function RateProblem(&$arg)
{
global $login_uid;
global $logged;
if (!$logged) {
Fail("Must login first");
}
$pid = safefetch($arg, 'pid', 'Fail');
$score = intval(safefetch($arg, 'score', 'Fail'));
if ($score < 0 || $score > 5) {
Fail("Score out of range");
}
$problem = new ProblemTbl($pid);
if (!$problem->Get()) {
Fail("Problem not found");
}
$rating = new RatingTbl();
$prikey = array('uid' => $login_uid, 'pid' => $pid);
if ($rating->GetByFields($prikey)) {
$cur_score = intval($rating->detail['rate']);
$problem->update['rate_tot'] = intval($problem->detail['rate_tot']) - $cur_score + $score;
if (!$problem->Update()) {
Fail("Fail to update database");
}
$rating->update['rate'] = $score;
if (!$rating->UpdateByFields($prikey)) {
Fail("Fail to update database");
}
} else {
$problem->update['rate_tot'] = intval($problem->detail['rate_tot']) + $score;
$problem->update['rate_count'] = intval($problem->detail['rate_count']) + 1;
if (!$problem->Update()) {
Fail("Fail to update database");
}
$rating->detail['uid'] = $login_uid;
$rating->detail['pid'] = $pid;
$rating->detail['rate'] = $score;
$rating->Add();
}
}
function StdSubmit(&$arg)
{
$pid = safefetch($arg, 'pid');
$source = isset($arg['source']) ? $arg['source'] : '';
$language = safefetch($arg, 'language');
$cid = 0;
$ret = submit_source($pid, $cid, $language, $source);
if (is_numeric($ret)) {
// success
$sid = intval($ret);
$problem = new ProblemTbl($pid);
$problem->Get();
$problem->update['stdsid'] = $sid;
$problem->Update();
MsgAndRedirect('stdprogram.php?pid=' . $pid);
} else {
MsgAndRedirect('stdprogram.php?pid=' . $pid, $ret);
}
}
/**
* Submit Source code to server
* @global type $login_uid
* @global type $login_username
* @global type $logged
* @param type $arg
* @return mixed if success, return sid. otherwise error message
*/
function submit_source($pid, $cid, $language, $source)
{
if (!is_logged()) {
return "Invalid login";
}
$pid = intval(trim($pid));
$source = trim($source);
if ($cid) {
$problem = new ContestProblem($cid);
if (!is_contest_accessible($cid)) {
return "You can't access to the contest";
}
if (is_contest_ended($cid) && !is_contest_modifiable($cid)) {
return "Contest is finished";
}
} else {
$problem = new ProblemTbl();
}
if (!$problem->Get($pid)) {
return "Invalid Problem ID!";
}
$acutal_cid = $problem->detail['cid'];
if (!$cid && $acutal_cid) {
// this is a problem automaticly added after the end of contest
if (!is_contest_accessible($acutal_cid)) {
return "You can't access to this problem";
}
if (!is_contest_modifiable($acutal_cid) && !is_contest_ended($acutal_cid)) {
return "Contest is not finished. Can't submit to normal problem";
}
}
$sdata = array();
$sdata["contest"] = $cid;
if ($language < 1 || $language > 4) {
return "Invalid language!";
}
$sdata['language'] = $language;
$app_config = get_app_config();
$codelength = strlen($source);
if ($codelength > $app_config['max_sourcecode_length']) {
return "Size of your submittion exceeds limitation.";
}
if ($codelength == 0) {
return "You can't submit an empty source code";
}
$sdata['uid'] = get_uid();
$sdata['time'] = date("Y-m-d H:i:s");
if ($cid) {
$sdata['pid'] = $problem->detail['pid'];
$cpid = $pid;
$pid = $sdata['pid'];
} else {
$sdata['pid'] = $pid;
}
$sdata['codelength'] = $codelength;
$sdata['sourcecode'] = mysql_real_escape_string($source);
$status = new StatusTbl();
$status->detail = $sdata;
$status_id = $status->Add();
$user = new UserTbl(get_uid());
$user->Get();
$user->update['submissions'] = $user->detail['submissions'] + 1;
$user->Update();
$problem = new ProblemTbl($pid);
$problem->Get();
$problem->update['submissions'] = $problem->detail['submissions'] + 1;
$problem->Update();
if ($cid) {
$con_status = new ContestStatus($cid);
$con_status->detail = array('cid' => $cid, 'sid' => $status_id, 'cpid' => $cpid);
$con_status->Add();
}
$queue = new QueueTbl();
$queue->detail['sid'] = $status_id;
if ($cid) {
$queue->detail['cid'] = $cid;
$queue->detail['cpid'] = $cpid;
}
$queue->Add();
return $status_id;
}
/**
* Registering problem into contest
* @param type $pid
* @param type $cid
* @param type $cpid
*/
function set_problem_cid($pid, $cid, $cpid)
{
$problem = new ProblemTbl($pid);
$problem->Get() or error('Error setting problem cid');
$problem->update['cid'] = $cid;
$problem->Update();
$contest_problem = new ContestProblem($cid);
$contest_problem->detail = array("cpid" => $cpid, "cid" => $cid, "pid" => $pid);
$contest_problem->Add();
}