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<?php |
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namespace SIL; |
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use Onoi\Cache\Cache; |
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use SMW\Store; |
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use SMW\DIWikiPage; |
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use SMW\DIProperty; |
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use Title; |
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/** |
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* Modifies the content language based on the SIL annotation found |
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* for the selected page. |
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* |
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* @license GNU GPL v2+ |
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* @since 1.0 |
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* |
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* @author mwjames |
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*/ |
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class PageContentLanguageOnTheFlyModifier { |
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const POOLCACHE_ID = 'sil.pagecontentlanguage'; |
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/** |
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* @var InterlanguageLinksLookup |
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*/ |
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private $interlanguageLinksLookup; |
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/** |
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* @var Cache |
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*/ |
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private $intermediaryCache; |
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/** |
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* @since 1.0 |
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* |
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* @param InterlanguageLinksLookup $interlanguageLinksLookup |
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* @param Cache $intermediaryCache |
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*/ |
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public function __construct( InterlanguageLinksLookup $interlanguageLinksLookup, Cache $intermediaryCache ) { |
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$this->interlanguageLinksLookup = $interlanguageLinksLookup; |
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$this->intermediaryCache = $intermediaryCache; |
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} |
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/** |
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* @since 1.3 |
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* |
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* @param Title $title |
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* @param string &languageCode |
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*/ |
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public function addToIntermediaryCache( Title $title, $languageCode ) { |
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$this->intermediaryCache->save( $this->getHashFrom( $title ), $languageCode ); |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param Title $title |
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* @param Language|string &$pageLanguage |
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* |
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* @return string |
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*/ |
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public function getPageContentLanguage( Title $title, $pageLanguage ) { |
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$hash = $this->getHashFrom( $title ); |
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// Convert language codes from BCP 47 to lowercase to ensure that codes |
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// are matchable against `Language::fetchLanguageNames` for languages like |
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// zh-Hans etc. |
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if ( ( $cachedLanguageCode = $this->intermediaryCache->fetch( $hash ) ) ) { |
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return strtolower( $cachedLanguageCode ); |
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} |
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$lookupLanguageCode = $this->interlanguageLinksLookup->findPageLanguageForTarget( $title ); |
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if ( $lookupLanguageCode !== null && $lookupLanguageCode !== '' ) { |
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$pageLanguage = $lookupLanguageCode; |
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} |
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if ( $pageLanguage instanceof \Language ) { |
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$pageLanguage = $pageLanguage->getCode(); |
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} |
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$pageLanguage = strtolower( $pageLanguage ); |
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$this->intermediaryCache->save( $hash, $pageLanguage ); |
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return $pageLanguage; |
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} |
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private function getHashFrom( Title $title ) { |
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return md5( $title->getPrefixedText() ); |
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} |
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} |
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SemanticMediaWiki /
SemanticInterlanguageLinks
