OnWikiList.php
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OnWikiList.php
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	<?php

	namespace MediaWiki\Extension\Notifications;

	use MediaWiki\Content\TextContent;
	use MediaWiki\MediaWikiServices;
	use MediaWiki\Title\Title;

	/**
	* Implements ContainmentList interface for sourcing a list of items from a wiki
	* page. Uses the page's latest revision ID as cache key.
	*/
	class OnWikiList implements ContainmentList {
	/**
	* @var Title\|null A title object representing the page to source the list from,
	* or null if the page does not exist.
	*/
	protected $title;

	/**
	* @param int $titleNs An NS_* constant representing the mediawiki namespace of the page
	* @param string $titleString String portion of the wiki page title
	*/
	public function __construct( $titleNs, $titleString ) {
	$title = Title::newFromText( $titleString, $titleNs );
	if ( $title !== null && $title->getArticleID() ) {
	$this->title = $title;
	}
	}

	/**
	* @inheritDoc
	*/
	public function getValues() {
	if ( !$this->title ) {
	return [];
	}

	$article = MediaWikiServices::getInstance()->getWikiPageFactory()->newFromTitle( $this->title );
	if ( !$article->exists() ) {
	return [];
	}

	$content = $article->getContent();
	$text = ( $content instanceof TextContent ) ? $content->getText() : null;
	if ( $text === null ) {
	return [];
	}
	return array_filter( array_map( 'trim', explode( "\n", $text ) ) );
	}

	/**
	* @inheritDoc
	*/
	public function getCacheKey() {
	if ( !$this->title ) {
	return '';
	}

	return (string)$this->title->getLatestRevID();
	}
	}