/**
* Add answers to selected question.
* @param $testlog_id (int) testlog ID.
* @param $question_id (int) question ID.
* @param $question_type (int) type of question.
* @param $num_answers (int) number of alternative answers to display.
* @param $firsttest (int) ID of first test testuser_id.
* @param $testdata (array) array of test data.
* @return boolean TRUE in case of success, FALSE otherwise.
*/
function F_addQuestionAnswers($testlog_id, $question_id, $question_type, $num_answers, $firsttest, $testdata)
{
require_once '../config/tce_config.php';
global $db, $l;
if ($question_type == 3) {
// free text question
return true;
}
$randorder = F_getBoolean($testdata['test_random_answers_order']);
// for each question
if (F_getBoolean($testdata['test_random_questions_select']) or F_getBoolean($testdata['test_random_answers_select']) or $firsttest == 0) {
$answers_ids = array();
// array used to store answers IDs
switch ($question_type) {
case 1:
// MCSA
// select first right answer
$answers_ids += F_selectAnswers($question_id, 1, false, 1, 0, $randorder);
// select remaining answers
$answers_ids += F_selectAnswers($question_id, 0, false, $num_answers - 1, 1, $randorder);
break;
case 2:
// MCMA
// select answers
$answers_ids += F_selectAnswers($question_id, '', false, $num_answers, 0, $randorder);
break;
case 4:
// ORDERING
// select answers
$randorder = true;
$answers_ids += F_selectAnswers($question_id, '', true, 0, 0, $randorder);
break;
}
// randomizes the order of the answers
if ($randorder) {
shuffle($answers_ids);
} else {
ksort($answers_ids);
}
// add answers
F_addLogAnswers($testlog_id, $answers_ids);
} else {
// same answers for all test-takers
// --------------------------------
$sql = 'SELECT logansw_answer_id
FROM ' . K_TABLE_LOG_ANSWER . ', ' . K_TABLE_TESTS_LOGS . '
WHERE logansw_testlog_id=testlog_id
AND testlog_testuser_id=' . $firsttest . '
AND testlog_question_id=' . $question_id . '';
if ($randorder) {
$sql .= ' ORDER BY RAND()';
} else {
$sql .= ' ORDER BY logansw_order';
}
if ($r = F_db_query($sql, $db)) {
$answers_ids = array();
while ($m = F_db_fetch_array($r)) {
$answers_ids[] = $m['logansw_answer_id'];
}
F_addLogAnswers($testlog_id, $answers_ids);
} else {
F_display_db_error(false);
return false;
}
}
return true;
}
// MCSA
// select first right answer
$answers_ids += F_selectAnswers($q['id'], 1, false, 1, 0, $randorder, $test_answers_order_mode);
// select remaining answers
$answers_ids += F_selectAnswers($q['id'], 0, false, $q['answers'] - 1, 1, $randorder, $test_answers_order_mode);
break;
case 2:
// MCMA
// select answers
$answers_ids += F_selectAnswers($q['id'], '', false, $q['answers'], 0, $randorder, $test_answers_order_mode);
break;
case 4:
// ORDERING
// select answers
$randorder = true;
$answers_ids += F_selectAnswers($q['id'], '', true, 0, 0, $randorder, $test_answers_order_mode);
break;
}
// randomizes the order of the answers
if ($randorder) {
shuffle($answers_ids);
} else {
ksort($answers_ids);
}
// print answers
// add answers
$answ_id = 0;
// display multiple answers
while (list($key, $answer_id) = each($answers_ids)) {
++$answ_id;
// add answer ID to QR-Code data
// MCSA
// select first right answer
$answers_ids += F_selectAnswers($q['id'], 1, false, 1, 0, $randorder);
// select remaining answers
$answers_ids += F_selectAnswers($q['id'], 0, false, $q['answers'] - 1, 1, $randorder);
break;
case 2:
// MCMA
// select answers
$answers_ids += F_selectAnswers($q['id'], '', false, $q['answers'], 0, $randorder);
break;
case 4:
// ORDERING
// select answers
$randorder = true;
$answers_ids += F_selectAnswers($q['id'], '', true, 0, 0, $randorder);
break;
}
// randomizes the order of the answers
if ($randorder) {
shuffle($answers_ids);
} else {
ksort($answers_ids);
}
// print answers
// add answers
$answ_id = 0;
// display multiple answers
while (list($key, $answer_id) = each($answers_ids)) {
++$answ_id;
// add answer ID to QR-Code data
