/**
* 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
}
// Create array of relevant columns
$relevant_columns = array('contest_id', 'title', 'description', 'start_time', 'finish_time', 'public', 'alias', 'director_id', 'window_length', 'recommended');
try {
// Get all contests using only relevan columns
$contests = ContestsDAO::getAllMultipleOrder(null, null, array(array('column' => 'recommended', 'type' => 'DESC'), array('column' => 'finish_time', 'type' => 'DESC')), $relevant_columns);
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
// DAO requires contest_id as relevant column but we don't want to expose it
array_shift($relevant_columns);
/**
* Ok, lets go 1 by 1, and if its public, show it,
* if its not, check if the user has access to it.
* */
$addedContests = array();
foreach ($contests as $c) {
// At most we want 1000 contests @TODO paginar correctamente
if (sizeof($addedContests) == 1000) {
break;
}
if ($c->getPublic()) {
$c->toUnixTime();
$contestInfo = $c->asFilteredArray($relevant_columns);
$contestInfo['duration'] = is_null($c->getWindowLength()) ? $c->getFinishTime() - $c->getStartTime() : $c->getWindowLength() * 60;
$addedContests[] = $contestInfo;
continue;
}
/*
* Ok, its not public, lets se if we have a
* valid user
* */
if ($r['current_user_id'] === null) {
continue;
}
/**
* Ok, i have a user. Can he see this contest ?
* */
try {
$contestUser = ContestsUsersDAO::getByPK($r['current_user_id'], $c->getContestId());
} catch (Exception $e) {
throw new InvalidDatabaseOperationException($e);
}
// Admins can see all contests
if ($contestUser === null && !Authorization::IsContestAdmin($r['current_user_id'], $c)) {
/**
* Nope, he cant .
* */
continue;
}
/**
* He can see it !
*
* */
$c->toUnixTime();
$contestInfo = $c->asFilteredArray($relevant_columns);
$contestInfo['duration'] = is_null($c->getWindowLength()) ? $c->getFinishTime() - $c->getStartTime() : $c->getWindowLength() * 60;
$addedContests[] = $contestInfo;
}
return array('number_of_results' => sizeof($addedContests), 'results' => $addedContests);
}
