ReadOnlyConstraint.php

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<?php
namespace MediaWiki\EditPage\Constraint;
 
use MediaWiki\Exception\ReadOnlyError;
use MediaWiki\PageEdit\PageEditStatus;
use Wikimedia\Rdbms\ReadOnlyMode;
 
class ReadOnlyConstraint extends EditConstraint {
 
    public function __construct(
        private readonly ReadOnlyMode $readOnlyMode,
    ) {
    }
 
    public function checkConstraint(): PageEditStatus {
        if ( $this->readOnlyMode->isReadOnly() ) {
            return PageEditStatus::newFatal( 'readonlytext' )
                ->setValue( self::AS_READ_ONLY_PAGE )
                ->setErrorFunction( static fn () => throw new ReadOnlyError() );
        }
        return PageEditStatus::newGood();
    }
 
}