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15db443c87
Change to review.php so that the student will only see the grade summary if they are allowed to view their scores - as determined by quiz options set by the teacher. Credit: Peter Bulmer peterbulmer@catalyst.net.nz
263 lines
11 KiB
PHP
263 lines
11 KiB
PHP
<?php // $Id$
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/**
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* This page prints a review of a particular quiz attempt
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*
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* @version $Id$
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* @author Martin Dougiamas and many others. This has recently been completely
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* rewritten by Alex Smith, Julian Sedding and Gustav Delius as part of
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* the Serving Mathematics project
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* {@link http://maths.york.ac.uk/serving_maths}
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package quiz
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*/
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require_once("../../config.php");
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require_once("locallib.php");
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$attempt = required_param('attempt', PARAM_INT); // A particular attempt ID for review
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$page = optional_param('page', 0, PARAM_INT); // The required page
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$showall = optional_param('showall', 0, PARAM_BOOL);
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if (! $attempt = get_record("quiz_attempts", "id", $attempt)) {
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error("No such attempt ID exists");
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}
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if (! $quiz = get_record("quiz", "id", $attempt->quiz)) {
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error("The quiz with id $attempt->quiz belonging to attempt $attempt is missing");
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}
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if (! $course = get_record("course", "id", $quiz->course)) {
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error("The course with id $quiz->course that the quiz with id $quiz->id belongs to is missing");
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}
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if (! $cm = get_coursemodule_from_instance("quiz", $quiz->id, $course->id)) {
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error("The course module for the quiz with id $quiz->id is missing");
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}
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if (!count_records('question_sessions', 'attemptid', $attempt->uniqueid)) {
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// this question has not yet been upgraded to the new model
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quiz_upgrade_states($attempt);
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}
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require_login($course->id, false, $cm);
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$isteacher = isteacher($course->id);
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$options = quiz_get_reviewoptions($quiz, $attempt, $isteacher);
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$popup = $isteacher ? 0 : $quiz->popup; // Controls whether this is shown in a javascript-protected window.
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if (!$isteacher) {
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if (!$attempt->timefinish) {
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redirect('attempt.php?q='.$quiz->id);
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}
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// If not even responses are to be shown in review then we
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// don't allow any review
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if (!($quiz->review & QUIZ_REVIEW_RESPONSES)) {
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if (empty($popup)) {
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redirect('view.php?q='.$quiz->id);
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} else {
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?><script type="text/javascript">
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opener.document.location.reload();
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self.close();
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</script><?php
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die();
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}
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}
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if ((time() - $attempt->timefinish) > 120) { // always allow review right after attempt
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if ((!$quiz->timeclose or time() < $quiz->timeclose) and !($quiz->review & QUIZ_REVIEW_OPEN)) {
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redirect('view.php?q='.$quiz->id, get_string("noreviewuntil", "quiz", userdate($quiz->timeclose)));
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}
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if ($quiz->timeclose and time() >= $quiz->timeclose and !($quiz->review & QUIZ_REVIEW_CLOSED)) {
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redirect('view.php?q='.$quiz->id, get_string("noreview", "quiz"));
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}
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}
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if ($attempt->userid != $USER->id) {
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error("This is not your attempt!", 'view.php?q='.$quiz->id);
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}
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}
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add_to_log($course->id, "quiz", "review", "review.php?id=$cm->id&attempt=$attempt->id", "$quiz->id", "$cm->id");
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/// Print the page header
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$strquizzes = get_string("modulenameplural", "quiz");
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$strreview = get_string("review", "quiz");
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$strscore = get_string("score", "quiz");
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$strgrade = get_string("grade");
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$strbestgrade = get_string("bestgrade", "quiz");
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$strtimetaken = get_string("timetaken", "quiz");
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$strtimecompleted = get_string("completedon", "quiz");
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$stroverdue = get_string("overdue", "quiz");
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if (!empty($popup)) {
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define('MESSAGE_WINDOW', true); // This prevents the message window coming up
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print_header($course->shortname.': '.format_string($quiz->name), '', '', '', '', false, '', '', false, '');
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/// Include Javascript protection for this page
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include('protect_js.php');
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} else {
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$strupdatemodule = isteacheredit($course->id)
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? update_module_button($cm->id, $course->id, get_string('modulename', 'quiz'))
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: "";
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print_header_simple(format_string($quiz->name), "",
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"<a href=\"index.php?id=$course->id\">$strquizzes</a>
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-> <a href=\"view.php?id=$cm->id\">".format_string($quiz->name,true)."</a> -> $strreview",
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"", "", true, $strupdatemodule);
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}
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echo '<div id="overDiv" style="position:absolute; visibility:hidden; z-index:1000;"></div>'; // for overlib
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/// Print heading and tabs if this is part of a preview
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if ($isteacher) {
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if ($attempt->userid == $USER->id) { // this is the report on a preview
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$currenttab = 'preview';
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} else {
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$currenttab = 'reports';
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$mode = '';
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}
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include('tabs.php');
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} else {
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print_heading(format_string($quiz->name));
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}
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/// Load all the questions and states needed by this script
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// load the questions needed by page
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$pagelist = $showall ? quiz_questions_in_quiz($attempt->layout) : quiz_questions_on_page($attempt->layout, $page);
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$sql = "SELECT q.*, i.grade AS maxgrade, i.id AS instance".
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" FROM {$CFG->prefix}question q,".
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" {$CFG->prefix}quiz_question_instances i".
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" WHERE i.quiz = '$quiz->id' AND q.id = i.question".
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" AND q.id IN ($pagelist)";
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if (!$questions = get_records_sql($sql)) {
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error('No questions found');
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}
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// Load the question type specific information
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if (!get_question_options($questions)) {
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error('Could not load question options');
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}
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// Restore the question sessions to their most recent states
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// creating new sessions where required
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if (!$states = get_question_states($questions, $quiz, $attempt)) {
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error('Could not restore question sessions');
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}
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/// Print infobox
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$timelimit = (int)$quiz->timelimit * 60;
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$overtime = 0;
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if ($attempt->timefinish) {
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if ($timetaken = ($attempt->timefinish - $attempt->timestart)) {
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if($timelimit && $timetaken > ($timelimit + 60)) {
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$overtime = $timetaken - $timelimit;
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$overtime = format_time($overtime);
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}
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$timetaken = format_time($timetaken);
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} else {
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$timetaken = "-";
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}
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} else {
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$timetaken = get_string('unfinished', 'quiz');
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}
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$table->align = array("right", "left");
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if ($attempt->userid <> $USER->id) {
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$student = get_record('user', 'id', $attempt->userid);
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$picture = print_user_picture($student->id, $course->id, $student->picture, false, true);
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$table->data[] = array($picture, '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$student->id.'&course='.$course->id.'">'.fullname($student, true).'</a>');
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}
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if ($isteacher and count($attempts = get_records_select('quiz_attempts', "quiz = '$quiz->id' AND userid = '$attempt->userid'", 'attempt ASC')) > 1) {
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// print list of attempts
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$attemptlist = '';
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foreach ($attempts as $at) {
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$attemptlist .= ($at->id == $attempt->id)
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? '<b>'.$at->attempt.'</b>, '
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: '<a href="review.php?attempt='.$at->id.($showall?'&showall=true':'').'">'.$at->attempt.'</a>, ';
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}
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$table->data[] = array(get_string('attempts', 'quiz').':', trim($attemptlist, ' ,'));
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}
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$table->data[] = array(get_string('startedon', 'quiz').':', userdate($attempt->timestart));
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if ($attempt->timefinish) {
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$table->data[] = array("$strtimecompleted:", userdate($attempt->timefinish));
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$table->data[] = array("$strtimetaken:", $timetaken);
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}
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if (!empty($overtime)) {
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$table->data[] = array("$stroverdue:", $overtime);
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}
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//if the student is allowed to see their score
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if ($options->scores) {
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if ($quiz->grade and $quiz->sumgrades) {
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if($overtime) {
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$result->sumgrades = "0";
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$result->grade = "0.0";
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}
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$percentage = round(($attempt->sumgrades/$quiz->sumgrades)*100, 0);
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$grade = round(($attempt->sumgrades/$quiz->sumgrades)*$quiz->grade, $CFG->quiz_decimalpoints);
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$rawscore = round($attempt->sumgrades, $CFG->quiz_decimalpoints);
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$table->data[] = array("$strscore:", "$rawscore/$quiz->sumgrades ($percentage %)");
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$table->data[] = array("$strgrade:", $grade.get_string('outof', 'quiz').$quiz->grade);
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}
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}
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if ($isteacher and $attempt->userid == $USER->id) {
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// the teacher is at the end of a preview. Print button to start new preview
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unset($buttonoptions);
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$buttonoptions['q'] = $quiz->id;
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$buttonoptions['forcenew'] = true;
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echo '<center>';
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print_single_button($CFG->wwwroot.'/mod/quiz/attempt.php', $buttonoptions, get_string('startagain', 'quiz'));
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echo '</center>';
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} else { // print number of the attempt
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print_heading(get_string('reviewofattempt', 'quiz', $attempt->attempt));
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}
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print_table($table);
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// print javascript button to close the window, if necessary
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if (!$isteacher) {
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include('attempt_close_js.php');
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}
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/// Print the navigation panel if required
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$numpages = quiz_number_of_pages($attempt->layout);
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if ($numpages > 1 and !$showall) {
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print_paging_bar($numpages, $page, 1, 'review.php?attempt='.$attempt->id.'&');
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echo '<center><a href="review.php?attempt='.$attempt->id.'&showall=true">';
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print_string('showall', 'quiz');
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echo '</a></center>';
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}
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/// Print all the questions
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$pagequestions = explode(',', $pagelist);
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$number = quiz_first_questionnumber($attempt->layout, $pagelist);
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foreach ($pagequestions as $i) {
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if (!isset($questions[$i])) {
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print_simple_box_start('center', '90%');
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echo '<b><font size="+1">' . $number . '</font></b><br />';
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notify(get_string('errormissingquestion', 'quiz', $i));
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print_simple_box_end();
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$number++; // Just guessing that the missing question would have lenght 1
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continue;
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}
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$options->validation = QUESTION_EVENTVALIDATE === $states[$i]->event;
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$options->history = ($isteacher and !$attempt->preview) ? 'all' : 'graded';
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// Print the question
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if ($i > 0) {
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echo "<br />\n";
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}
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print_question($questions[$i], $states[$i], $number, $quiz, $options);
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$number += $questions[$i]->length;
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}
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// Print the navigation panel if required
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if ($numpages > 1 and !$showall) {
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print_paging_bar($numpages, $page, 1, 'review.php?attempt='.$attempt->id.'&');
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}
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// print javascript button to close the window, if necessary
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if (!$isteacher) {
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include('attempt_close_js.php');
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}
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if (empty($popup)) {
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print_footer($course);
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}
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?>
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