9bfb75ff90
Most used non-namespaced class! Bug: T353458 Change-Id: I4c2cbb0a808b3881a4d6ca489eee5d8c8ebf26cf
131 lines
3.2 KiB
PHP
131 lines
3.2 KiB
PHP
<?php
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namespace MediaWiki\Deferred\LinksUpdate;
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use MediaWiki\DAO\WikiAwareEntity;
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use MediaWiki\Page\PageReferenceValue;
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use MediaWiki\Parser\ParserOutput;
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use MediaWiki\Title\Title;
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use PurgeJobUtils;
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/**
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* imagelinks
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*
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* Link ID format: string image name
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*
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* @since 1.38
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*/
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class ImageLinksTable extends TitleLinksTable {
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/**
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* @var array New links with the name in the key, value arbitrary
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*/
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private $newLinks;
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/**
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* @var array Existing links with the name in the key, value arbitrary
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*/
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private $existingLinks;
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public function setParserOutput( ParserOutput $parserOutput ) {
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$this->newLinks = $parserOutput->getImages();
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}
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protected function getTableName() {
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return 'imagelinks';
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}
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protected function getFromField() {
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return 'il_from';
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}
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protected function getExistingFields() {
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return [ 'il_to' ];
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}
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protected function getNewLinkIDs() {
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foreach ( $this->newLinks as $link => $unused ) {
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yield (string)$link;
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}
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}
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/**
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* Get existing links with the name in the key, value arbitrary.
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*
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* @return array
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*/
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private function getExistingLinks() {
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if ( $this->existingLinks === null ) {
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$this->existingLinks = [];
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foreach ( $this->fetchExistingRows() as $row ) {
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$this->existingLinks[$row->il_to] = true;
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}
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}
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return $this->existingLinks;
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}
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protected function getExistingLinkIDs() {
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foreach ( $this->getExistingLinks() as $link => $unused ) {
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yield (string)$link;
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}
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}
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protected function isExisting( $linkId ) {
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return \array_key_exists( $linkId, $this->getExistingLinks() );
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}
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protected function isInNewSet( $linkId ) {
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return \array_key_exists( $linkId, $this->newLinks );
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}
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protected function needForcedLinkRefresh() {
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return $this->isCrossNamespaceMove();
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}
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protected function insertLink( $linkId ) {
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$this->insertRow( [
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'il_from_namespace' => $this->getSourcePage()->getNamespace(),
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'il_to' => $linkId
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] );
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}
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protected function deleteLink( $linkId ) {
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$this->deleteRow( [ 'il_to' => $linkId ] );
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}
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protected function makePageReferenceValue( $linkId ): PageReferenceValue {
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return new PageReferenceValue( NS_FILE, $linkId, WikiAwareEntity::LOCAL );
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}
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protected function makeTitle( $linkId ): Title {
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return Title::makeTitle( NS_FILE, $linkId );
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}
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protected function deduplicateLinkIds( $linkIds ) {
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if ( !is_array( $linkIds ) ) {
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$linkIds = iterator_to_array( $linkIds );
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}
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return array_unique( $linkIds );
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}
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protected function finishUpdate() {
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// A update of namespace on cross namespace move is detected as insert + delete,
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// but the updates are not needed there.
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$allInsertedLinks = array_column( $this->insertedLinks, 0 );
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$allDeletedLinks = array_column( $this->deletedLinks, 0 );
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$insertedLinks = array_diff( $allInsertedLinks, $allDeletedLinks );
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$deletedLinks = array_diff( $allDeletedLinks, $allInsertedLinks );
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$this->invalidateImageDescriptions( $insertedLinks, $deletedLinks );
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}
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/**
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* Invalidate all image description pages which had links added or removed
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* @param array $insertedLinks
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* @param array $deletedLinks
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*/
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private function invalidateImageDescriptions( array $insertedLinks, array $deletedLinks ) {
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PurgeJobUtils::invalidatePages(
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$this->getDB(), NS_FILE,
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array_merge( $insertedLinks, $deletedLinks ) );
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}
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}
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