/**
* @since 2.2
*
* @return ConceptCache
*/
public function newMasterConceptCache()
{
$conceptQueryResolver = new ConceptQueryResolver($this->newMasterQueryEngine());
$conceptQueryResolver->setConceptFeatures($GLOBALS['smwgQConceptFeatures']);
$conceptCache = new ConceptCache($this->store, $conceptQueryResolver);
$conceptCache->setUpperLimit($GLOBALS['smwgQMaxLimit']);
return $conceptCache;
}
public function testPrepareQuerySegmentForNull()
{
$querySegmentListBuilder = $this->getMockBuilder('\\SMW\\SQLStore\\QueryEngine\\QuerySegmentListBuilder')->disableOriginalConstructor()->getMock();
$querySegmentListProcessor = $this->getMockBuilder('\\SMW\\SQLStore\\QueryEngine\\QuerySegmentListProcessor')->disableOriginalConstructor()->getMock();
$queryEngine = $this->getMockBuilder('\\SMW\\SQLStore\\QueryEngine\\QueryEngine')->disableOriginalConstructor()->getMock();
$queryEngine->expects($this->any())->method('getQuerySegmentListBuilder')->will($this->returnValue($querySegmentListBuilder));
$queryEngine->expects($this->any())->method('getQuerySegmentListProcessor')->will($this->returnValue($querySegmentListProcessor));
$instance = new ConceptQueryResolver($queryEngine);
$this->assertNull($instance->prepareQuerySegmentFor('[[Foo]]'));
}
/**
* @param Title $concept
*
* @return string[] array with error messages
*/
public function refresh(Title $concept)
{
global $wgDBtype;
$db = $this->store->getConnection();
$cid = $this->store->smwIds->getSMWPageID($concept->getDBkey(), SMW_NS_CONCEPT, '', '');
$cid_c = $this->getIdOfConcept($concept);
if ($cid !== $cid_c) {
return array("Skipping redirect concept.");
}
$conceptQueryText = $this->getConceptCacheText($concept);
if ($conceptQueryText === false) {
$this->deleteConceptById($cid);
return array("No concept description found.");
}
// Pre-process query:
$querySegment = $this->conceptQueryResolver->prepareQuerySegmentFor($conceptQueryText);
if ($querySegment === null || $querySegment->joinfield === '' || $querySegment->joinTable === '') {
return array();
}
// TODO: catch db exception
$db->delete(SMWSQLStore3::CONCEPT_CACHE_TABLE, array('o_id' => $cid), __METHOD__);
$concCacheTableName = $db->tablename(SMWSQLStore3::CONCEPT_CACHE_TABLE);
if ($wgDBtype == 'postgres') {
// PostgresQL: no INSERT IGNORE, check for duplicates explicitly
$where = $querySegment->where . ($querySegment->where ? ' AND ' : '') . "NOT EXISTS (SELECT NULL FROM {$concCacheTableName}" . " WHERE {$concCacheTableName}.s_id = {$querySegment->alias}.s_id " . " AND {$concCacheTableName}.o_id = {$querySegment->alias}.o_id )";
} else {
// MySQL just uses INSERT IGNORE, no extra conditions
$where = $querySegment->where;
}
// TODO: catch db exception
$db->query("INSERT " . ($wgDBtype == 'postgres' ? '' : 'IGNORE ') . "INTO {$concCacheTableName}" . " SELECT DISTINCT {$querySegment->joinfield} AS s_id, {$cid} AS o_id FROM " . $db->tableName($querySegment->joinTable) . " AS {$querySegment->alias}" . $querySegment->from . ($where ? ' WHERE ' : '') . $where . " LIMIT " . $this->upperLimit, __METHOD__);
$db->update('smw_fpt_conc', array('cache_date' => strtotime("now"), 'cache_count' => $db->affectedRows()), array('s_id' => $cid), __METHOD__);
return array();
}
/**
* @param Title $concept
*
* @return string[] array with error messages
*/
public function refresh(Title $concept)
{
global $wgDBtype;
$db = $this->store->getConnection();
$cid = $this->store->smwIds->getSMWPageID($concept->getDBkey(), SMW_NS_CONCEPT, '', '');
$cid_c = $this->getIdOfConcept($concept);
if ($cid !== $cid_c) {
return array("Skipping redirect concept.");
}
$conceptQueryText = $this->getConceptCacheText($concept);
if ($conceptQueryText === false) {
$this->deleteConceptById($cid);
return array("No concept description found.");
}
// Pre-process query:
$querySegment = $this->conceptQueryResolver->prepareQuerySegmentFor($conceptQueryText);
if ($querySegment === null || $querySegment->joinfield === '' || $querySegment->joinTable === '') {
return array();
}
// TODO: catch db exception
$db->delete(SMWSQLStore3::CONCEPT_CACHE_TABLE, array('o_id' => $cid), __METHOD__);
$concCacheTableName = $db->tablename(SMWSQLStore3::CONCEPT_CACHE_TABLE);
// MySQL just uses INSERT IGNORE, no extra conditions
$where = $querySegment->where;
if ($wgDBtype == 'postgres') {
// PostgresQL: no INSERT IGNORE, check for duplicates explicitly
// This code doesn't work and has created all sorts of issues therefore use LEFT JOIN instead
// http://people.planetpostgresql.org/dfetter/index.php?/archives/48-Adding-Only-New-Rows-INSERT-IGNORE,-Done-Right.html
// $where = $querySegment->where . ( $querySegment->where ? ' AND ' : '' ) .
// "NOT EXISTS (SELECT NULL FROM $concCacheTableName" .
// " WHERE {$concCacheTableName}.s_id = {$querySegment->alias}.s_id " .
// " AND {$concCacheTableName}.o_id = {$querySegment->alias}.o_id )";
$querySegment->from = str_replace('INNER JOIN', 'LEFT JOIN', $querySegment->from);
}
$db->query("INSERT " . ($wgDBtype == 'postgres' ? '' : 'IGNORE ') . "INTO {$concCacheTableName}" . " SELECT DISTINCT {$querySegment->joinfield} AS s_id, {$cid} AS o_id FROM " . $db->tableName($querySegment->joinTable) . " AS {$querySegment->alias}" . $querySegment->from . ($where ? ' WHERE ' : '') . $where . " LIMIT " . $this->upperLimit, __METHOD__);
$db->update('smw_fpt_conc', array('cache_date' => strtotime("now"), 'cache_count' => $db->affectedRows()), array('s_id' => $cid), __METHOD__);
return array();
}
