Ignore.php

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<?php

declare(strict_types=1);

namespace ILIAS\components\Database\Integrity;

class Ignore
{
    private const IS_NOT_NULL = 'IS NOT NULL';
    private const NOT_EQUALS = '!=';

    private array $values_to_ignore;

    public function __construct(?string ...$values_to_ignore)
    {
        $this->values_to_ignore = array_map(static function (?string $value_to_ignore): string {
            return null === $value_to_ignore ? self::IS_NOT_NULL : self::NOT_EQUALS . ' ' . $value_to_ignore;
        }, $values_to_ignore);
    }

    public function values(): array
    {
        return $this->values_to_ignore;
    }
}