1 files changed, 242 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/PropertyLabelFinder.php b/www/wiki/extensions/SemanticMediaWiki/src/PropertyLabelFinder.php
new file mode 100644
index 00000000..4af23d67
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/PropertyLabelFinder.php
@@ -0,0 +1,242 @@
+<?php
+
+namespace SMW;
+
+/**
+ * @license GNU GPL v2+
+ * @since 2.2
+ *
+ * @author mwjames
+ */
+class PropertyLabelFinder {
+
+	/**
+	 * @var Store
+	 */
+	private $store;
+
+	/**
+	 * Array with entries "property id" => "property label"
+	 *
+	 * @var string[]
+	 */
+	private $languageDependentPropertyLabels = [];
+
+	/**
+	 * Array with entries "property label" => "property id"
+	 *
+	 * @var string[]
+	 */
+	private $canonicalPropertyLabels = [];
+
+	/**
+	 * @var string[]
+	 */
+	private $canonicalDatatypeLabels = [];
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param Store $store
+	 * @param array $languageDependentPropertyLabels
+	 * @param array $canonicalPropertyLabels
+	 */
+	public function __construct( Store $store, array $languageDependentPropertyLabels = [], array $canonicalPropertyLabels = [], array $canonicalDatatypeLabels = [] ) {
+		$this->store = $store;
+		$this->languageDependentPropertyLabels = $languageDependentPropertyLabels;
+		$this->canonicalPropertyLabels = $canonicalPropertyLabels;
+		$this->canonicalDatatypeLabels = $canonicalDatatypeLabels;
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return array
+	 */
+	public function getKownPredefinedPropertyLabels() {
+		return $this->languageDependentPropertyLabels;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $id
+	 *
+	 * @return string|boolean
+	 */
+	public function findCanonicalPropertyLabelById( $id ) {
+
+		// Due to mapped lists avoid possible mismatch on dataTypes
+		// (e.g. Text -> _TEXT vs. Text -> _txt)
+		if ( ( $label = array_search( $id, $this->canonicalDatatypeLabels ) ) ) {
+			return $label;
+		}
+
+		return array_search( $id, $this->canonicalPropertyLabels );
+	}
+
+	/**
+	 * @note An empty string is returned for incomplete translation (language
+	 * bug) or deliberately invisible property
+	 *
+	 * @since 2.2
+	 *
+	 * @param string $id
+	 *
+	 * @return string
+	 */
+	public function findPropertyLabelById( $id ) {
+
+		if ( array_key_exists( $id, $this->languageDependentPropertyLabels ) ) {
+			return $this->languageDependentPropertyLabels[$id];
+		}
+
+		return '';
+	}
+
+	/**
+	 * @note An empty string is returned for incomplete translation (language
+	 * bug) or deliberately invisible property
+	 *
+	 * @since 2.5
+	 *
+	 * @param string $id
+	 * @param string $languageCode
+	 *
+	 * @return string
+	 */
+	public function findPropertyLabelFromIdByLanguageCode( $id, $languageCode = '' ) {
+
+		if ( $languageCode === '' ) {
+			return $this->findPropertyLabelById( $id );
+		}
+
+		$lang = Localizer::getInstance()->getLang(
+			mb_strtolower( trim( $languageCode ) )
+		);
+
+		$labels = $lang->getPropertyLabels() + $lang->getDatatypeLabels();
+
+		if ( isset( $labels[$id] ) ) {
+			return $labels[$id];
+		}
+
+		return '';
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * @param string $id
+	 * @param string $languageCode
+	 *
+	 * @return string
+	 */
+	public function findPreferredPropertyLabelByLanguageCode( $id, $languageCode = '' ) {
+
+		if ( $id === '' || $id === false ) {
+			return '';
+		}
+
+		// Lookup is cached in PropertySpecificationLookup
+		$propertySpecificationLookup = ApplicationFactory::getInstance()->getPropertySpecificationLookup();
+
+		$preferredPropertyLabel = $propertySpecificationLookup->getPreferredPropertyLabelBy(
+			new DIProperty( str_replace( ' ', '_', $id ) ),
+			$languageCode
+		);
+
+		return $preferredPropertyLabel;
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * @param string $text
+	 * @param string $languageCode
+	 *
+	 * @return DIProperty[]|[]
+	 */
+	public function findPropertyListFromLabelByLanguageCode( $text, $languageCode = '' ) {
+
+		if ( $text === '' ) {
+			return [];
+		}
+
+		if ( $languageCode === '' ) {
+			$languageCode = Localizer::getInstance()->getContentLanguage()->getCode();
+		}
+
+		$dataValue = DataValueFactory::getInstance()->newDataValueByProperty(
+			new DIProperty( '_PPLB' )
+		);
+
+		$dataValue->setUserValue(
+			$dataValue->getTextWithLanguageTag( $text, $languageCode )
+		);
+
+		$queryFactory = ApplicationFactory::getInstance()->getQueryFactory();
+		$descriptionFactory = $queryFactory->newDescriptionFactory();
+
+		$description = $descriptionFactory->newConjunction( [
+			$descriptionFactory->newNamespaceDescription( SMW_NS_PROPERTY ),
+			$descriptionFactory->newFromDataValue( $dataValue )
+		] );
+
+		$propertyList = [];
+
+		$query = $queryFactory->newQuery( $description );
+		$query->setOption( $query::PROC_CONTEXT, 'PropertyLabelFinder' );
+		$query->setLimit( 100 );
+
+		$queryResult = $this->store->getQueryResult(
+			$query
+		);
+
+		if ( !$queryResult instanceof \SMWQueryResult ) {
+			return $propertyList;
+		}
+
+		foreach ( $queryResult->getResults() as $result ) {
+			$propertyList[] = DIProperty::newFromUserLabel( $result->getDBKey() );
+		}
+
+		return $propertyList;
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param string $label
+	 *
+	 * @return string|false
+	 */
+	public function searchPropertyIdByLabel( $label ) {
+		return array_search( $label, $this->languageDependentPropertyLabels );
+	}
+
+	/**
+	 * @since 2.2
+	 *
+	 * @param string $id
+	 * @param string $label
+	 */
+	public function registerPropertyLabel( $id, $label, $asCanonical = true ) {
+
+		// Prevent an extension from overriding an already registered
+		// canonical label that may point to a different ID
+		if ( isset( $this->canonicalPropertyLabels[$label] ) && $this->canonicalPropertyLabels[$label] !== $id ) {
+			return;
+		}
+
+		$this->languageDependentPropertyLabels[$id] = $label;
+
+		// This is done so extensions can register the property id/label as being
+		// canonical in their representation while the alias may hold translated
+		// language depedendant matches
+		if ( $asCanonical ) {
+			$this->canonicalPropertyLabels[$label] = $id;
+		}
+	}
+
+}