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|
<?php
namespace SMW\SQLStore\QueryDependency;
use Psr\Log\LoggerAwareTrait;
use SMW\DIWikiPage;
use SMW\SQLStore\SQLStore;
use SMW\Store;
/**
* @license GNU GPL v2+
* @since 2.4
*
* @author mwjames
*/
class DependencyLinksTableUpdater {
use LoggerAwareTrait;
/**
* @var array
*/
private static $updateList = [];
/**
* @var Store
*/
private $store;
/**
* @since 2.4
*
* @param Store $store
*/
public function __construct( Store $store ) {
$this->store = $store;
}
/**
* @since 2.4
*
* @return Store
*/
public function getStore() {
return $this->store;
}
/**
* @since 2.4
*/
public function clear() {
self::$updateList = [];
}
/**
* @since 2.4
*
* @param integer $sid
* @param array|null $dependencyList
*/
public function addToUpdateList( $sid, array $dependencyList = null ) {
if ( $sid == 0 || $dependencyList === null || $dependencyList === [] ) {
return null;
}
if ( !isset( self::$updateList[$sid] ) ) {
return self::$updateList[$sid] = $dependencyList;
}
self::$updateList[$sid] = array_merge( self::$updateList[$sid], $dependencyList );
}
/**
* @since 2.4
*/
public function doUpdate() {
foreach ( self::$updateList as $sid => $dependencyList ) {
if ( $dependencyList === [] ) {
continue;
}
$this->updateDependencyList( $sid, $dependencyList );
self::$updateList[$sid] = [];
}
}
/**
* @since 2.4
*
* @param array $dependencyList
*/
public function deleteDependenciesFromList( array $deleteIdList ) {
$context = [
'method' => __METHOD__,
'role' => 'developer',
'list' => implode( ' ,', $deleteIdList )
];
$this->logger->info( '[QueryDependency] Delete dependencies: {list}', $context );
$connection = $this->store->getConnection( 'mw.db' );
$connection->beginAtomicTransaction( __METHOD__ );
$connection->delete(
SQLStore::QUERY_LINKS_TABLE,
[
's_id' => $deleteIdList
],
__METHOD__
);
$connection->endAtomicTransaction( __METHOD__ );
}
/**
* @since 2.4
*
* @param integer $sid
* @param array $dependencyList
*/
private function updateDependencyList( $sid, array $dependencyList ) {
$connection = $this->store->getConnection( 'mw.db' );
$connection->beginAtomicTransaction( __METHOD__ );
// Before an insert, delete all entries that for the criteria which is
// cheaper then doing an individual upsert or selectRow, this also ensures
// that entries are self-corrected for dependencies matched
$connection->delete(
SQLStore::QUERY_LINKS_TABLE,
[
's_id' => $sid
],
__METHOD__
);
if ( $sid == 0 ) {
return $connection->endAtomicTransaction( __METHOD__ );
}
$inserts = [];
foreach ( $dependencyList as $dependency ) {
if ( !$dependency instanceof DIWikiPage ) {
continue;
}
$oid = $this->getId( $dependency );
// If the ID_TABLE didn't contained an valid ID then we create one ourselves
// to ensure that object entities are tracked from the start
// This can happen when a query is added with object reference that have not
// yet been referenced as annotation and therefore do not recognized as
// value annotation
if ( $oid < 1 && ( ( $oid = $this->createId( $dependency ) ) < 1 ) ) {
continue;
}
$inserts[$sid . $oid] = [
's_id' => $sid,
'o_id' => $oid
];
}
if ( $inserts === [] ) {
return $connection->endAtomicTransaction( __METHOD__ );
}
// MW's multi-array insert needs a numeric dimensional array but the key
// was used with a hash to avoid duplicate entries hence the re-copy
$inserts = array_values( $inserts );
$context = [
'method' => __METHOD__,
'role' => 'developer',
'id' => $sid
];
$this->logger->info( '[QueryDependency] Table insert: {id} ID', $context );
$connection->insert(
SQLStore::QUERY_LINKS_TABLE,
$inserts,
__METHOD__
);
$connection->endAtomicTransaction( __METHOD__ );
}
/**
* @since 2.4
*
* @param DIWikiPage $subject, $subobjectName
* @param string $subobjectName
*/
public function getId( DIWikiPage $subject, $subobjectName = '' ) {
if ( $subobjectName !== '' ) {
$subject = new DIWikiPage(
$subject->getDBkey(),
$subject->getNamespace(),
$subject->getInterwiki(),
$subobjectName
);
}
$id = $this->store->getObjectIds()->getId(
$subject
);
return $id;
}
/**
* @since 2.4
*
* @param DIWikiPage $subject, $subobjectName
* @param string $subobjectName
*/
public function createId( DIWikiPage $subject, $subobjectName = '' ) {
$id = $this->store->getObjectIds()->makeSMWPageID(
$subject->getDBkey(),
$subject->getNamespace(),
$subject->getInterwiki(),
$subobjectName,
false
);
$context = [
'method' => __METHOD__,
'role' => 'developer',
'id' => $id,
'origin' => $subject->getHash() . $subobjectName
];
$this->logger->info( '[QueryDependency] Table update: new {id} ID; {origin}', $context );
return $id;
}
}
|
