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<?php // $Id$
// This page prints a particular instance of quiz
require_once("../../config.php");
require_once("locallib.php");
require_once($CFG->libdir.'/blocklib.php');
require_once('pagelib.php');
$id = optional_param('id', 0, PARAM_INT); // Course Module ID, or
$q = optional_param('q', 0, PARAM_INT); // quiz ID
$edit = optional_param('edit', -1, PARAM_BOOL);
if ($id) {
if (! $cm = get_coursemodule_from_id('quiz', $id)) {
error("There is no coursemodule with id $id");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("Course is misconfigured");
}
if (! $quiz = get_record("quiz", "id", $cm->instance)) {
error("The quiz with id $cm->instance corresponding to this coursemodule $id is missing");
}
} else {
if (! $quiz = get_record("quiz", "id", $q)) {
error("There is no quiz with id $q");
}
if (! $course = get_record("course", "id", $quiz->course)) {
error("The course with id $quiz->course that the quiz with id $q belongs to is missing");
}
if (! $cm = get_coursemodule_from_instance("quiz", $quiz->id, $course->id)) {
error("The course module for the quiz with id $q is missing");
}
}
require_login($course->id, false, $cm);
$isteacher = isteacher($course->id);
// if no questions have been set up yet redirect to edit.php
if (!$quiz->questions and isteacheredit($course->id)) {
redirect('edit.php?quizid='.$quiz->id);
}
add_to_log($course->id, "quiz", "view", "view.php?id=$cm->id", $quiz->id, $cm->id);
$timenow = time();
// Initialize $PAGE, compute blocks
$PAGE = page_create_instance($quiz->id);
$pageblocks = blocks_setup($PAGE);
$blocks_preferred_width = bounded_number(180, blocks_preferred_width($pageblocks[BLOCK_POS_LEFT]), 210);
// Print the page header
if (($edit != -1) and $PAGE->user_allowed_editing()) {
$USER->editing = $edit;
}
//only check pop ups if the user is not a teacher, and popup is set
$bodytags = (isteacher($course->id) or !$quiz->popup)?'':'onload="popupchecker(\'' . get_string('popupblockerwarning', 'quiz') . '\');"';
$PAGE->print_header($course->shortname.': %fullname%','',$bodytags);
echo '<table id="layout-table"><tr>';
if(!empty($CFG->showblocksonmodpages) && (blocks_have_content($pageblocks, BLOCK_POS_LEFT) || $PAGE->user_is_editing())) {
echo '<td style="width: '.$blocks_preferred_width.'px;" id="left-column">';
blocks_print_group($PAGE, $pageblocks, BLOCK_POS_LEFT);
echo '</td>';
}
echo '<td id="middle-column">';
$available = ($quiz->timeopen < $timenow and ($timenow < $quiz->timeclose or !$quiz->timeclose)) || $isteacher;
// Print the main part of the page
// Print heading and tabs for teacher
if ($isteacher) {
$currenttab = 'info';
include('tabs.php');
}
print_heading(format_string($quiz->name));
if (trim(strip_tags($quiz->intro))) {
$formatoptions->noclean = true;
print_simple_box(format_text($quiz->intro, FORMAT_MOODLE, $formatoptions), "center");
}
if ($quiz->attempts > 1) {
echo "<p align=\"center\">".get_string("attemptsallowed", "quiz").": $quiz->attempts</p>";
echo "<p align=\"center\">".get_string("grademethod", "quiz").": ".$QUIZ_GRADE_METHOD[$quiz->grademethod]."</p>";
} else {
echo "<br />";
}
if ($available) {
if ($quiz->timelimit) {
echo "<p align=\"center\">".get_string("quiztimelimit","quiz", format_time($quiz->timelimit * 60))."</p>";
}
quiz_view_dates($quiz);
} else if ($timenow < $quiz->timeopen) {
echo "<p align=\"center\">".get_string("quiznotavailable", "quiz", userdate($quiz->timeopen));
} else {
echo "<p align=\"center\">".get_string("quizclosed", "quiz", userdate($quiz->timeclose));
}
// This is all the teacher will get
if ($isteacher) {
if ($a->attemptnum = count_records('quiz_attempts', 'quiz', $quiz->id, 'preview', 0)) {
$a->studentnum = count_records_select('quiz_attempts', "quiz = '$quiz->id' AND preview = '0'", 'COUNT(DISTINCT userid)');
$a->studentstring = $course->students;
notify("<a href=\"report.php?mode=overview&amp;id=$cm->id\">".get_string('numattempts', 'quiz', $a).'</a>');
}
echo '</td></tr></table>';
print_footer($course);
exit;
}
if (isguest()) {
$wwwroot = $CFG->wwwroot.'/login/index.php';
if (!empty($CFG->loginhttps)) {
$wwwroot = str_replace('http:','https:', $wwwroot);
}
notice_yesno(get_string('guestsno', 'quiz').'<br /><br />'.get_string('liketologin'),
$wwwroot, $_SERVER['HTTP_REFERER']);
print_footer($course);
echo '</td></tr></table>';
exit;
}
if ($attempts = quiz_get_user_attempts($quiz->id, $USER->id)) {
$numattempts = count($attempts);
} else {
$numattempts = 0;
}
$unfinished = false;
if ($unfinishedattempt = quiz_get_user_attempt_unfinished($quiz->id, $USER->id)) {
$attempts[] = $unfinishedattempt;
$unfinished = true;
}
$strattempt = get_string("attempt", "quiz");
$strtimetaken = get_string("timetaken", "quiz");
$strtimecompleted = get_string("timecompleted", "quiz");
$strgrade = get_string("grade");
$strmarks = get_string('marks', 'quiz');
$strbestgrade = $QUIZ_GRADE_METHOD[$quiz->grademethod];
$windowoptions = "left=0, top=0, channelmode=yes, fullscreen=yes, scrollbars=yes, resizeable=no, directories=no, toolbar=no, titlebar=no, location=no, status=no, menubar=no";
$mygrade = quiz_get_best_grade($quiz, $USER->id);
/// Now print table with existing attempts
$gradecolumn=0;
$overallstats=1;
if ($attempts) {
//step thru each attempt, checking there are any attempts
//for which the score can be displayed (need grade columns),
//and checking if overall grades can be displayed - no attempts for
//which the score cannot be displayed
foreach ($attempts as $attempt) {
$attemptoptions = quiz_get_reviewoptions($quiz, $attempt, $isteacher);
$attemptoptions->scores ? $gradecolumn=1 : $overallstats=0;
}
/// prepare table header
$table->head = array($strattempt, $strtimecompleted);
$table->align = array("center", "left");
$table->size = array("", "");
if ($gradecolumn && $quiz->grade and $quiz->sumgrades) { // Grades used so have more columns in table
if ($quiz->grade <> $quiz->sumgrades) {
$table->head[] = "$strmarks / $quiz->sumgrades";
$table->align[] = 'right';
$table->size[] = '';
}
$table->head[] = "$strgrade / $quiz->grade";
$table->align[] = 'right';
$table->size[] = '';
}
if (isset($quiz->showtimetaken)) {
$table->head[] = $strtimetaken;
$table->align[] = 'center';
$table->size[] = '';
}
/// One row for each attempt
foreach ($attempts as $attempt) {
/// prepare strings for time taken and date completed
$timetaken = '';
$datecompleted = '';
if ($attempt->timefinish > 0) { // attempt has finished
$timetaken = format_time($attempt->timefinish - $attempt->timestart);
$datecompleted = userdate($attempt->timefinish);
} else if ($available) { // The student can continue this attempt, so put appropriate link
$timetaken = format_time(time() - $attempt->timestart);
$datecompleted = "\n".'<script language="javascript" type="text/javascript">';
$datecompleted .= "\n<!--\n"; // -->
if (!empty($CFG->usesid) && !isset($_COOKIE[session_name()])) {
$attempturl=sid_process_url("attempt.php?id=$cm->id");
} else {
$attempturl="attempt.php?id=$cm->id";
};
if (!empty($quiz->popup)) {
$datecompleted .= "var windowoptions = 'left=0, top=0, height='+window.screen.height+
', width='+window.screen.width+', channelmode=yes, fullscreen=yes, scrollbars=yes, '+
'resizeable=no, directories=no, toolbar=no, titlebar=no, location=no, status=no, '+
'menubar=no';\n";
$jslink = "javascript:var popup = window.open(\\'$attempturl\\', \\'quizpopup\\', windowoptions);";
} else {
$jslink = $attempturl;
}
$linktext = get_string('continueattemptquiz', 'quiz');
$datecompleted .= "document.write('<a href=\"$jslink\" alt=\"$linktext\">$linktext</a>');";
$datecompleted .= "\n-->\n";
$datecompleted .= '</script>';
$datecompleted .= '<noscript>';
$datecompleted .= '<strong>'.get_string('noscript', 'quiz').'</strong>';
$datecompleted .= '</noscript>';
} else { // attempt was not completed but is also not available any more.
$timetaken = format_time($quiz->timeclose - $attempt->timestart);
$datecompleted = $quiz->timeclose ? userdate($quiz->timeclose) : '';
}
$attemptoptions = quiz_get_reviewoptions($quiz, $attempt, $isteacher);
/// prepare strings for attempt number, mark and grade
//if attempt's score is allowed to be viewed, & qz->sumgrades and qz->sumgrades defined:
if ($attemptoptions->scores && $quiz->grade and $quiz->sumgrades) {
$attemptmark = round($attempt->sumgrades,$quiz->decimalpoints);
$attemptgrade = round(($attempt->sumgrades/$quiz->sumgrades)*$quiz->grade,$quiz->decimalpoints);
// highlight the highest grade if appropriate
if ($overallstats && $attemptgrade == $mygrade and ($quiz->grademethod == QUIZ_GRADEHIGHEST)) {
$attemptgrade = "<span class=\"highlight\">$attemptgrade</span>";
}
// if attempt is closed and review is allowed then make attemptnumber and
// mark and grade into links to review page
if (quiz_review_allowed($quiz) and $attempt->timefinish > 0) {
if ($quiz->popup) { // need to link to popup window
$attemptmark = link_to_popup_window ("/mod/quiz/review.php?q=$quiz->id&amp;attempt=$attempt->id", 'quizpopup', round($attempt->sumgrades,$quiz->decimalpoints), '+window.screen.height+', '+window.screen.width+', '', $windowoptions, true);
$attemptgrade = link_to_popup_window ("/mod/quiz/review.php?q=$quiz->id&amp;attempt=$attempt->id", 'quizpopup', $attemptgrade, '+window.screen.height+', '+window.screen.width+', '', $windowoptions, true);
$attempt->attempt = link_to_popup_window ("/mod/quiz/review.php?q=$quiz->id&amp;attempt=$attempt->id", 'quizpopup', "#$attempt->attempt", '+window.screen.height+', '+window.screen.width+', '', $windowoptions, true);
} else {
$attemptmark = "<a href=\"review.php?q=$quiz->id&amp;attempt=$attempt->id\">".round($attempt->sumgrades,$quiz->decimalpoints).'</a>';
$attemptgrade = "<a href=\"review.php?q=$quiz->id&amp;attempt=$attempt->id\">$attemptgrade</a>";
$attempt->attempt = "<a href=\"review.php?q=$quiz->id&amp;attempt=$attempt->id\">#$attempt->attempt</a>";
}
}
if ($quiz->grade <> $quiz->sumgrades) {
$table->data[] = array( $attempt->attempt,
$datecompleted,
$attemptmark, $attemptgrade);
} else {
$table->data[] = array( $attempt->attempt,
$datecompleted,
$attemptgrade);
}
} else { // No grades are being used
if (quiz_review_allowed($quiz)) {
if($attempt->timefinish > 0) {
$attempt->attempt = "<a href=\"review.php?q=$quiz->id&amp;attempt=$attempt->id\">#$attempt->attempt</a>";
} else {
$attempt->attempt = "<a href=\"attempt.php?id=$id\">#$attempt->attempt</a>";
}
}
$helpbutton=helpbutton('missing\ grade', get_string('wheregrade', 'quiz'), 'quiz', true, false, '',true);
if($gradecolumn) {
$table->data[] = array( $attempt->attempt,
$datecompleted,
$helpbutton);
} else {
$table->data[] = array( $attempt->attempt,
$datecompleted);
}
}
if (isset($quiz->showtimetaken)) {
$table->data[] = $timetaken;
}
}
print_table($table);
}
if (!$quiz->questions) {
print_heading(get_string("noquestions", "quiz"));
} else {
if ($numattempts < $quiz->attempts or !$quiz->attempts) {
if ($available) {
$options["id"] = $cm->id;
//if overall stats are allowed (no attemps' grade not visible),
//and there is at least one attempt, and quiz->grade:
if ($overallstats and $numattempts and $quiz->grade) {
print_heading("$strbestgrade: $mygrade / $quiz->grade.");
}
echo "<br />";
echo "</p>";
echo "<div align=\"center\">";
if ($quiz->delay1 or $quiz->delay2) {
//quiz enforced time delay
$lastattempt_obj = get_record_select('quiz_attempts', "quiz = $quiz->id AND attempt = $numattempts AND userid = $USER->id", 'timefinish');
if ($lastattempt_obj) {
$lastattempt = $lastattempt_obj->timefinish;
}
if($numattempts == 1 && $quiz->delay1) {
if ($timenow - $quiz->delay1 > $lastattempt) {
print_start_quiz_button($quiz, $attempts, $numattempts, $unfinished, $cm);
} else {
$notify_msg = get_string('temporaryblocked', 'quiz') . '<b>'. userdate($lastattempt + $quiz->delay1). '<b>';
print_simple_box($notify_msg, "center");
}
} else if($numattempts > 1 && $quiz->delay2) {
if ($timenow - $quiz->delay2 > $lastattempt) {
print_start_quiz_button($quiz, $attempts, $numattempts, $unfinished, $cm);
} else {
$notify_msg = get_string('temporaryblocked', 'quiz') . '<b>'. userdate($lastattempt + $quiz->delay2). '<b>';
print_simple_box($notify_msg, "center");
}
} else {
print_start_quiz_button($quiz, $attempts, $numattempts, $unfinished, $cm);
}
} else {
print_start_quiz_button($quiz, $attempts, $numattempts, $unfinished, $cm);
}
echo "</div>\n";
}
} else {
print_heading(get_string("nomoreattempts", "quiz"));
//if $quiz->grade and $quiz->sumgrades, and student is allowed to
//see summary statistics (no attempt's grade is concealed),
//show the student their final grade
if ($quiz->grade and $quiz->sumgrades and $overallstats) {
print_heading(get_string("yourfinalgradeis", "quiz", "$mygrade / $quiz->grade"));
}
print_continue('../../course/view.php?id='.$course->id);
}
}
// Finish the page
echo '</td></tr></table>';
print_footer($course);
function quiz_review_allowed($quiz) {
// If not even responses are to be shown in review then we
// don't allow any review
if (!($quiz->review & QUIZ_REVIEW_RESPONSES)) {
return false;
}
if ((!$quiz->timeclose or time() < $quiz->timeclose) and !($quiz->review & QUIZ_REVIEW_OPEN)) {
return false;
}
if (($quiz->timeclose and time() > $quiz->timeclose) and !($quiz->review & QUIZ_REVIEW_CLOSED)) {
return false;
}
return true;
}
function print_start_quiz_button($quiz, $attempts, $numattempts, $unfinished, $cm) {
$strconfirmstartattempt = '';
if ($unfinished) {
$buttontext = get_string('continueattemptquiz', 'quiz');
} else {
if ($numattempts) {
$buttontext = get_string('reattemptquiz', 'quiz');
} else {
$buttontext = get_string('attemptquiznow', 'quiz');
}
if ($quiz->timelimit && $quiz->attempts) {
$strconfirmstartattempt = addslashes(get_string('confirmstartattempttimelimit','quiz', $quiz->attempts));
} else if ($quiz->timelimit) {
$strconfirmstartattempt = addslashes(get_string('confirmstarttimelimit','quiz'));
} else if ($quiz->attempts) {
$strconfirmstartattempt = addslashes(get_string('confirmstartattemptlimit','quiz', $quiz->attempts));
}
}
$buttontext = htmlspecialchars($buttontext, ENT_QUOTES);
if (!empty($quiz->popup)) {
$window = 'quizpopup';
$windowoptions = "left=0, top=0, height='+window.screen.height+', " .
"width='+window.screen.width+', channelmode=yes, fullscreen=yes, " .
"scrollbars=yes, resizeable=no, directories=no, toolbar=no, " .
"titlebar=no, location=no, status=no, menubar=no";
} else {
$window = '_self';
$windowoptions = '';
}
$attempturl = "attempt.php?id=$cm->id";
if (!empty($CFG->usesid) && !isset($_COOKIE[session_name()])) {
$attempturl = sid_process_url($attempturl);
}
?>
<script language="javascript" type="text/javascript">
<!--
document.write('<input type="button" value="<?php echo $buttontext ?>" onclick="javascript: <?php
if ($strconfirmstartattempt) {
echo "if (confirm(\\'".addslashes($strconfirmstartattempt)."\\'))";
}
?> window.open(\'<?php echo $attempturl ?>\', \'<?php echo $window ?>\', \'<?php echo $windowoptions ?>\'); " />');
// -->
</script>
<noscript>
<strong><?php print_string('noscript', 'quiz'); ?></strong>
</noscript>
<?php
}
?>
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