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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\MediaInfo\Services; |
| 4 | |
| 5 | use InvalidArgumentException; |
| 6 | use MediaWiki\Title\Title; |
| 7 | use UnexpectedValueException; |
| 8 | use Wikibase\DataModel\Services\EntityId\EntityIdComposer; |
| 9 | use Wikibase\Lib\Store\EntityIdLookup; |
| 10 | use Wikibase\MediaInfo\DataModel\MediaInfo; |
| 11 | use Wikimedia\Assert\Assert; |
| 12 | |
| 13 | /** |
| 14 | * Lookup service for getting the MediaInfoId that corresponds to a Title. |
| 15 | * |
| 16 | * @license GPL-2.0-or-later |
| 17 | * @author Daniel Kinzler |
| 18 | */ |
| 19 | class MediaInfoIdLookup implements EntityIdLookup { |
| 20 | |
| 21 | /** |
| 22 | * @var EntityIdComposer |
| 23 | */ |
| 24 | private $entityIdComposer; |
| 25 | |
| 26 | /** |
| 27 | * @var int |
| 28 | */ |
| 29 | private $mediaInfoNamespace; |
| 30 | |
| 31 | /** |
| 32 | * @param EntityIdComposer $entityIdComposer |
| 33 | * @param int $mediaInfoNamespace numeric namespace ID of the namespace in which MediaInfo |
| 34 | * entities reside. |
| 35 | */ |
| 36 | public function __construct( EntityIdComposer $entityIdComposer, $mediaInfoNamespace ) { |
| 37 | Assert::parameterType( 'integer', $mediaInfoNamespace, '$mediaInfoNamespace' ); |
| 38 | Assert::parameter( $mediaInfoNamespace >= 0, '$mediaInfoNamespace', 'Must not be negative' ); |
| 39 | |
| 40 | $this->entityIdComposer = $entityIdComposer; |
| 41 | $this->mediaInfoNamespace = $mediaInfoNamespace; |
| 42 | } |
| 43 | |
| 44 | public function getEntityIds( array $titles ) { |
| 45 | $results = []; |
| 46 | foreach ( $titles as $title ) { |
| 47 | $results[$title->getArticleID()] = $this->getEntityIdForTitle( $title ); |
| 48 | } |
| 49 | return array_filter( $results ); |
| 50 | } |
| 51 | |
| 52 | public function getEntityIdForTitle( Title $title ) { |
| 53 | if ( !$title->inNamespace( $this->mediaInfoNamespace ) ) { |
| 54 | return null; |
| 55 | } |
| 56 | |
| 57 | // The ID for a MediaInfo item is the same as the ID of its associated File page, with |
| 58 | // an 'M' prepended - this is encapsulated by EntityIdComposer::composeEntityId() |
| 59 | try { |
| 60 | return $this->entityIdComposer->composeEntityId( |
| 61 | MediaInfo::ENTITY_TYPE, |
| 62 | $title->getArticleID() |
| 63 | ); |
| 64 | } catch ( InvalidArgumentException | UnexpectedValueException $e ) { |
| 65 | return null; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | } |