/**
* Returns an id for a redirect if no redirect is found 0 is returned
*
* @since 2.1
*
* @param string $title DB key
* @param integer $namespace
*
* @return integer
*/
public function findRedirectIdFor($title, $namespace)
{
$hash = HashBuilder::createHashIdFromSegments($title, $namespace);
if ($this->cache->contains($hash)) {
return $this->cache->fetch($hash);
}
$id = $this->select($title, $namespace);
$this->cache->save($hash, $id);
return $id;
}
/**
* @since 2.1
*
* @param integer $id
*
* @return DIWikiPage|null
*/
public function getDataItemForId($id)
{
if (!$this->cache->contains($id)) {
$row = $this->connection->selectRow($this->tableName, array('smw_title', 'smw_namespace', 'smw_iw', 'smw_subobject'), array('smw_id' => $id), __METHOD__);
if ($row === false) {
return null;
}
$hash = HashBuilder::createHashIdFromSegments($row->smw_title, $row->smw_namespace, $row->smw_iw, $row->smw_subobject);
$this->saveToCache($id, $hash);
}
return HashBuilder::newDiWikiPageFromHash($this->cache->fetch($id));
}