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<?php
namespace SMW;
use SMW\Localizer\Localizer;
use SMW\Query\QueryResult;
use SMW\Services\ServicesFactory as ApplicationFactory;
/**
* @license GPL-2.0-or-later
* @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|bool
*/
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->getPreferredPropertyLabelByLanguageCode(
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 QueryResult ) {
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;
}
}
}