error('Questions missing');
}
// Load the question type specific information
if (!get_question_options($closequestions)) {
error('Could not load question options');
}
// Restore the question sessions
if (!($closestates = get_question_states($closequestions, $quiz, $attempt))) {
error('Could not restore question sessions');
}
$success = true;
foreach ($closequestions as $key => $question) {
$action->event = QUESTION_EVENTCLOSE;
$action->responses = $closestates[$key]->responses;
$action->timestamp = $closestates[$key]->timestamp;
if (question_process_responses($question, $closestates[$key], $action, $quiz, $attempt)) {
save_question_session($question, $closestates[$key]);
} else {
$success = false;
}
}
if (!$success) {
$pagebit = '';
if ($page) {
$pagebit = '&page=' . $page;
}
print_error('errorprocessingresponses', 'question', $CFG->wwwroot . '/mod/quiz/attempt.php?q=' . $quiz->id . $pagebit);
}
add_to_log($course->id, 'quiz', 'close attempt', 'review.php?attempt=' . $attempt->id, $quiz->id, $cm->id);
}
/// Update the quiz attempt and the overall grade for the quiz
/**
* For a given question in an attempt we walk the complete history of states
* and recalculate the grades as we go along.
*
* This is used when a question is changed and old student
* responses need to be marked with the new version of a question.
*
* TODO: Make sure this is not quiz-specific
*
* @return boolean Indicates whether the grade has changed
* @param object $question A question object
* @param object $attempt The attempt, in which the question needs to be regraded.
* @param object $cmoptions
* @param boolean $verbose Optional. Whether to print progress information or not.
*/
function regrade_question_in_attempt($question, $attempt, $cmoptions, $verbose = false)
{
// load all states for this question in this attempt, ordered in sequence
if ($states = get_records_select('question_states', "attempt = '{$attempt->uniqueid}' AND question = '{$question->id}'", 'seq_number ASC')) {
$states = array_values($states);
// Subtract the grade for the latest state from $attempt->sumgrades to get the
// sumgrades for the attempt without this question.
$attempt->sumgrades -= $states[count($states) - 1]->grade;
// Initialise the replaystate
$state = clone $states[0];
$state->manualcomment = get_field('question_sessions', 'manualcomment', 'attemptid', $attempt->uniqueid, 'questionid', $question->id);
restore_question_state($question, $state);
$state->sumpenalty = 0.0;
$replaystate = clone $state;
$replaystate->last_graded = $state;
$changed = false;
for ($j = 1; $j < count($states); $j++) {
restore_question_state($question, $states[$j]);
$action = new stdClass();
$action->responses = $states[$j]->responses;
$action->timestamp = $states[$j]->timestamp;
// Change event to submit so that it will be reprocessed
if (QUESTION_EVENTCLOSE == $states[$j]->event or QUESTION_EVENTGRADE == $states[$j]->event or QUESTION_EVENTCLOSEANDGRADE == $states[$j]->event) {
$action->event = QUESTION_EVENTSUBMIT;
// By default take the event that was saved in the database
} else {
$action->event = $states[$j]->event;
}
if ($action->event == QUESTION_EVENTMANUALGRADE) {
// Ensure that the grade is in range - in the past this was not checked,
// but now it is (MDL-14835) - so we need to ensure the data is valid before
// proceeding.
if ($states[$j]->grade < 0) {
$states[$j]->grade = 0;
} else {
if ($states[$j]->grade > $question->maxgrade) {
$states[$j]->grade = $question->maxgrade;
}
}
$error = question_process_comment($question, $replaystate, $attempt, $replaystate->manualcomment, $states[$j]->grade);
if (is_string($error)) {
notify($error);
}
} else {
// Reprocess (regrade) responses
if (!question_process_responses($question, $replaystate, $action, $cmoptions, $attempt)) {
$verbose && notify("Couldn't regrade state #{$state->id}!");
}
}
// We need rounding here because grades in the DB get truncated
// e.g. 0.33333 != 0.3333333, but we want them to be equal here
if (round((double) $replaystate->raw_grade, 5) != round((double) $states[$j]->raw_grade, 5) or round((double) $replaystate->penalty, 5) != round((double) $states[$j]->penalty, 5) or round((double) $replaystate->grade, 5) != round((double) $states[$j]->grade, 5)) {
$changed = true;
}
$replaystate->id = $states[$j]->id;
$replaystate->changed = true;
$replaystate->update = true;
// This will ensure that the existing database entry is updated rather than a new one created
save_question_session($question, $replaystate);
}
if ($changed) {
// TODO, call a method in quiz to do this, where 'quiz' comes from
// the question_attempts table.
update_record('quiz_attempts', $attempt);
}
return $changed;
}
return false;
}
/**
* For a given question in an attempt we walk the complete history of states
* and recalculate the grades as we go along.
*
* This is used when a question is changed and old student
* responses need to be marked with the new version of a question.
*
* TODO: Make sure this is not quiz-specific
*
* @return boolean Indicates whether the grade has changed
* @param object $question A question object
* @param object $attempt The attempt, in which the question needs to be regraded.
* @param object $cmoptions
* @param boolean $verbose Optional. Whether to print progress information or not.
* @param boolean $dryrun Optional. Whether to make changes to grades records
* or record that changes need to be made for a later regrade.
*/
function regrade_question_in_attempt($question, $attempt, $cmoptions, $verbose = false, $dryrun = false)
{
global $DB;
// load all states for this question in this attempt, ordered in sequence
if ($states = $DB->get_records('question_states', array('attempt' => $attempt->uniqueid, 'question' => $question->id), 'seq_number ASC')) {
$states = array_values($states);
// Subtract the grade for the latest state from $attempt->sumgrades to get the
// sumgrades for the attempt without this question.
$attempt->sumgrades -= $states[count($states) - 1]->grade;
// Initialise the replaystate
$replaystate = question_load_specific_state($question, $cmoptions, $attempt, $states[0]->id);
$replaystate->sumpenalty = 0;
$replaystate->last_graded->sumpenalty = 0;
$changed = false;
for ($j = 1; $j < count($states); $j++) {
restore_question_state($question, $states[$j]);
$action = new stdClass();
$action->responses = $states[$j]->responses;
$action->timestamp = $states[$j]->timestamp;
// Change event to submit so that it will be reprocessed
if (in_array($states[$j]->event, array(QUESTION_EVENTCLOSE, QUESTION_EVENTGRADE, QUESTION_EVENTCLOSEANDGRADE))) {
$action->event = QUESTION_EVENTSUBMIT;
// By default take the event that was saved in the database
} else {
$action->event = $states[$j]->event;
}
if ($action->event == QUESTION_EVENTMANUALGRADE) {
// Ensure that the grade is in range - in the past this was not checked,
// but now it is (MDL-14835) - so we need to ensure the data is valid before
// proceeding.
if ($states[$j]->grade < 0) {
$states[$j]->grade = 0;
$changed = true;
} else {
if ($states[$j]->grade > $question->maxgrade) {
$states[$j]->grade = $question->maxgrade;
$changed = true;
}
}
if (!$dryrun) {
$error = question_process_comment($question, $replaystate, $attempt, $replaystate->manualcomment, $states[$j]->grade);
if (is_string($error)) {
notify($error);
}
} else {
$replaystate->grade = $states[$j]->grade;
}
} else {
// Reprocess (regrade) responses
if (!question_process_responses($question, $replaystate, $action, $cmoptions, $attempt) && $verbose) {
$a = new stdClass();
$a->qid = $question->id;
$a->stateid = $states[$j]->id;
notify(get_string('errorduringregrade', 'question', $a));
}
// We need rounding here because grades in the DB get truncated
// e.g. 0.33333 != 0.3333333, but we want them to be equal here
if (round((double) $replaystate->raw_grade, 5) != round((double) $states[$j]->raw_grade, 5) or round((double) $replaystate->penalty, 5) != round((double) $states[$j]->penalty, 5) or round((double) $replaystate->grade, 5) != round((double) $states[$j]->grade, 5)) {
$changed = true;
}
// If this was previously a closed state, and it has been knoced back to
// graded, then fix up the state again.
if ($replaystate->event == QUESTION_EVENTGRADE && ($states[$j]->event == QUESTION_EVENTCLOSE || $states[$j]->event == QUESTION_EVENTCLOSEANDGRADE)) {
$replaystate->event = $states[$j]->event;
}
}
$replaystate->id = $states[$j]->id;
$replaystate->changed = true;
$replaystate->update = true;
// This will ensure that the existing database entry is updated rather than a new one created
if (!$dryrun) {
save_question_session($question, $replaystate);
}
}
if ($changed) {
if (!$dryrun) {
// TODO, call a method in quiz to do this, where 'quiz' comes from
// the question_attempts table.
$DB->update_record('quiz_attempts', $attempt);
}
}
if ($changed) {
$toinsert = new object();
$toinsert->oldgrade = round((double) $states[count($states) - 1]->grade, 5);
$toinsert->newgrade = round((double) $replaystate->grade, 5);
$toinsert->attemptid = $attempt->uniqueid;
$toinsert->questionid = $question->id;
//the grade saved is the old grade if the new grade is saved
//it is the new grade if this is a dry run.
$toinsert->regraded = $dryrun ? 0 : 1;
$toinsert->timemodified = time();
$DB->insert_record('quiz_question_regrade', $toinsert);
return true;
} else {
return false;
}
}
return false;
}
$historylength++;
$curstate =& $states[$historylength][$id];
$curstate->changed = false;
// Process the responses
unset($form['id']);
unset($form['quizid']);
unset($form['continue']);
unset($form['markall']);
unset($form['finishattempt']);
unset($form['back']);
unset($form['startagain']);
$event = $finishattempt ? QUESTION_EVENTCLOSE : QUESTION_EVENTSUBMIT;
if ($actions = question_extract_responses($questions, $form, $event)) {
$actions[$id]->timestamp = 0;
// We do not care about timelimits here
if (!question_process_responses($questions[$id], $curstate, $actions[$id], $quiz, $attempt)) {
unset($SESSION->quizpreview);
print_error('errorprocessingresponses', 'question', $url->out());
}
if (!$curstate->changed) {
// Update the current state rather than creating a new one
$historylength--;
unset($states[$historylength]);
$states = array_values($states);
$curstate =& $states[$historylength][$id];
}
}
} else {
$submitted = false;
$curstate =& $states[$historylength][$id];
}
/// We have been asked to finish attempt, so do that //////////////////////
/// Now load the state of every question, reloading the ones we messed around
/// with above.
$attemptobj->preload_question_states();
$attemptobj->load_question_states();
/// Move each question to the closed state.
$success = true;
$attempt = $attemptobj->get_attempt();
foreach ($attemptobj->get_questions() as $id => $question) {
$state = $attemptobj->get_question_state($id);
$action = new stdClass();
$action->event = QUESTION_EVENTCLOSE;
$action->responses = $state->responses;
$action->responses['_flagged'] = $state->flagged;
$action->timestamp = $state->timestamp;
if (question_process_responses($attemptobj->get_question($id), $state, $action, $attemptobj->get_quiz(), $attempt)) {
save_question_session($attemptobj->get_question($id), $state);
} else {
$success = false;
}
}
if (!$success) {
print_error('errorprocessingresponses', 'question', $attemptobj->attempt_url(0, $page));
}
/// Log the end of this attempt.
add_to_log($attemptobj->get_courseid(), 'quiz', 'close attempt', 'review.php?attempt=' . $attemptobj->get_attemptid(), $attemptobj->get_quizid(), $attemptobj->get_cmid());
/// Update the quiz attempt record.
$attempt->timemodified = $timenow;
$attempt->timefinish = $timenow;
$DB->update_record('quiz_attempts', $attempt);
if (!$attempt->preview) {
function evaluate_quiz($acode, $jobid, $newattempt, $blended)
{
global $USER;
global $CFG;
mtrace("Evaluation QUIZ Processing..." . "<BR><BR>");
try {
print "New Attempt is: " . $newattempt . "<BR/>";
$detected_userid = find_userid($acode, $jobid);
if ($detected_userid == null or $detected_userid == '') {
throw new EvaluationError(get_string('ErrorUserIDEmpty', 'blended'), EvaluationError::USERID_IS_EMPTY);
}
$user_reg = blended_get_user($detected_userid, $blended);
if ($user_reg == null) {
throw new EvaluationError(get_string('ErrorUserNotInCourse', 'blended'), EvaluationError::USER_NOT_IN_THIS_COURSE);
}
$userid = $user_reg->id;
mtrace('Obtained USERID value: ' . $userid . " OK. <BR/>");
$quiz = get_quiz($acode);
$attempts = quiz_get_user_attempts($quiz->id, $userid, 'all', true);
mtrace("Searching quiz... Success." . "<BR/>");
$uniqueid = get_uniqueid($acode);
mtrace('Obtained uniqueid: OK. <BR/>');
$timestamp = get_timestamp($acode);
mtrace('Obtained timestamp: OK. <BR/>');
if (!get_record('quiz_attempts', 'uniqueid', $uniqueid)) {
$newattempt = true;
} else {
$newattempt = false;
mtrace("User {$userid} had opened this attempt already.");
}
$attemptnumber = 1;
if ($newattempt == false) {
mtrace('Obtaining user attempt...<BR/>');
set_attempt_unfinished($uniqueid);
$attempt = quiz_get_user_attempt_unfinished($quiz->id, $userid);
} elseif ($newattempt == true) {
mtrace('Creating new attempt...<BR/>');
$attempt = create_new_attempt($quiz, $attemptnumber, $userid, $acode, $uniqueid, $timestamp);
// Save the attempt
if (!insert_record('quiz_attempts', $attempt)) {
throw new EvaluationError(get_string('ErrorCouldNotCreateAttempt', 'blended'), EvaluationError::CREATE_QUIZ_ATTEMPT_ERROR);
}
// Actualizamos el estado de las imágenes para indicar que ya está creado un nuevo attempt
update_images_status($acode, $jobid);
}
update_question_attempts($uniqueid);
// /*
mtrace('<BR>Getting questions and question options... ');
$questions = get_questions($attempt, $quiz);
if (!get_question_options($questions)) {
error('Could not load question options');
}
mtrace('Success! <BR>');
// print ("<BR>He obtenido questions: ");
//print_object($questions);
$lastattemptid = false;
// if ($attempt->attempt > 1 and $quiz->attemptonlast and !$attempt->preview) {
// Find the previous attempt
// if (!$lastattemptid = get_field('quiz_attempts', 'uniqueid', 'quiz', $attempt->quiz, 'userid', $attempt->userid, 'attempt', $attempt->attempt-1)) {
// error('Could not find previous attempt to build on');
// }
//}
//print ('He obtenido lastattemptid');
mtrace('Getting question states... ');
if (!($states = get_question_states($questions, $quiz, $attempt, $lastattemptid))) {
error('Could not restore question sessions');
}
mtrace('Success! <BR>');
mtrace('Getting responses... <BR>');
$responses = get_responses($acode, $jobid, $attempt);
//print('Estas son las responses:');
//print_object($responses);
//$timestamp=time();
$event = 8;
$actions = question_extract_responses($questions, $responses, $event);
$questionids = get_questionids($acode);
// print $questionids;
$questionidarray = explode(',', $questionids);
$success = true;
mtrace('<BR> Processing responses and saving session... ');
foreach ($questionidarray as $i) {
if (!isset($actions[$i])) {
$actions[$i]->responses = array('' => '');
$actions[$i]->event = QUESTION_EVENTOPEN;
}
$actions[$i]->timestamp = $timestamp;
if (question_process_responses($questions[$i], $states[$i], $actions[$i], $quiz, $attempt)) {
save_question_session($questions[$i], $states[$i]);
} else {
$success = false;
}
}
mtrace('Success! <BR>');
// Set the attempt to be finished
$timestamp = time();
//$attempt->timefinish = $timestamp;
// Update the quiz attempt and the overall grade for the quiz
mtrace('<BR> Finishing the attempt... ');
// print_object ($attempt);
if (set_field('quiz_attempts', 'timefinish', $timestamp, 'uniqueid', $uniqueid) == false) {
throw new EvaluationError('Unable to finish the quiz attempt!', EvaluationError::FINISH_QUIZ_ATTEMPT_ERROR);
}
mtrace('Success! <BR>');
if ($attempt->attempt > 1 || $attempt->timefinish > 0 and !$attempt->preview) {
mtrace('<BR> Saving quiz grade... ');
quiz_save_best_grade($quiz, $userid);
}
mtrace('Success! <BR>');
// */
mtrace("Process Done. <BR><BR>");
mtrace("<center> Your quiz has been succesfully evaluated!! </center>");
} catch (EvaluationError $e) {
throw $e;
}
return;
}