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<?php
/**
* This file contains an unmanaged message group implementation.
*
* @file
* @author Niklas Laxström
* @author Siebrand Mazeland
* @license GPL-2.0-or-later
*/
use MediaWiki\MediaWikiServices;
use MediaWiki\Revision\SlotRecord;
/**
* Wraps the translatable page sections into a message group.
* @ingroup PageTranslation MessageGroup
*/
class WikiPageMessageGroup extends MessageGroupOld implements IDBAccessObject {
/**
* @var Title|string
*/
protected $title;
/**
* @var int
*/
protected $namespace = NS_TRANSLATIONS;
/**
* @param string $id
* @param Title|string $title
*/
public function __construct( $id, $title ) {
$this->id = $id;
$this->title = $title;
}
public function getSourceLanguage() {
return $this->getTitle()->getPageLanguage()->getCode();
}
/**
* @return Title
*/
public function getTitle() {
if ( is_string( $this->title ) ) {
$this->title = Title::newFromText( $this->title );
}
return $this->title;
}
/**
* Only used for caching to avoid repeating database queries
* for example during message index rebuild.
*/
protected $definitions;
/**
* @return string[]
*/
public function getDefinitions() {
if ( is_array( $this->definitions ) ) {
return $this->definitions;
}
$title = $this->getTitle();
$dbr = TranslateUtils::getSafeReadDB();
$tables = [ 'page', 'translate_sections' ];
$vars = [ 'trs_key', 'trs_text' ];
$conds = [
'page_namespace' => $title->getNamespace(),
'page_title' => $title->getDBkey(),
// The join condition
'page_id = trs_page',
];
$options = [ 'ORDER BY' => 'trs_order' ];
$res = $dbr->select( $tables, $vars, $conds, __METHOD__, $options );
$defs = [];
foreach ( $res as $r ) {
$section = new TPSection();
$section->text = $r->trs_text;
$defs[$r->trs_key] = $section->getTextWithVariables();
}
$groupKeys = $this->makeGroupKeys( array_keys( $defs ) );
$this->definitions = array_combine( $groupKeys, array_values( $defs ) );
return $this->definitions;
}
public function makeGroupKeys( array $keys ): array {
$prefix = $this->getTitle()->getPrefixedDBkey() . '/';
foreach ( $keys as $index => $key ) {
$keys[$index] = $prefix . str_replace( ' ', '_', $key );
}
return $keys;
}
/**
* Overriding the getLabel method and deriving the label from the title.
* Mainly to reduce the amount of data stored in the cache.
*
* @param IContextSource|null $context
* @return string
*/
public function getLabel( IContextSource $context = null ) {
return $this->getTitle()->getPrefixedText();
}
/**
* Clear caches to avoid stale data.
*
* For example JobQueue can run for a longer time, and stale definitions would
* cause the total number of messages to be incorrect.
*
* @since 2016.04
*/
public function clearCaches() {
$this->definitions = null;
}
public function load( $code ) {
if ( $this->isSourceLanguage( $code ) ) {
return $this->getDefinitions();
}
return [];
}
/**
* Returns of stored translation of message specified by the $key in language
* code $code.
*
* @param string $key Message key
* @param string $code Language code
* @param int $flags READ_* class constant bitfield
* @return string|null Stored translation or null.
*/
public function getMessage( $key, $code, $flags = self::READ_LATEST ) {
if ( $this->isSourceLanguage( $code ) ) {
$stuff = $this->load( $code );
$title = Title::newFromText( $key );
if ( $title ) {
$key = $title->getPrefixedDBkey();
}
return $stuff[$key] ?? null;
}
$title = Title::makeTitleSafe( $this->getNamespace(), "$key/$code" );
if ( PageTranslationHooks::$renderingContext ) {
$revFlags = IDBAccessObject::READ_NORMAL; // bug T95753
} else {
$revFlags = ( $flags & self::READ_LATEST ) == self::READ_LATEST
? IDBAccessObject::READ_LATEST
: IDBAccessObject::READ_NORMAL;
}
$rev = MediaWikiServices::getInstance()
->getRevisionLookup()
->getRevisionByTitle( $title, false, $revFlags );
if ( !$rev ) {
return null;
}
return ContentHandler::getContentText( $rev->getContent( SlotRecord::MAIN ) );
}
/**
* @return MessageValidator
*/
public function getValidator() {
$validator = new MessageValidator( $this->getId() );
$validator->setValidators( [
[ 'id' => 'MediaWikiPlural' ],
[ 'id' => 'BraceBalance' ]
] );
return $validator;
}
public function getInsertablesSuggester() {
return new TranslatablePageInsertablesSuggester();
}
public function getDescription( IContextSource $context = null ) {
$title = $this->getTitle()->getPrefixedText();
$target = ":$title";
$pageLanguageCode = $this->getSourceLanguage();
$inLanguageCode = $context ? $context->getLanguage()->getCode() : null;
$languageName = Language::fetchLanguageName( $pageLanguageCode, $inLanguageCode );
// Allow for adding a custom group description by using
// "MediaWiki:Tp-custom-<group ID>".
$customText = '';
$msg = wfMessage( 'tp-custom-' . $this->id );
self::addContext( $msg, $context );
if ( $msg->exists() ) {
$customText = $msg->plain();
}
$msg = wfMessage( 'translate-tag-page-desc', $title, $target, $languageName, $pageLanguageCode );
self::addContext( $msg, $context );
return $msg->plain() . $customText;
}
}
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