BY' => "page_id ASC"));
$next2 = $dbr->selectField(SMWSql3SmwIds::tableName, 'smw_id', "smw_id >= {$nextpos}", __METHOD__, array('ORDER BY' => "smw_id ASC"));
$nextpos = $next2 != 0 && $next2 < $next1 ? $next2 : $next1;
}
$max1 = $dbr->selectField('page', 'MAX(page_id)', '', __METHOD__);
$max2 = $dbr->selectField(SMWSql3SmwIds::tableName, 'MAX(smw_id)', '', __METHOD__);
$index = $nextpos ? $nextpos : -1;
return $index > 0 ? $index / max($max1, $max2) : 1;
}
