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<?php
namespace WikibaseQuality\ConstraintReport\ConstraintCheck\Helper;
use Wikibase\DataModel\Entity\EntityDocument;
use Wikibase\DataModel\Entity\EntityId;
use Wikibase\DataModel\Services\Lookup\EntityLookup;
use Wikibase\DataModel\Services\Lookup\EntityLookupException;
/**
* An {@link EntityLookup} which ignores any exceptions
* which occur while retrieving an entity
* and instead pretends the entity does not exist.
*
* @license GPL-2.0-or-later
*/
class ExceptionIgnoringEntityLookup implements EntityLookup {
* @var EntityLookup
private $lookup;
public function __construct( EntityLookup $lookup ) {
$this->lookup = $lookup;
}
* Attempt to retrieve the entity,
* returning `null` if any errors occur.
* @param EntityId $entityId
* @return EntityDocument|null
public function getEntity( EntityId $entityId ) {
try {
return $this->lookup->getEntity( $entityId );
} catch ( EntityLookupException $exception ) {
return null;
* Returns whether the given entity can potentially be looked up using {@link getEntity()}.
* Note that this does not guarantee {@link getEntity()} will return an {@link EntityDocument} –
* it may still return `null` if an error occurs retrieving the entity.
* @return bool
public function hasEntity( EntityId $entityId ) {
return $this->lookup->hasEntity( $entityId );
wikimedia /
mediawiki-extensions-WikibaseQualityConstraints
