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<?php
namespace JsonApi\Routes;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Message\ResponseInterface as Response;
use JsonApi\Errors\RecordNotFoundException;
use JsonApi\JsonApiController;
/**
* List all the semesters.
*/
class SemestersIndex extends JsonApiController
{
protected $allowedPagingParameters = ['offset', 'limit'];
protected $allowedFilteringParameters = ['current', 'timestamp'];
public function __invoke(Request $request, Response $response, $args)
{
list($offset, $limit) = $this->getOffsetAndLimit();
$filtering = $this->getQueryParameters()->getFilteringParameters();
if (empty($filtering)) {
$semesters = \Semester::getAll();
} else {
if (array_key_exists('current', $filtering)) {
$semester = \Semester::findCurrent();
}
if (isset($filtering['timestamp'])) {
$semester = \Semester::findByTimestamp($filtering['timestamp']);
}
if (!$semester) {
throw new RecordNotFoundException('Could not find semester.');
} else {
$semesters = [$semester];
}
}
return $this->getPaginatedContentResponse(
array_slice($semesters, $offset, $limit),
count($semesters)
);
}
}
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