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<?php |
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namespace Wikibase\DataModel\Entity; |
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use InvalidArgumentException; |
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use OutOfBoundsException; |
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use Wikibase\DataModel\SiteLink; |
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use Wikibase\DataModel\SiteLinkList; |
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use Wikibase\DataModel\Statement\StatementList; |
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use Wikibase\DataModel\Statement\StatementListHolder; |
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use Wikibase\DataModel\Term\Fingerprint; |
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use Wikibase\DataModel\Term\FingerprintHolder; |
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/** |
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* Represents a single Wikibase item. |
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* See https://www.mediawiki.org/wiki/Wikibase/DataModel#Items |
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* |
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* @since 0.1 |
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* |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class Item implements EntityDocument, FingerprintHolder, StatementListHolder { |
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const ENTITY_TYPE = 'item'; |
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/** |
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* @var ItemId|null |
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*/ |
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private $id; |
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/** |
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* @var Fingerprint |
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*/ |
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private $fingerprint; |
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/** |
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* @var SiteLinkList |
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*/ |
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private $siteLinks; |
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/** |
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* @var StatementList |
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*/ |
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private $statements; |
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/** |
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* @since 1.0 |
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* |
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* @param ItemId|null $id |
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* @param Fingerprint|null $fingerprint |
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* @param SiteLinkList|null $siteLinks |
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* @param StatementList|null $statements |
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*/ |
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public function __construct( |
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ItemId $id = null, |
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Fingerprint $fingerprint = null, |
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SiteLinkList $siteLinks = null, |
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StatementList $statements = null |
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) { |
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$this->id = $id; |
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$this->fingerprint = $fingerprint ?: new Fingerprint(); |
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$this->siteLinks = $siteLinks ?: new SiteLinkList(); |
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$this->statements = $statements ?: new StatementList(); |
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} |
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/** |
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* Returns the id of the entity or null if it does not have one. |
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* |
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* @since 0.1 return type changed in 0.3 |
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* |
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* @return ItemId|null |
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*/ |
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public function getId() { |
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return $this->id; |
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} |
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/** |
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* Can be integer since 0.1. |
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* Can be ItemId since 0.5. |
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* Can be null since 1.0. |
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* |
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* @param ItemId|int|null $id |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setId( $id ) { |
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if ( $id === null || $id instanceof ItemId ) { |
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$this->id = $id; |
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} elseif ( is_int( $id ) ) { |
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$this->id = ItemId::newFromNumber( $id ); |
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} else { |
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throw new InvalidArgumentException( '$id must be an instance of ItemId, an integer,' |
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. ' or null' ); |
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} |
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} |
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/** |
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* @since 0.7.3 |
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* |
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* @return Fingerprint |
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*/ |
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public function getFingerprint() { |
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return $this->fingerprint; |
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} |
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/** |
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* @since 0.7.3 |
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* |
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* @param Fingerprint $fingerprint |
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*/ |
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public function setFingerprint( Fingerprint $fingerprint ) { |
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$this->fingerprint = $fingerprint; |
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} |
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/** |
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* @param string $languageCode |
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* @param string $value |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setLabel( $languageCode, $value ) { |
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$this->fingerprint->setLabel( $languageCode, $value ); |
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} |
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/** |
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* @param string $languageCode |
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* @param string $value |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setDescription( $languageCode, $value ) { |
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$this->fingerprint->setDescription( $languageCode, $value ); |
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} |
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/** |
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* @param string $languageCode |
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* @param string[] $aliases |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function setAliases( $languageCode, array $aliases ) { |
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$this->fingerprint->setAliasGroup( $languageCode, $aliases ); |
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} |
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/** |
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* @since 0.8 |
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* |
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* @return SiteLinkList |
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*/ |
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public function getSiteLinkList() { |
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return $this->siteLinks; |
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} |
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/** |
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* @since 0.8 |
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* |
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* @param SiteLinkList $siteLinks |
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*/ |
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public function setSiteLinkList( SiteLinkList $siteLinks ) { |
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$this->siteLinks = $siteLinks; |
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} |
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/** |
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* Adds a site link to the list of site links. |
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* If there already is a site link with the site id of the provided site link, |
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* then that one will be overridden by the provided one. |
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* |
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* @deprecated since 0.8, use getSiteLinkList()->addSiteLink() instead. |
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* @since 0.6 |
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* |
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* @param SiteLink $siteLink |
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*/ |
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public function addSiteLink( SiteLink $siteLink ) { |
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if ( $this->siteLinks->hasLinkWithSiteId( $siteLink->getSiteId() ) ) { |
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$this->siteLinks->removeLinkWithSiteId( $siteLink->getSiteId() ); |
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} |
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$this->siteLinks->addSiteLink( $siteLink ); |
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} |
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/** |
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* Removes the sitelink with specified site ID if the Item has such a sitelink. |
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* |
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* @deprecated since 0.8, use getSiteLinkList()->removeLinkWithSiteId() instead. |
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* @since 0.1 |
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* |
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* @param string $siteId the target site's id |
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*/ |
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public function removeSiteLink( $siteId ) { |
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$this->siteLinks->removeLinkWithSiteId( $siteId ); |
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} |
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/** |
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* @deprecated since 0.8, use getSiteLinkList() instead, |
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* @since 0.6 |
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* |
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* @return SiteLink[] |
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*/ |
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public function getSiteLinks() { |
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return array_values( iterator_to_array( $this->siteLinks ) ); |
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} |
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/** |
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* @deprecated since 0.8, use getSiteLinkList()->getBySiteId() instead. |
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* @since 0.6 |
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* |
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* @param string $siteId |
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* |
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* @return SiteLink |
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* @throws OutOfBoundsException |
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*/ |
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public function getSiteLink( $siteId ) { |
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return $this->siteLinks->getBySiteId( $siteId ); |
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} |
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/** |
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* @deprecated since 0.8, use getSiteLinkList()->hasLinkWithSiteId() instead. |
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* @since 0.4 |
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* |
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* @param string $siteId |
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* |
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* @return bool |
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*/ |
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public function hasLinkToSite( $siteId ) { |
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return $this->siteLinks->hasLinkWithSiteId( $siteId ); |
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} |
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/** |
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* @deprecated since 0.8, use getSiteLinkList()->isEmpty() instead. |
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* @since 0.5 |
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* |
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* @return bool |
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*/ |
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public function hasSiteLinks() { |
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return !$this->siteLinks->isEmpty(); |
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} |
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/** |
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* @deprecated since 2.5, use new Item() instead. |
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* |
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* @return self |
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*/ |
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public static function newEmpty() { |
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return new self(); |
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} |
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/** |
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* @see Entity::getType |
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* |
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* @since 0.1 |
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* |
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* @return string Returns the entity type "item". |
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*/ |
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public function getType() { |
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return self::ENTITY_TYPE; |
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} |
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/** |
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* Returns if the Item has no content. |
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* Having an id set does not count as having content. |
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* |
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* @since 0.1 |
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* |
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* @return bool |
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*/ |
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public function isEmpty() { |
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return $this->fingerprint->isEmpty() |
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&& $this->statements->isEmpty() |
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&& $this->siteLinks->isEmpty(); |
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} |
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/** |
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* Removes all content from the Item. |
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* The id is not part of the content. |
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* |
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* @since 0.1 |
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*/ |
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public function clear() { |
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$this->fingerprint = new Fingerprint(); |
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$this->siteLinks = new SiteLinkList(); |
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$this->statements = new StatementList(); |
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} |
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/** |
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* @since 1.0 |
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* |
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* @return StatementList |
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*/ |
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public function getStatements() { |
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return $this->statements; |
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} |
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/** |
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* @since 1.0 |
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* |
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* @param StatementList $statements |
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*/ |
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public function setStatements( StatementList $statements ) { |
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$this->statements = $statements; |
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} |
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/** |
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* @see EntityDocument::equals |
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* |
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* @since 0.1 |
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* |
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* @param mixed $target |
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* |
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* @return bool |
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*/ |
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public function equals( $target ) { |
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if ( $this === $target ) { |
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return true; |
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} |
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return $target instanceof self |
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&& $this->fingerprint->equals( $target->fingerprint ) |
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&& $this->siteLinks->equals( $target->siteLinks ) |
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&& $this->statements->equals( $target->statements ); |
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} |
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/** |
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* @see EntityDocument::copy |
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* |
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* @since 0.1 |
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* |
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* @return self |
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*/ |
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public function copy() { |
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return unserialize( serialize( $this ) ); |
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} |
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} |
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