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<?php
namespace JsonApi\Routes\Courseware;
use Courseware\Unit;
use JsonApi\Errors\AuthorizationFailedException;
use JsonApi\Errors\BadRequestException;
use JsonApi\JsonApiController;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
/**
* Update multiple Unit positions.
*
* @author Ron Lucke <lucke@elan-ev.de>
* @license GPL2 or any later version
*
* @since Stud.IP 5.5
*/
class UnitsSort extends JsonApiController
{
public function __invoke(Request $request, Response $response, $args)
{
$range = $this->getRange($args);
$user = $this->getUser($request);
if (!Authority::canSortUnit($user, $range)) {
throw new AuthorizationFailedException();
}
$data = $request->getParsedBody()['data'];
$positions = $data['positions'];
$unitCount = Unit::getNewPosition($range->id);
if (count($positions) !== $unitCount) {
throw new BadRequestException('Fehler beim Sortieren der Lernmaterialien.');
}
Unit::updatePositions($range, $positions);
$response = $response->withHeader('Content-Type', 'application/json');
return $response;
}
private function getRange($args): ?\Range
{
try {
return \RangeFactory::createRange(
$this->getRangeType($args['type']),
$args['id']
);
} catch (\Exception $e) {
return null;
}
}
private function getRangeType($type): ?string
{
$type_map = [
'courses' => 'course',
'users' => 'user',
];
return $type_map[$type] ?? null;
}
}
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