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