SiteList.php

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<?php
 
class SiteList extends GenericArrayObject {
    protected $byInternalId = [];
 
    protected $byGlobalId = [];
 
    protected $byNavigationId = [];
 
    public function getObjectType() {
        return Site::class;
    }
 
    protected function preSetElement( $index, $site ) {
        if ( $this->hasSite( $site->getGlobalId() ) ) {
            $this->removeSite( $site->getGlobalId() );
        }
 
        $this->byGlobalId[$site->getGlobalId()] = $index;
        $this->byInternalId[$site->getInternalId()] = $index;
 
        $ids = $site->getNavigationIds();
        foreach ( $ids as $navId ) {
            $this->byNavigationId[$navId] = $index;
        }
 
        return true;
    }
 
    public function offsetUnset( $index ): void {
        if ( $this->offsetExists( $index ) ) {
            $site = $this->offsetGet( $index );
 
            unset( $this->byGlobalId[$site->getGlobalId()] );
            unset( $this->byInternalId[$site->getInternalId()] );
 
            $ids = $site->getNavigationIds();
            foreach ( $ids as $navId ) {
                unset( $this->byNavigationId[$navId] );
            }
        }
 
        parent::offsetUnset( $index );
    }
 
    public function getGlobalIdentifiers() {
        return array_keys( $this->byGlobalId );
    }
 
    public function hasSite( $globalSiteId ) {
        return array_key_exists( $globalSiteId, $this->byGlobalId );
    }
 
    public function getSite( $globalSiteId ) {
        return $this->offsetGet( $this->byGlobalId[$globalSiteId] );
    }
 
    public function removeSite( $globalSiteId ) {
        $this->offsetUnset( $this->byGlobalId[$globalSiteId] );
    }
 
    public function isEmpty() {
        return $this->byGlobalId === [];
    }
 
    public function hasInternalId( $id ) {
        return array_key_exists( $id, $this->byInternalId );
    }
 
    public function getSiteByInternalId( $id ) {
        return $this->offsetGet( $this->byInternalId[$id] );
    }
 
    public function removeSiteByInternalId( $id ) {
        $this->offsetUnset( $this->byInternalId[$id] );
    }
 
    public function hasNavigationId( $id ) {
        return array_key_exists( $id, $this->byNavigationId );
    }
 
    public function getSiteByNavigationId( $id ) {
        return $this->offsetGet( $this->byNavigationId[$id] );
    }
 
    public function removeSiteByNavigationId( $id ) {
        $this->offsetUnset( $this->byNavigationId[$id] );
    }
 
    public function setSite( Site $site ) {
        $this[] = $site;
    }
 
    public function getGroup( $groupName ) {
        $group = new self();
 
        foreach ( $this as $site ) {
            if ( $site->getGroup() === $groupName ) {
                $group[] = $site;
            }
        }
 
        return $group;
    }
 
    private const SERIAL_VERSION_ID = '2014-03-17';
 
    public static function getSerialVersionId() {
        return self::SERIAL_VERSION_ID . '+Site:' . Site::SERIAL_VERSION_ID;
    }
 
    protected function getSerializationData() {
        // NOTE: When changing the structure, either implement unserialize() to handle the
        //      old structure too, or update SERIAL_VERSION_ID to kill any caches.
        return array_merge(
            parent::getSerializationData(),
            [
                'internalIds' => $this->byInternalId,
                'globalIds' => $this->byGlobalId,
                'navigationIds' => $this->byNavigationId
            ]
        );
    }
 
    public function __unserialize( $serializationData ): void {
        parent::__unserialize( $serializationData );
 
        $this->byInternalId = $serializationData['internalIds'];
        $this->byGlobalId = $serializationData['globalIds'];
        $this->byNavigationId = $serializationData['navigationIds'];
    }
}