$choice = array();
for ($i = 0; strlen($_POST["choice{$i}"]) > 0; ++$i) {
$choice[$i] = array($_POST["choice{$i}"], isset($_POST["correct{$i}"]) ? 'true' : 'false', isset($_POST["exclusive{$i}"]) ? 'true' : 'false');
}
$db->begin();
try {
if (($subject = $_POST['subject']) == 0) {
$newsubject = $_POST['newsubject'];
try {
$subject = $db->insertSubject($newsubject);
} catch (Exception $e) {
echo "<center>Không thể tạo <b>Môn</b> mới với tên '{$newsubject}'.</center>";
throw $e;
}
}
$questionID = $db->insertQuestion($question, $subject, isset($_POST['shuffleable']) ? 'true' : 'false', 0.5);
foreach ($choice as $c) {
$db->insertChoice($questionID, $c[0], $c[1], $c[2]);
}
$db->commit();
echo "<center>Tạo câu hỏi mới thành công!</center>";
} catch (Exception $e) {
$db->rollback();
?>
<center>Không thể tạo <b>Câu hỏi</b> mới.</center>
<center>Xin hãy kiểm tra thông tin đã nhập.</center>
<center><button onClick='history.back()'>Trở lại</button></center>
<?php
echo $e->getMessage();
return -1;
}
$db->begin();
try {
/* Exam */
$db->insertRandomExam();
/* Question and Choice */
$txtGen = new TXTGen();
$subjects = $db->getColumn('ID', 'oes_Subject');
foreach ($subjects as $subject) {
for ($i = 0; $i < 100; ++$i) {
$question = $txtGen->randParagraph(mt_rand(1, 6));
$rank = mt_rand() / mt_getrandmax();
$type = mt_rand(0, 2);
switch ($type) {
case 0:
// single choice
$questionID = $db->insertQuestion($question, $subject, 'true', $rank);
$n = mt_rand(3, 5);
$c = mt_rand(0, $n - 1);
for ($j = 0; $j < $n; ++$j) {
$choice = $txtGen->randSentence();
$db->insertChoice($questionID, $choice, $j == $c ? 'true' : 'false', 'true');
}
break;
case 1:
// multiple choice with an exclusive "no right answer" option
$questionID = $db->insertQuestion($question, $subject, 'false', $rank);
$n = mt_rand(3, 4);
$nc = 'true';
for ($j = 0; $j < $n; ++$j) {
$choice = $txtGen->randSentence();
if (mt_rand(0, 9) < 4) {
