mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/TemplateData
synced 2024-11-24 16:03:45 +00:00
220 lines
7.7 KiB
PHP
220 lines
7.7 KiB
PHP
<?php
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/**
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* Hooks for TemplateData extension
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*
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* @file
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* @ingroup Extensions
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*/
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class TemplateDataHooks {
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/**
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* Register parser hooks
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* @param Parser &$parser
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* @return bool
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*/
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public static function onParserFirstCallInit( &$parser ) {
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$parser->setHook( 'templatedata', [ 'TemplateDataHooks', 'render' ] );
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return true;
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}
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/**
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* Conditionally register the jquery.uls.data module, in case they've already been
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* registered by the UniversalLanguageSelector extension or the VisualEditor extension.
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*
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* @param ResourceLoader &$resourceLoader
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*/
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public static function onResourceLoaderRegisterModules( ResourceLoader &$resourceLoader ) {
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$resourceModules = $resourceLoader->getConfig()->get( 'ResourceModules' );
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$name = 'jquery.uls.data';
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if ( !isset( $resourceModules[$name] ) && !$resourceLoader->isModuleRegistered( $name ) ) {
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$resourceLoader->register( [
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'jquery.uls.data' => [
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'localBasePath' => dirname( __DIR__ ),
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'remoteExtPath' => 'TemplateData',
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'scripts' => [
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'lib/jquery.uls/src/jquery.uls.data.js',
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'lib/jquery.uls/src/jquery.uls.data.utils.js',
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],
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'targets' => [ 'desktop', 'mobile' ],
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]
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] );
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}
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}
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/**
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* @param WikiPage &$page
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* @param User &$user
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* @param Content &$content
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* @param string &$summary
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* @param bool $minor
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* @param bool|null $watchthis
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* @param string $sectionanchor
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* @param int &$flags
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* @param Status &$status
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* @return bool
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*/
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public static function onPageContentSave( WikiPage &$page, &$user, &$content, &$summary, $minor,
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$watchthis, $sectionanchor, &$flags, &$status
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) {
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// The PageContentSave hook provides raw $text, but not $parser because at this stage
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// the page is not actually parsed yet. Which means we can't know whether self::render()
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// got a valid tag or not. Looking at $text directly is not a solution either as
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// it may not be in the current page (it can be transcluded).
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// Since there is no later hook that allows aborting the save and showing an error,
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// we will have to trigger the parser ourselves.
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// Fortunately this causes no overhead since the below (copied from WikiPage::doEditContent,
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// right after this hook is ran) has guards that lazy-init and return early if called again
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// later by the real WikiPage.
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// Specify format the same way the API and EditPage do to avoid extra parsing
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$format = $content->getContentHandler()->getDefaultFormat();
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$editInfo = $page->prepareContentForEdit( $content, null, $user, $format );
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$templateDataStatus = $editInfo->output->getExtensionData( 'TemplateDataStatus' );
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if ( $templateDataStatus instanceof Status && !$templateDataStatus->isOK() ) {
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// Abort edit, show error message from TemplateDataBlob::getStatus
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$status->merge( $templateDataStatus );
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return false;
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}
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return true;
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}
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/**
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* Parser hook registering the GUI module only in edit pages.
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*
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* @param EditPage $editPage
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* @param OutputPage $output
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* @return bool
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*/
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public static function onEditPage( EditPage $editPage, OutputPage $output ) {
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global $wgTemplateDataUseGUI;
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if ( $wgTemplateDataUseGUI ) {
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if ( $output->getTitle()->inNamespace( NS_TEMPLATE ) ) {
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$output->addModules( 'ext.templateDataGenerator.editTemplatePage' );
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}
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}
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return true;
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}
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/**
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* Parser hook for <templatedata>.
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* If there is any JSON provided, render the template documentation on the page.
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*
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* @param string $input The content of the tag.
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* @param array $args The attributes of the tag.
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* @param Parser $parser Parser instance available to render
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* wikitext into html, or parser methods.
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* @param PPFrame $frame Can be used to see what template parameters ("{{{1}}}", etc.)
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* this hook was used with.
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*
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* @return string HTML to insert in the page.
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*/
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public static function render( $input, $args, Parser $parser, $frame ) {
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$ti = TemplateDataBlob::newFromJSON( wfGetDB( DB_REPLICA ), $input );
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$status = $ti->getStatus();
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if ( !$status->isOK() ) {
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$parser->getOutput()->setExtensionData( 'TemplateDataStatus', $status );
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return '<div class="errorbox">' . $status->getHTML() . '</div>';
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}
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// Store the blob as page property for retrieval by ApiTemplateData.
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// But, don't store it if we're parsing a doc sub page, because:
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// - The doc subpage should not appear in ApiTemplateData as a documented
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// template itself, which is confusing to users (T54448).
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// - The doc subpage should not appear at Special:PagesWithProp.
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// - Storing the blob twice in the database is inefficient (T52512).
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$title = $parser->getTitle();
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$docPage = wfMessage( 'templatedata-doc-subpage' )->inContentLanguage();
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if ( !$title->isSubpage() || $title->getSubpageText() !== $docPage->plain() ) {
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$parser->getOutput()->setProperty( 'templatedata', $ti->getJSONForDatabase() );
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}
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$parser->getOutput()->addModuleStyles( [
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'ext.templateData',
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'ext.templateData.images',
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'jquery.tablesorter.styles',
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] );
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$parser->getOutput()->addModules( 'jquery.tablesorter' );
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$parser->getOutput()->setEnableOOUI( true );
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$userLang = $parser->getOptions()->getUserLangObj();
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// FIXME: this hard-codes default skin, but it is needed because
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// ::getHtml() will need a theme singleton to be set.
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OutputPage::setupOOUI( 'bogus', $userLang->getDir() );
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return $ti->getHtml( $userLang );
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}
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/**
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* Fetch templatedata for an array of titles.
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*
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* @todo Document this hook
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*
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* The following questions are yet to be resolved.
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* (a) Should we extend functionality to looking up an array of titles instead of one?
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* The signature allows for an array of titles to be passed in, but the
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* current implementation is not optimized for the multiple-title use case.
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* (b) Should this be a lookup service instead of this faux hook?
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* This will be resolved separately.
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*
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* @param array $tplTitles
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* @param stdclass[] &$tplData
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*/
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public static function onParserFetchTemplateData( array $tplTitles, array &$tplData ): void {
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$tplData = [];
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// This inefficient implementation is currently tuned for
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// Parsoid's use case where it requests info for exactly one title.
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// For a real batch use case, this code will need an overhaul.
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foreach ( $tplTitles as $tplTitle ) {
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$title = Title::newFromText( $tplTitle );
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if ( !$title ) {
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// Invalid title
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$tplData[$tplTitle] = null;
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continue;
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}
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if ( $title->isRedirect() ) {
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$title = ( new WikiPage( $title ) )->getRedirectTarget();
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if ( !$title ) {
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// Invalid redirecting title
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$tplData[$tplTitle] = null;
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continue;
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}
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}
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if ( !$title->exists() ) {
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$tplData[$tplTitle] = (object)[ "missing" => true ];
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continue;
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}
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// FIXME: PageProps returns takes titles but returns by page id.
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// This means we need to do our own look up and hope it matches.
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// Spoiler, sometimes it won't. When that happens, the user won't
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// get any templatedata-based interfaces for that template.
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// The fallback is to not serve data for that template, which
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// the clients have to support anyway, so the impact is minimal.
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// It is also expected that such race conditions resolve themselves
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// after a few seconds so the old "try again later" should cover this.
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$pageId = $title->getArticleID();
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$props = PageProps::getInstance()->getProperties( $title, 'templatedata' );
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if ( !isset( $props[$pageId] ) ) {
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// No templatedata
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$tplData[$tplTitle] = (object)[ "notemplatedata" => true ];
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continue;
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}
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$tdb = TemplateDataBlob::newFromDatabase( wfGetDB( DB_REPLICA ), $props[$pageId] );
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$status = $tdb->getStatus();
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if ( !$status->isOK() ) {
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// Invalid data. Parsoid has no use for the error.
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$tplData[$tplTitle] = (object)[ "notemplatedata" => true ];
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continue;
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}
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$tplData[$tplTitle] = $tdb->getData();
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}
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}
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}
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