/**
* Returns details of a Contest. This is shared between apiDetails and
* apiAdminDetails.
*
* @param Request $r
* @param $result
*/
private static function getCachedDetails(Request $r, &$result)
{
Cache::getFromCacheOrSet(Cache::CONTEST_INFO, $r["contest_alias"], $r, function (Request $r) {
// Create array of relevant columns
$relevant_columns = array("title", "description", "start_time", "finish_time", "window_length", "alias", "scoreboard", "points_decay_factor", "partial_score", "submissions_gap", "feedback", "penalty", "time_start", "penalty_type", "penalty_calc_policy", "public", "show_scoreboard_after", "contestant_must_register", "languages");
// Initialize response to be the contest information
$result = $r["contest"]->asFilteredArray($relevant_columns);
$result['start_time'] = strtotime($result['start_time']);
$result['finish_time'] = strtotime($result['finish_time']);
try {
$result['director'] = UsersDAO::getByPK($r['contest']->director_id)->username;
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Get problems of the contest
$key_problemsInContest = new ContestProblems(array("contest_id" => $r["contest"]->getContestId()));
try {
$problemsInContest = ContestProblemsDAO::search($key_problemsInContest, "order");
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add info of each problem to the contest
$problemsResponseArray = array();
// Set of columns that we want to show through this API. Doesn't include the SOURCE
$relevant_columns = array("title", "alias", "validator", "time_limit", "overall_wall_time_limit", "extra_wall_time", "memory_limit", "visits", "submissions", "accepted", "dificulty", "order", "languages");
$letter = 0;
foreach ($problemsInContest as $problemkey) {
try {
// Get the data of the problem
$temp_problem = ProblemsDAO::getByPK($problemkey->getProblemId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add the 'points' value that is stored in the ContestProblem relationship
$temp_array = $temp_problem->asFilteredArray($relevant_columns);
$temp_array["points"] = $problemkey->getPoints();
$temp_array['letter'] = ContestController::columnName($letter++);
if (!empty($result['languages'])) {
$temp_array['languages'] = join(',', array_intersect(explode(',', $result['languages']), explode(',', $temp_array['languages'])));
}
// Save our array into the response
array_push($problemsResponseArray, $temp_array);
}
// Add problems to response
$result['problems'] = $problemsResponseArray;
return $result;
}, $result, APC_USER_CACHE_CONTEST_INFO_TIMEOUT);
}
/**
* Returns details of a Contest
*
* @param Request $r
* @return array
* @throws InvalidDatabaseOperationException
*/
public static function apiDetails(Request $r)
{
self::validateDetails($r);
Cache::getFromCacheOrSet(Cache::CONTEST_INFO, $r["contest_alias"], $r, function (Request $r) {
// Create array of relevant columns
$relevant_columns = array("title", "description", "start_time", "finish_time", "window_length", "alias", "scoreboard", "points_decay_factor", "partial_score", "submissions_gap", "feedback", "penalty", "time_start", "penalty_type", "penalty_calc_policy", "public", "show_scoreboard_after", "contestant_must_register", "languages");
// Initialize response to be the contest information
$result = $r["contest"]->asFilteredArray($relevant_columns);
$result['start_time'] = strtotime($result['start_time']);
$result['finish_time'] = strtotime($result['finish_time']);
try {
$result['director'] = UsersDAO::getByPK($r['contest']->director_id)->username;
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Get problems of the contest
$key_problemsInContest = new ContestProblems(array("contest_id" => $r["contest"]->getContestId()));
try {
$problemsInContest = ContestProblemsDAO::search($key_problemsInContest, "order");
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add info of each problem to the contest
$problemsResponseArray = array();
// Set of columns that we want to show through this API. Doesn't include the SOURCE
$relevant_columns = array("title", "alias", "validator", "time_limit", "overall_wall_time_limit", "extra_wall_time", "memory_limit", "visits", "submissions", "accepted", "dificulty", "order", "languages");
$letter = 0;
foreach ($problemsInContest as $problemkey) {
try {
// Get the data of the problem
$temp_problem = ProblemsDAO::getByPK($problemkey->getProblemId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add the 'points' value that is stored in the ContestProblem relationship
$temp_array = $temp_problem->asFilteredArray($relevant_columns);
$temp_array["points"] = $problemkey->getPoints();
$temp_array['letter'] = ContestController::columnName($letter++);
if (!empty($result['languages'])) {
$temp_array['languages'] = join(',', array_intersect(explode(',', $result['languages']), explode(',', $temp_array['languages'])));
}
// Save our array into the response
array_push($problemsResponseArray, $temp_array);
}
// Add problems to response
$result['problems'] = $problemsResponseArray;
return $result;
}, $result, APC_USER_CACHE_CONTEST_INFO_TIMEOUT);
if (is_null($r['token'])) {
// Adding timer info separately as it depends on the current user and we don't
// want this to get generally cached for everybody
// Save the time of the first access
try {
$contest_user = ContestsUsersDAO::CheckAndSaveFirstTimeAccess($r["current_user_id"], $r["contest"]->getContestId());
} catch (Exception $e) {
// Operation failed in the data layer
throw new InvalidDatabaseOperationException($e);
}
// Add time left to response
if ($r["contest"]->getWindowLength() === null) {
$result['submission_deadline'] = strtotime($r["contest"]->getFinishTime());
} else {
$result['submission_deadline'] = min(strtotime($r["contest"]->getFinishTime()), strtotime($contest_user->getAccessTime()) + $r["contest"]->getWindowLength() * 60);
}
$result['admin'] = Authorization::IsContestAdmin($r["current_user_id"], $r["contest"]);
}
$result["status"] = "ok";
return $result;
}
