ExternalLinksTable.php

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<?php
 
namespace MediaWiki\Deferred\LinksUpdate;
 
use LinkFilter;
use ParserOutput;
 
class ExternalLinksTable extends LinksTable {
    private $newLinks = [];
    private $existingLinks;
 
    public function setParserOutput( ParserOutput $parserOutput ) {
        $this->newLinks = $parserOutput->getExternalLinks();
    }
 
    protected function getTableName() {
        return 'externallinks';
    }
 
    protected function getFromField() {
        return 'el_from';
    }
 
    protected function getExistingFields() {
        return [ 'el_to' ];
    }
 
    private function getExistingLinks() {
        if ( $this->existingLinks === null ) {
            $this->existingLinks = [];
            foreach ( $this->fetchExistingRows() as $row ) {
                $this->existingLinks[$row->el_to] = true;
            }
        }
        return $this->existingLinks;
    }
 
    protected function getNewLinkIDs() {
        foreach ( $this->newLinks as $link => $unused ) {
            yield (string)$link;
        }
    }
 
    protected function getExistingLinkIDs() {
        foreach ( $this->getExistingLinks() as $link => $unused ) {
            yield (string)$link;
        }
    }
 
    protected function isExisting( $linkId ) {
        return \array_key_exists( $linkId, $this->getExistingLinks() );
    }
 
    protected function isInNewSet( $linkId ) {
        return \array_key_exists( $linkId, $this->newLinks );
    }
 
    protected function insertLink( $linkId ) {
        foreach ( LinkFilter::makeIndexes( $linkId ) as $index ) {
            $this->insertRow( [
                'el_to' => $linkId,
                'el_index' => $index,
                'el_index_60' => substr( $index, 0, 60 ),
            ] );
        }
    }
 
    protected function deleteLink( $linkId ) {
        $this->deleteRow( [ 'el_to' => $linkId ] );
    }
 
    public function getStringArray( $setType ) {
        $ids = $this->getLinkIDs( $setType );
        if ( is_array( $ids ) ) {
            return $ids;
        } else {
            return iterator_to_array( $ids );
        }
    }
}