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<?php
namespace JsonApi\Routes\Wiki;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\JsonApiController;
/*
* Get paginated list of all descendants of a page
*/
class DescendantsIndex extends JsonApiController
{
use HelperTrait;
protected $allowedPagingParameters = ['offset', 'limit'];
protected $allowedIncludePaths = ['author', 'children', 'descendants', 'parent', 'range'];
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameters)
*/
public function __invoke(Request $request, Response $response, $args)
{
$wikiPage = self::findWikiPage($args['id']);
if (!Authority::canShowWiki($this->getUser($request), $wikiPage)) {
throw new AuthorizationFailedException();
}
$descendants = $wikiPage->getDescendants();
$total = count($descendants);
list($offset, $limit) = $this->getOffsetAndLimit();
return $this->getPaginatedContentResponse(
array_slice($descendants, $offset, $limit),
$total
);
}
}
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