MutableRevisionSlots.php

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<?php
namespace MediaWiki\Storage;
 
use Content;
 
class MutableRevisionSlots extends RevisionSlots {
 
    public static function newFromParentRevisionSlots( array $slots ) {
        $inherited = [];
        foreach ( $slots as $slot ) {
            $role = $slot->getRole();
            $inherited[$role] = SlotRecord::newInherited( $slot );
        }
 
        return new MutableRevisionSlots( $inherited );
    }
 
    public function __construct( array $slots = [] ) {
        parent::__construct( $slots );
    }
 
    public function setSlot( SlotRecord $slot ) {
        if ( !is_array( $this->slots ) ) {
            $this->getSlots(); // initialize $this->slots
        }
 
        $role = $slot->getRole();
        $this->slots[$role] = $slot;
    }
 
    public function setContent( $role, Content $content ) {
        $slot = SlotRecord::newUnsaved( $role, $content );
        $this->setSlot( $slot );
    }
 
    public function removeSlot( $role ) {
        if ( !is_array( $this->slots ) ) {
            $this->getSlots();  // initialize $this->slots
        }
 
        unset( $this->slots[$role] );
    }
 
    public function getTouchedSlots() {
        return array_filter(
            $this->getSlots(),
            function ( SlotRecord $slot ) {
                return !$slot->isInherited();
            }
        );
    }
 
    public function getInheritedSlots() {
        return array_filter(
            $this->getSlots(),
            function ( SlotRecord $slot ) {
                return $slot->isInherited();
            }
        );
    }
 
}