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<?php
declare(strict_types=1);
namespace BEAR\QueryRepository;
use BEAR\Resource\ResourceObject;
use function assert;
use function sprintf;
final class CacheDependency implements CacheDependencyInterface
{
/** @var UriTagInterface */
private $uriTag;
public function __construct(UriTagInterface $uriTag)
$this->uriTag = $uriTag;
}
public function depends(ResourceObject $from, ResourceObject $to): void
assert(! isset($from->headers[Header::SURROGATE_KEY]));
$cacheDependencyTags = ($this->uriTag)($to->uri);
if (isset($to->headers[Header::SURROGATE_KEY])) {
$cacheDependencyTags .= sprintf(' %s', $to->headers[Header::SURROGATE_KEY]);
unset($to->headers[Header::SURROGATE_KEY]);
$from->headers[Header::SURROGATE_KEY] = $cacheDependencyTags;
bearsunday /
BEAR.QueryRepository
