public function testPredefinedProperty()
{
$instance = new HashBuilder();
$property = new DIProperty('_MDAT');
$dataItem = $property->getDiWikiPage();
$this->assertEquals($dataItem, $instance->newDiWikiPageFromHash($instance->getHashIdForDiWikiPage($dataItem)));
$this->assertEquals($dataItem, $instance->newDiWikiPageFromHash($instance->createHashIdFromSegments($property->getKey(), SMW_NS_PROPERTY)));
}
/**
* @note SMWSql3SmwIds::getSMWPageID has some issues with the cache as it returned
* 0 even though an object was matchable, using this method is safer then trying
* to encipher getSMWPageID related methods.
*
* It uses the PoolCache which means Lru is in place to avoid memory leakage.
*
* @since 2.4
*
* @param DIWikiPage $subject
*
* @param integer
*/
public function getIDFor(DIWikiPage $subject)
{
// Try to match a predefined property
if ($subject->getNamespace() === SMW_NS_PROPERTY && $subject->getInterWiki() === '') {
$property = DIProperty::newFromUserLabel($subject->getDBKey());
$key = $property->getKey();
// Has a fixed ID?
if (isset(self::$special_ids[$key])) {
return self::$special_ids[$key];
}
// Switch title for fixed properties without a fixed ID (e.g. _MIME is the smw_title)
if (!$property->isUserDefined()) {
$subject = new DIWikiPage($key, SMW_NS_PROPERTY);
}
}
$hash = HashBuilder::getHashIdForDiWikiPage($subject);
if (($id = $this->intermediaryIdCache->fetch($hash)) !== false) {
return $id;
}
$id = 0;
$row = $this->store->getConnection('mw.db')->selectRow(self::TABLE_NAME, array('smw_id'), array('smw_title' => $subject->getDBKey(), 'smw_namespace' => $subject->getNamespace(), 'smw_iw' => $subject->getInterWiki(), 'smw_subobject' => $subject->getSubobjectName()), __METHOD__);
if ($row !== false) {
$id = $row->smw_id;
}
// Legacy
$this->setCache($subject->getDBKey(), $subject->getNamespace(), $subject->getInterWiki(), $subject->getSubobjectName(), $id, $subject->getSortKey());
return $id;
}
