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<?php |
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namespace Wikibase\DataModel; |
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use InvalidArgumentException; |
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use Wikibase\DataModel\Entity\ItemId; |
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use Wikibase\DataModel\Entity\ItemIdSet; |
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/** |
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* Immutable value object representing a link to a page on another site. |
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* |
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* A set of badges, represented as ItemId objects, acts as flags |
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* describing attributes of the linked to page. |
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* |
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* @since 0.4 |
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* |
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* @license GPL-2.0-or-later |
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* @author Jeroen De Dauw < [email protected] > |
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* @author Michał Łazowik |
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* @author Thiemo Kreuz |
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*/ |
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class SiteLink { |
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/** |
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* @var string |
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*/ |
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private $siteId; |
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/** |
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* @var string |
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*/ |
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private $pageName; |
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/** |
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* @var ItemIdSet |
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*/ |
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private $badges; |
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/** |
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* @param string $siteId |
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* @param string $pageName |
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* @param ItemIdSet|ItemId[]|null $badges |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct( $siteId, $pageName, $badges = null ) { |
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if ( !is_string( $siteId ) || $siteId === '' ) { |
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throw new InvalidArgumentException( '$siteId must be a non-empty string' ); |
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} |
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if ( !is_string( $pageName ) || $pageName === '' ) { |
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throw new InvalidArgumentException( '$pageName must be a non-empty string' ); |
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} |
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$this->siteId = $siteId; |
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$this->pageName = $pageName; |
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$this->setBadges( $badges ); |
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} |
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/** |
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* @param ItemIdSet|ItemId[]|null $badges |
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* |
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* @throws InvalidArgumentException |
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*/ |
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private function setBadges( $badges ) { |
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if ( $badges === null ) { |
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$badges = new ItemIdSet(); |
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} elseif ( is_array( $badges ) ) { |
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$badges = new ItemIdSet( $badges ); |
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} elseif ( !( $badges instanceof ItemIdSet ) ) { |
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throw new InvalidArgumentException( |
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'$badges must be an instance of ItemIdSet, an array of instances of ItemId, or null' |
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); |
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} |
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$this->badges = $badges; |
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} |
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/** |
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* @since 0.4 |
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* |
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* @return string |
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*/ |
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public function getSiteId() { |
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return $this->siteId; |
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} |
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/** |
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* @since 0.4 |
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* |
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* @return string |
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*/ |
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public function getPageName() { |
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return $this->pageName; |
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} |
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/** |
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* Badges are not order dependent. |
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* |
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* @since 0.5 |
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* |
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* @return ItemId[] |
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*/ |
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public function getBadges() { |
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return array_values( iterator_to_array( $this->badges ) ); |
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} |
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/** |
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* |
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* @since 0.7.4 |
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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->siteId === $target->siteId |
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&& $this->pageName === $target->pageName |
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&& $this->badges->equals( $target->badges ); |
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} |
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} |
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