/**
* Returns a list of contests
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
*/
public static function apiList(Request $r)
{
// Check who is visiting, but a not logged user can still view
// the list of contests
try {
self::authenticateRequest($r);
} catch (UnauthorizedException $e) {
// Do nothing.
}
try {
$contests = array();
if ($r['current_user_id'] === null) {
// Get all public contests
Cache::getFromCacheOrSet(Cache::CONTESTS_LIST_PUBLIC, '', $r, function (Request $r) {
return ContestsDAO::getAllPublicContests();
}, $contests);
} elseif (Authorization::IsSystemAdmin($r['current_user_id'])) {
// Get all contests
Cache::getFromCacheOrSet(Cache::CONTESTS_LIST_SYSTEM_ADMIN, '', $r, function (Request $r) {
return ContestsDAO::getAllContests();
}, $contests);
} else {
// Get all public+private contests
$contests = ContestsDAO::getAllContestsForUser($r['current_user_id']);
}
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
// Filter returned values by these columns
$relevantColumns = array('contest_id', 'title', 'description', 'start_time', 'finish_time', 'public', 'alias', 'director_id', 'window_length', 'recommended');
$addedContests = array();
foreach ($contests as $c) {
$contestInfo = $c->asFilteredArray($relevantColumns);
$contestInfo['duration'] = is_null($c->getWindowLength()) ? $c->getFinishTime() - $c->getStartTime() : $c->getWindowLength() * 60;
$addedContests[] = $contestInfo;
}
return array('number_of_results' => sizeof($addedContests), 'results' => $addedContests);
}
