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view.php
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view.php
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<?PHP // $Id$
/// This page prints a particular instance of lesson
/// (Replace lesson with the name of your module)
require_once('../../config.php');
require_once('locallib.php');
require_once('lib.php');
require_variable($id); // Course Module ID
optional_variable($pageid); // Lesson Page ID
if (! $cm = get_record('course_modules', 'id', $id)) {
error('Course Module ID was incorrect');
}
if (! $course = get_record('course', 'id', $cm->course)) {
error('Course is misconfigured');
}
if (! $lesson = get_record('lesson', 'id', $cm->instance)) {
error('Course module is incorrect');
}
require_login($course->id);
$SESSION->sesskey = !empty($USER->id) ? $USER->sesskey : '';
/// Print the page header
if ($course->category) {
$navigation = '<a href="../../course/view.php?id='. $course->id .'">'. $course->shortname .'</a> ->';
}
$strlessons = get_string('modulenameplural', 'lesson');
$strlesson = get_string('modulename', 'lesson');
/// CDC-FLAG moved the action up because I needed to know what the action will be before the header is printed
if (empty($action)) {
if (isteacher($course->id)) {
$action = 'teacherview';
} elseif (time() < $lesson->available) {
print_header($course->shortname .': '. $lesson->name, $course->fullname,
$navigation .'<a href="index.php?id='. $course->id .'">'. $strlessons .'</a> -> <a href="view.php?id='. $cm->id .'">'. $lesson->name .'</a>', '',
"<style type=\"text/css\">@import url($CFG->wwwroot/mod/lesson/styles.php);</style>", true,
'', navmenu($course, $cm));
print_simple_box_start('center');
echo '<div align="center">';
echo get_string('lessonopen', 'lesson', userdate($lesson->available)).'<br />';
echo '<a href="../../course/view.php?id='. $course->id .'">'. get_string('returnmainmenu', 'lesson') .'</a>';
echo '</div>';
print_simple_box_end();
print_footer($course);
exit();
} elseif (time() > $lesson->deadline) {
print_header($course->shortname .': '. $lesson->name, $course->fullname,
"$navigation <a href=\"index.php?id=$course->id\">$strlessons</a> -> <a href=\"view.php?id=$cm->id\">$lesson->name</a>", '',
"<style type=\"text/css\">@import url($CFG->wwwroot/mod/lesson/styles.php);</style>", true,
'', navmenu($course, $cm));
print_simple_box_start('center');
echo '<div align="center">';
echo get_string('lessonclosed', 'lesson', userdate($lesson->deadline)) .'<br />';
echo '<a href="../../course/view.php?id='. $course->id. '">'. get_string('returnmainmenu', 'lesson') .'</a>';
echo '</div>';
print_simple_box_end();
print_footer($course);
exit();
} elseif ($lesson->highscores) {
$action = 'highscores';
} else {
$action = 'navigation';
}
}
/// CDC-FLAG changed the update_module_button and added another button when a teacher is checking the navigation of the lesson
if (isteacheredit($course->id)) {
$button = '<table><tr><td>';
$button .= '<form target="'. $CFG->framename .'" method="get" action="'. $CFG->wwwroot .'/course/mod.php">'.
'<input type="hidden" name="sesskey" value="'. $SESSION->sesskey .'" />'.
'<input type="hidden" name="update" value="'. $cm->id .'" />'.
'<input type="hidden" name="return" value="true" />'.
'<input type="submit" value="'. get_string('editlessonsettings', 'lesson') .'" /></form>';
if ($action == 'navigation' && $pageid != LESSON_EOL) {
$button .= '</td><td>'.
'<form target="'. $CFG->framename .'" method="get" action="'. $CFG->wwwroot .'/mod/lesson/lesson.php">'.
'<input type="hidden" name="id" value="'. $cm->id .'" />'.
'<input type="hidden" name="action" value="editpage" />'.
'<input type="hidden" name="pageid" value="'. $pageid .'" />'.
'<input type="submit" value="'. get_string('editpagecontent', 'lesson') .'" /></form>';
}
$button .= '</td></tr></table>';
} else {
$button = '';
}
print_header($course->shortname .': '. $lesson->name, $course->fullname,
"$navigation <a href=\"index.php?id=$course->id\">$strlessons</a> -> <a href=\"view.php?id=$cm->id\">$lesson->name</a>", '',
"<style type=\"text/css\">@import url($CFG->wwwroot/mod/lesson/styles.php);</style>", true,
$button, // took out update_module_button($cm->id, $course->id, $strlesson) and replaced it with $button
navmenu($course, $cm));
// set up some general variables
$usehtmleditor = can_use_html_editor();
$path = $CFG->wwwroot .'/course';
if (empty($THEME->custompix)) {
$pixpath = $path .'/../pix';
} else {
$pixpath = $path .'/../theme/'. $CFG->theme .'/pix';
}
/************** navigation **************************************/
if ($action == 'navigation') {
//CDC Chris Berri added this echo call for left menu. must match that in lesson.php for styles
if ($lesson->displayleft) {
echo '<div class="leftmenu">';
if($page = get_record_select('lesson_pages', 'lessonid = '. $lesson->id .' AND prevpageid = 0')) {
// print the pages
echo '<form name="lessonpages2" method="post" action="view.php">';
echo '<input type="hidden" name="id" value="'. $cm->id .'" />';
echo '<input type="hidden" name="action" value="navigation" />';
echo '<input type="hidden" name="pageid" />';
echo "<div class='lmlinks'><table bgcolor=\"$THEME->cellheading\"><tr></tr>";
echo "<tr><td class='lmheading'>".get_string('lessonmenu', 'lesson') .'</td></tr><br>';
echo "<tr><td class='lmMainlinks'>";
echo "<a href=\"../../course/view.php?id=$course->id\">".get_string("mainmenu", "lesson")."</a></td></tr>";
echo '<td>';
lesson_print_tree_menu($lesson->id, $page->id, $cm->id);
echo '</td></tr></table></div>'; //close lmlinks
echo '</form>';
}
echo '</div>'; //close left menu
echo "<div class='slidepos'>"; //CDC chris berri for styles
} elseif ($lesson->slideshow) {
echo '<table align="center"><tr><td>';
}
/// CDC-FLAG /// password protected lesson code
if ($lesson->usepassword && !isteacher($course->id)) {
$correctpass = false;
if (isset($_POST['userpassword'])) {
if ($lesson->password == md5(trim($_POST['userpassword']))) {
$USER->lessonloggedin[$lesson->id] = true;
$correctpass = true;
}
} elseif (isset($USER->lessonloggedin[$lesson->id])) {
$correctpass = true;
}
if (!$correctpass) {
print_simple_box_start('center');
echo '<form name="password" method="post" action="view.php">' . "\n";
echo '<input type="hidden" name="id" value="'. $cm->id .'" />' . "\n";
echo '<input type="hidden" name="action" value="navigation" />' . "\n";
echo '<table cellpadding="7px">';
if (isset($_POST['userpassword'])) {
echo "<tr align=\"center\" style='color:#DF041E;'><td>".get_string('loginfail', 'lesson') .'</td></tr>';
}
echo '<tr align="center"><td>'. get_string('passwordprotectedlesson', 'lesson', $lesson->name) .'</td></tr>';
echo '<tr align="center"><td>'. get_string('enterpassword', 'lesson').' <input type="password" name="userpassword" /></td></tr>';
echo '<tr align="center"><td>';
echo '<input type="button" value="'. get_string('cancel', 'lesson') .'" onclick="parent.location=\'../../course/view.php?id='. $course->id .'\';" /> ';
echo '<input type="button" value="'. get_string('continue', 'lesson') .'" onclick="document.password.submit();" />';
echo '</td></tr></table>';
print_simple_box_end();
exit();
}
}
/// CDC-FLAG /// Slideshow styles
if($lesson->slideshow) {
//echo "<div class=\"slidepos\">\n";//CDC Chris Berri. add the left menu theme stuff here. must match on lesson.php
echo "<div style=\"
background-color: $lesson->bgcolor;
height: ".$lesson->height."px;
width: ".$lesson->width."px;
overflow: auto;
border: 0px solid #ccc;
padding-right: 16px; /* for the benefit of macIE5 only */
/* \ commented backslash hack - recover from macIE5 workarounds, it will ignore the following rule */
padding-right: 0;
padding: 15px;
\">\n";
}
// this is called if a student leaves during a lesson
if($pageid == LESSON_UNSEENBRANCHPAGE) {
$pageid = lesson_unseen_question_jump($lesson->id, $USER->id, $pageid);
}
/// CDC-FLAG ///
/// CDC-FLAG /// 6/21/04 This is the warning msg for teachers to inform them that cluster and unseen does not work while logged in as a teacher
if(isteacher($course->id)) {
if (execute_teacherwarning($lesson->id)) {
$warningvars->cluster = get_string('clusterjump', 'lesson');
$warningvars->unseen = get_string('unseenpageinbranch', 'lesson');
echo '<div align="center"><table><tr><td align="center">'. get_string('teacherjumpwarning', 'lesson', $warningvars) .'</td></tr></table></div>';
}
}
/// CDC-FLAG ///
// display individual pages and their sets of answers
// if pageid is EOL then the end of the lesson has been reached
// for flow, changed to simple echo for flow styles, michaelp, moved lesson name and page title down
//print_heading($lesson->name);
if (empty($pageid)) {
add_to_log($course->id, 'lesson', 'start', 'view.php?id='. $cm->id, $lesson->id, $cm->id);
// if no pageid given see if the lesson has been started
if ($grades = get_records_select('lesson_grades', 'lessonid = '. $lesson->id .' AND userid = '. $USER->id,
'grade DESC')) {
$retries = count($grades);
} else {
$retries = 0;
}
if ($retries) {
print_heading(get_string('attempt', 'lesson', $retries + 1));
}
if (isset($USER->modattempts[$lesson->id])) {
unset($USER->modattempts[$lesson->id]); // if no pageid, then student is NOT reviewing
}
// if there are any questions have been answered correctly in this attempt
if ($attempts = get_records_select('lesson_attempts',
"lessonid = $lesson->id AND userid = $USER->id AND retry = $retries AND
correct = 1", 'timeseen DESC')) {
// get the first page
if (!$firstpageid = get_field('lesson_pages', 'id', 'lessonid', $lesson->id,
'prevpageid', 0)) {
error('Navigation: first page not found');
}
foreach ($attempts as $attempt) {
$jumpto = get_field('lesson_answers', 'jumpto', 'id', $attempt->answerid);
// convert the jumpto to a proper page id
if ($jumpto == 0) { // unlikely value!
$lastpageseen = $attempt->pageid;
} elseif ($jumpto == LESSON_NEXTPAGE) {
if (!$lastpageseen = get_field('lesson_pages', 'nextpageid', 'id',
$attempt->pageid)) {
// no nextpage go to end of lesson
$lastpageseen = LESSON_EOL;
}
} else {
$lastpageseen = $jumpto;
}
break; // only look at the latest correct attempt
}
//if ($lastpageseen != $firstpageid) {
if (count_records('lesson_attempts', 'lessonid', $lesson->id, 'userid', $USER->id, 'retry', $retries) > 0) {
/// CDC-FLAG ///
if ($lesson->timed) {
if ($lesson->retake) {
echo '<form name="queryform" method ="post" action="view.php">' . "\n";
echo '<input type="hidden" name="id" value="'. $cm->id .'" />' . "\n";
echo '<input type="hidden" name="action" value="navigation" />' . "\n";
echo '<input type="hidden" name="pageid" />' . "\n";
echo '<input type="hidden" name="startlastseen" />' . "\n"; /// CDC-FLAG added this line
print_simple_box('<p align="center">'. get_string('leftduringtimed', 'lesson') .'</p>', 'center');
echo '<p align="center"><input type="button" value="'. get_string('continue', 'lesson').
"\" onclick=\"document.queryform.pageid.value='$firstpageid';document.queryform.startlastseen.value='no';document.queryform.submit();\" /></p>\n"; /// CDC-FLAG added document.queryform.startlastseen.value='yes'
echo '</form>' . "\n";
echo '</div></div>';///CDC Chris Berri added close div tag
} else {
print_simple_box_start('center');
echo '<div align="center">';
echo get_string('leftduringtimednoretake', 'lesson');
echo '<br /><br /><a href="../../course/view.php?id='. $course->id .'">'. get_string('returntocourse', 'lesson') .'</a>';
echo '</div>';
print_simple_box_end();
}
} else {
echo "<form name=\"queryform\" method =\"post\" action=\"view.php\">\n";
echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />\n";
echo "<input type=\"hidden\" name=\"action\" value=\"navigation\" />\n";
echo "<input type=\"hidden\" name=\"pageid\" />\n";
echo "<input type=\"hidden\" name=\"startlastseen\" />\n"; /// CDC-FLAG added this line
print_simple_box("<p align=\"center\">".get_string('youhaveseen','lesson').'</p>',
"center");
echo "<p align=\"center\"><input type=\"button\" value=\"".get_string('yes').
"\" onclick=\"document.queryform.pageid.value='$lastpageseen';document.queryform.startlastseen.value='yes';document.queryform.submit();\" /> <input type=\"button\" value=\"".get_string("no"). /// CDC-FLAG 6/11/04 ///
"\" onclick=\"document.queryform.pageid.value='$firstpageid';document.queryform.startlastseen.value='no';document.queryform.submit();\" /></p>\n"; /// CDC-FLAG added document.queryform.startlastseen.value='yes'
echo "</form>\n"; echo "</div></div>";///CDC Chris Berri added close div tag
}
print_footer($course);
exit();
}
}
if ($grades) {
foreach ($grades as $grade) {
$bestgrade = $grade->grade;
break;
}
if (!$lesson->retake) {
print_simple_box_start('center');
echo "<div align=\"center\">";
echo get_string("noretake", "lesson");
echo "<br /><br /><a href=\"../../course/view.php?id=$course->id\">".get_string('returntocourse', 'lesson').'</a>';
echo "</div>";
print_simple_box_end();
print_footer($course);
exit();
//redirect("../../course/view.php?id=$course->id", get_string("alreadytaken", "lesson"));
// allow student to retake course even if they have the maximum grade
// } elseif ($bestgrade == 100) {
// redirect("../../course/view.php?id=$course->id", get_string("maximumgradeachieved",
// "lesson"));
}
}
// start at the first page
if (!$pageid = get_field('lesson_pages', 'id', 'lessonid', $lesson->id, 'prevpageid', 0)) {
error('Navigation: first page not found');
}
/// CDC-FLAG /// -- This is the code for starting a timed test
if($lesson->timed && !isset($USER->startlesson[$lesson->id])) {
unset($startlesson);
$USER->startlesson[$lesson->id] = true;
if($timeid = get_field('lesson_timer', 'id', 'lessonid', $lesson->id, 'userid', $USER->id)) {
$startlesson->id = $timeid;
}
$startlesson->lessonid = $lesson->id;
$startlesson->userid = $USER->id;
$startlesson->starttime = time();
$startlesson->lessontime = time();
if (!update_record('lesson_timer', $startlesson)) {
if (!insert_record('lesson_timer', $startlesson)) {
error('Error: could not insert row into lesson_timer table');
}
}
}
/// CDC-FLAG ///
}
if ($pageid != LESSON_EOL) {
/// CDC-FLAG /// 6/15/04 -- This is the code updates the lessontime for a timed test
// NoticeFix
if (isset($_POST['startlastseen'])) { /// this deletes old records
if ($_POST['startlastseen'] == 'no') {
if ($grades = get_records_select('lesson_grades', "lessonid = $lesson->id AND userid = $USER->id",
'grade DESC')) {
$retries = count($grades);
} else {
$retries = 0;
}
// NoticeFix big fix on the two delete_records
if (!delete_records('lesson_attempts', 'userid', $USER->id, 'lessonid', $lesson->id, 'retry', $retries)) {
error('Error: could not delete old attempts');
}
if (!delete_records('lesson_branch', 'userid', $USER->id, 'lessonid', $lesson->id, 'retry', $retries)) {
error('Error: could not delete old seen branches');
}
}
}
if($lesson->timed) {
if(isteacher($course->id)) {
echo '<div align="center"><table><tr><td align="center">'. get_string('teachertimerwarning', 'lesson') .'</td></tr></table></div>';
} else {
if (isset($_POST['startlastseen'])) {
if ($_POST['startlastseen'] == 'yes') { // continue a previous test, need to update the clock (think this option is disabled atm)
// get time information for this user
if (!$timer = get_record('lesson_timer', 'lessonid', $lesson->id, 'userid', $USER->id)) {
error('Error: could not find record');
}
unset($continuelesson);
$continuelesson->id = $timer->id;
$continuelesson->starttime = time() - ($timer->lessontime - $timer->starttime);
$continuelesson->lessontime = time();
if (!update_record('lesson_timer', $continuelesson)) {
error("Error: could not update record in the lesson_timer table");
}
} elseif ($_POST['startlastseen'] == 'no') { // starting over
// get time information for this user
if (!$timer = get_record('lesson_timer', 'lessonid', $lesson->id, 'userid', $USER->id)) {
error('Error: could not find record');
}
// starting over, so reset the clock
unset($startlesson);
$startlesson->id = $timer->id;
$startlesson->starttime = time();
$startlesson->lessontime = time();
if (!update_record('lesson_timer', $startlesson)) {
error('Error: could not update record in the lesson_timer table');
}
}
}
// get time information for this user
if (!$timer = get_record('lesson_timer', 'lessonid', $lesson->id, 'userid', $USER->id)) {
error('Error: could not find record');
}
if ((($timer->starttime + $lesson->maxtime * 60) - time()) > 0) {
// code for the clock
print_simple_box_start("right", "150px", "#ffffff", 0);
echo "<table border=\"0\" valign=\"top\" align=\"center\" class=\"generaltable\" width=\"100%\" cellspacing=\"0\">".
"<tr><th valign=\"top\" class=\"generaltableheader\">".get_string("timeremaining", "lesson").
"</th></tr><tr><td align=\"center\" class=\"generaltablecell\">";
echo "<script language=\"javascript\">\n";
echo "var starttime = ". $timer->starttime . ";\n";
echo "var servertime = ". time() . ";\n";
echo "var testlength = ". $lesson->maxtime * 60 .";\n";
echo "document.write('<SCRIPT LANGUAGE=\"JavaScript\" SRC=\"timer.js\"><\/SCRIPT>');\n";
echo "window.onload = function () { show_clock(); }\n";
echo "</script>\n";
echo "</td></tr></table>";
print_simple_box_end();
echo "<br /><br /><br /><br />";
} else {
redirect("view.php?id=$cm->id&action=navigation&pageid=".LESSON_EOL."&outoftime=normal", get_string("outoftime", "lesson"));
}
// update clock when viewing a new page... no special treatment
if ((($timer->starttime + $lesson->maxtime * 60) - time()) < 60) {
echo "<table align=\"center\"><tr><td align=\"center\">".get_string('studentoneminwarning', 'lesson').
'</td></tr></table>';
}
unset($newtime);
$newtime->id = $timer->id;
$newtime->lessontime = time();
if (!update_record('lesson_timer', $newtime)) {
error('Error: could not update lesson_timer table');
}
// I dont like this... seems like there should be a better way...
if (!$firstpageid = get_field('lesson_pages', 'id', 'lessonid', $lesson->id,
'prevpageid', 0)) {
error('Navigation: first page not found');
}
if ($pageid == $firstpageid && !isset($USER->modattempts[$lesson->id])) {
print_simple_box(get_string('maxtimewarning', 'lesson', $lesson->maxtime), 'center');
}
}
}
/// CDC-FLAG ///
add_to_log($course->id, 'lesson', 'view', 'view.php?id='. $cm->id, $pageid, $cm->id);
if (!$page = get_record('lesson_pages', 'id', $pageid)) {
error('Navigation: the page record not found');
}
/// CDC-FLAG 6/21/04 ///
if ($page->qtype == LESSON_CLUSTER) { //this only gets called when a user starts up a new lesson and the first page is a cluster page
if (!isteacher($course->id)) {
// get new id
$pageid = lesson_cluster_jump($lesson->id, $USER->id, $pageid);
// get new page info
if (!$page = get_record('lesson_pages', 'id', $pageid)) {
error('Navigation: the page record not found');
}
} else {
// get the next page
$pageid = $page->nextpageid;
if (!$page = get_record('lesson_pages', 'id', $pageid)) {
error('Navigation: the page record not found');
}
}
} elseif ($page->qtype == LESSON_ENDOFCLUSTER) {
if ($page->nextpageid == 0) {
$nextpageid = LESSON_EOL;
} else {
$nextpageid = $page->nextpageid;
}
redirect("view.php?id=$cm->id&action=navigation&pageid=$nextpageid", get_string('endofclustertitle', 'lesson'));
}
/// CDC-FLAG ///
// before we output everything check to see if the page is a EOB, if so jump directly
// to it's associated branch table
if ($page->qtype == LESSON_ENDOFBRANCH) {
if ($answers = get_records('lesson_answers', 'pageid', $page->id, 'id')) {
// print_heading(get_string('endofbranch', 'lesson'));
foreach ($answers as $answer) {
// just need the first answer
/// CDC-FLAG 6/21/04 ///
if ($answer->jumpto == LESSON_RANDOMBRANCH) {
$answer->jumpto = lesson_unseen_branch_jump($lesson->id, $USER->id);
} elseif ($answer->jumpto == LESSON_CLUSTERJUMP) {
if (!isteacher($course->id)) {
$answer->jumpto = lesson_cluster_jump($lesson->id, $USER->id, $pageid);
} else {
if ($page->nextpageid == 0) {
$answer->jumpto = LESSON_EOL;
} else {
$answer->jumpto = $page->nextpageid;
}
}
}
/// CDC-FLAG ///
redirect("view.php?id=$cm->id&action=navigation&pageid=$answer->jumpto",
get_string("endofbranch", "lesson"));
break;
}
print_footer($course);
exit();
} else {
error('Navigation: No answers on EOB');
}
}
/// CDC-FLAG 6/21/04 /// this calculates the ongoing score
if ($lesson->ongoing && !empty($pageid)) {
if (isteacher($course->id)) {
echo "<div align=\"center\">".get_string('teacherongoingwarning', 'lesson').'<br /></div>';
} else {
$ntries = count_records("lesson_grades", "lessonid", $lesson->id, "userid", $USER->id);
if (isset($USER->modattempts[$lesson->id])) {
$ntries--;
}
lesson_calculate_ongoing_score($lesson, $USER->id, $ntries);
}
}
/// CDC-FLAG ///
// it's not a EOB process it...
/// CDC-FLAG ///
if ($lesson->slideshow) {
echo "<table align=\"center\" width=\"100%\" border=\"0\"><tr><td>\n";
} else {
echo "<table align=\"center\" width=\"80%\" border=\"0\"><tr><td>\n";
}
/// CDC-FLAG ///
if ($page->qtype == LESSON_BRANCHTABLE) {
if ($lesson->minquestions and isstudent($course->id)) {
// tell student how many questions they have seen, how many are required and their grade
$ntries = count_records("lesson_grades", "lessonid", $lesson->id, "userid", $USER->id);
$nviewed = count_records("lesson_attempts", "lessonid", $lesson->id, "userid",
$USER->id, "retry", $ntries);
if ($nviewed) {
echo "<p align=\"center\">".get_string("numberofpagesviewed", "lesson", $nviewed).
"; (".get_string("youshouldview", "lesson", $lesson->minquestions).")<br />";
// count the number of distinct correct pages
if ($correctpages = get_records_select("lesson_attempts", "lessonid = $lesson->id
AND userid = $USER->id AND retry = $ntries AND correct = 1")) {
foreach ($correctpages as $correctpage) {
$temp[$correctpage->pageid] = 1;
}
$ncorrect = count($temp);
} else {
$nccorrect = 0;
}
if ($nviewed < $lesson->minquestions) {
$nviewed = $lesson->minquestions;
}
echo get_string("numberofcorrectanswers", "lesson", $ncorrect)."<br />\n";
$thegrade = intval(100 * $ncorrect / $nviewed);
echo get_string("yourcurrentgradeis", "lesson",
number_format($thegrade * $lesson->grade / 100, 1)).
" (".get_string("outof", "lesson", $lesson->grade).")</p>\n";
}
}
}
/// CDC-FLAG /// moved name and title down here for Flow style, michaelp
echo "<div align=\"center\">";
echo "<i><strong>";
echo ($lesson->name) . "</strong></i>";
if ($page->qtype == LESSON_BRANCHTABLE) {
echo ":<br>";
print_heading($page->title);
}
echo "<br><br></div>";
/// CDC-FLAG ///
if ($lesson->slideshow) {
echo "<table><tr><td>";
echo format_text($page->contents);
echo "</td></tr></table>";
} else {
print_simple_box(format_text($page->contents), 'center');
}
/// CDC-FLAG ///
echo "<br />\n";
// this is for modattempts option. Find the users previous answer to this page,
// and then display it below in answer processing
if (isset($USER->modattempts[$lesson->id])) {
$retries = count_records('lesson_grades', "lessonid", $lesson->id, "userid", $USER->id);
$retries--;
if (! $attempts = get_records_select("lesson_attempts", "lessonid = $lesson->id AND userid = $USER->id AND pageid = $page->id AND retry = $retries", "timeseen")) {
error("Previous attempt record could not be found!");
}
$attempt = end($attempts);
}
// get the answers in a set order, the id order
if ($answers = get_records("lesson_answers", "pageid", $page->id, "id")) {
echo "<form name=\"answerform\" method =\"post\" action=\"lesson.php\">";
echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />";
echo "<input type=\"hidden\" name=\"action\" value=\"continue\" />";
echo "<input type=\"hidden\" name=\"pageid\" value=\"$pageid\" />";
/// CDC-FLAG ///
if (!$lesson->slideshow || $page->qtype != 20) {
print_simple_box_start("center");
}
/// CDC-FLAG ///
echo '<table width="100%">';
switch ($page->qtype) {
case LESSON_SHORTANSWER :
case LESSON_NUMERICAL :
if (isset($USER->modattempts[$lesson->id])) {
$value = "value=\"$attempt->useranswer\"";
} else {
$value = "";
}
echo "<tr><td align=\"center\">".get_string("youranswer", "lesson").
": <label for=\"answer\" class=\"hidden-label\">Answer</label><input type=\"text\" id=\"answer\" name=\"answer\" size=\"50\" maxlength=\"200\" $value />\n"; //CDC hidden label added.
echo '</table>';
print_simple_box_end();
if (!$lesson->slideshow) {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleaseenteryouranswerinthebox", "lesson")."\" /></p>\n";
}
break;
case LESSON_TRUEFALSE :
shuffle($answers);
foreach ($answers as $answer) {
echo "<tr><td valign=\"top\">";
if (isset($USER->modattempts[$lesson->id]) && $answer->id == $attempt->answerid) {
$checked = "CHECKED";
} else {
$checked = "";
}
echo "<label for=\"answerid\" class=\"hidden-label\">Answer ID</label><input type=\"radio\" id=\"answerid\" name=\"answerid\" value=\"{$answer->id}\" $checked />"; //CDC hidden label added.
echo "</td><td>";
$options->para = false; // no <p></p>
echo format_text(trim($answer->answer), FORMAT_MOODLE, $options);
echo "</td></tr>";
if ($answer != end($answers)) {
echo "<tr><td><br></td></tr>";
}
}
echo '</table>';
print_simple_box_end();
if (!$lesson->slideshow) {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleasecheckoneanswer", "lesson")."\" /></p>\n";
}
break;
case LESSON_MULTICHOICE :
$i = 0;
shuffle($answers);
foreach ($answers as $answer) {
echo "<tr><td valign=\"top\">";
if ($page->qoption) {
$checked = "";
if (isset($USER->modattempts[$lesson->id])) {
$answerids = explode(",", $attempt->useranswer);
if (in_array($answer->id, $answerids)) {
$checked = "CHECKED";
} else {
$checked = "";
}
}
// more than one answer allowed
echo "<label for=\"answer[$i]\" class=\"hidden-label\">answer[$i]</label><input type=\"checkbox\" id=\"answer[$i]\" name=\"answer[$i]\" value=\"{$answer->id}\" $checked />"; //CDC hidden label added.
} else {
if (isset($USER->modattempts[$lesson->id]) && $answer->id == $attempt->answerid) {
$checked = "CHECKED";
} else {
$checked = "";
}
// only one answer allowed
echo "<label for=\"answerid\" class=\"hidden-label\">answer id</label><input type=\"radio\" id=\"answerid\" name=\"answerid\" value=\"{$answer->id}\" $checked />"; //CDC hidden label added.
}
echo "</td><td>";
$options->para = false; // no <p></p>
echo format_text(trim($answer->answer), FORMAT_MOODLE, $options);
echo "</td></tr>";
if ($answer != end($answers)) {
echo "<tr><td><br></td></tr>";
}
$i++;
}
echo '</table>';
print_simple_box_end();
/// CDC-FLAG ///
if (!$lesson->slideshow) {
if ($page->qoption) {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleasecheckoneormoreanswers", "lesson")."\" /></p>\n";
} else {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleasecheckoneanswer", "lesson")."\" /></p>\n";
}
}
/// CDC-FLAG ///
break;
/// CDC-FLAG /// 6/14/04 --- changed how matching works
case LESSON_MATCHING :
echo "<tr><td><table width=\"100%\">";
// don't suffle answers (could be an option??)
foreach ($answers as $answer) {
// get all the response
if ($answer->response != NULL) {
$responses[] = trim($answer->response);
}
}
shuffle($responses);
$responses = array_unique($responses);
if (isset($USER->modattempts[$lesson->id])) {
$useranswers = explode(",", $attempt->useranswer);
$t = 0;
}
foreach ($answers as $answer) {
if ($answer->response != NULL) {
echo "<tr><td align=\"right\">";
echo "<b>$answer->answer: </b></td><td valign=\"bottom\">";
echo "<label for=\"response[$answer->id]\" class=\"hidden-label\">response[$answer->id]</label><select id=\"response[$answer->id]\" name=\"response[$answer->id]\">"; //CDC hidden label added.
if (isset($USER->modattempts[$lesson->id])) {
$selected = trim($answers[$useranswers[$t]]->response);
echo "<option value=\"$selected\" selected=\"selected\">$selected</option>";
foreach ($responses as $response) {
if (trim($answers[$useranswers[$t]]->response) != $response) {
echo "<option value=\"$response\">$response</option>";
}
}
$t++;
} else {
echo "<option value=\"0\" selected=\"selected\">Choose...</option>";
foreach ($responses as $response) {
echo "<option value=\"$response\">$response</option>";
}
}
echo "</select>";
echo "</td></tr>";
if ($answer != end($answers)) {
echo "<tr><td><br></td></tr>";
}
}
}
echo '</table></table>';
print_simple_box_end();
if (!$lesson->slideshow) {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleasematchtheabovepairs", "lesson")."\" /></p>\n";
}
break;
/// CDC-FLAG ///
case LESSON_BRANCHTABLE :
echo "<tr><td><table width=\"100%\">";
echo "<input type=\"hidden\" name=\"jumpto\" />";
// don't suffle answers
/// CDC-FLAG ///
if(!$lesson->slideshow) {
foreach ($answers as $answer) {
echo "<tr><td align=\"center\">";
echo "<input type=\"button\" value=\"$answer->answer\"";
echo "onclick=\"document.answerform.jumpto.value=$answer->jumpto;document.answerform.submit();\" />";
echo "</td></tr>";
}
}
/// CDC-FLAG ///
echo '</table></table>';
print_simple_box_end();
break;
case LESSON_ESSAY :
if (isset($USER->modattempts[$lesson->id])) {
$essayinfo = unserialize($attempt->useranswer);
$value = $essayinfo->answer;
} else {
$value = "";
}
echo "<tr><td align=\"center\" valign=\"top\" nowrap>".get_string("youranswer", "lesson").":</td><td>".
"<label for=\"answer\" class=\"hidden-label\">Answer</label><textarea id=\"answer\" name=\"answer\" rows=\"15\" cols=\"60\">$value</textarea>\n"; //CDC hidden label added.
echo "</td></tr></table>";
print_simple_box_end();
if (!$lesson->slideshow) {
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("pleaseenteryouranswerinthebox", "lesson")."\" /></p>\n";
}
break;
}
/// CDC-FLAG ///
if (!$lesson->slideshow) {
echo "</form>\n";
}
/// CDC-FLAG ///
} else {
// a page without answers - find the next (logical) page
echo "<form name=\"pageform\" method =\"post\" action=\"view.php\">\n";
echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />\n";
echo "<input type=\"hidden\" name=\"action\" value=\"navigation\" />\n";
if ($lesson->nextpagedefault) {
// in Flash Card mode...
// ...first get number of retakes
$nretakes = count_records("lesson_grades", "lessonid", $lesson->id, "userid", $USER->id);
// ...then get the page ids (lessonid the 5th param is needed to make get_records play)
$allpages = get_records("lesson_pages", "lessonid", $lesson->id, "id", "id,lessonid");
shuffle ($allpages);
$found = false;
if ($lesson->nextpagedefault == LESSON_UNSEENPAGE) {
foreach ($allpages as $thispage) {
if (!count_records("lesson_attempts", "pageid", $thispage->id, "userid",
$USER->id, "retry", $nretakes)) {
$found = true;
break;
}
}
} elseif ($lesson->nextpagedefault == LESSON_UNANSWEREDPAGE) {
foreach ($allpages as $thispage) {
if (!count_records_select("lesson_attempts", "pageid = $thispage->id AND
userid = $USER->id AND correct = 1 AND retry = $nretakes")) {
$found = true;
break;
}
}
}
if ($found) {
$newpageid = $thispage->id;
if ($lesson->maxpages) {
// check number of pages viewed (in the lesson)
if (count_records("lesson_attempts", "lessonid", $lesson->id, "userid", $USER->id,
"retry", $nretakes) >= $lesson->maxpages) {
$newpageid = LESSON_EOL;
}
}
} else {
$newpageid = LESSON_EOL;
}
} else {
// in normal lesson mode...
if (!$newpageid = get_field("lesson_pages", "nextpageid", "id", $pageid)) {
// this is the last page - flag end of lesson
$newpageid = LESSON_EOL;
}
}
echo "<input type=\"hidden\" name=\"pageid\" value=\"$newpageid\" />\n";
echo "<p align=\"center\"><input type=\"submit\" name=\"continue\" value=\"".
get_string("continue", "lesson")."\" /></p>\n";
echo "</form>\n";
}
echo "</table>\n";
} else {
// end of lesson reached work out grade
/// CDC-FLAG ///
if ($lesson->timed && !isteacher($course->id)) {
unset($USER->startlesson[$lesson->id]); // take this variable out that I put in for timed tests
if (isset($_GET["outoftime"])) {
if ($_GET["outoftime"] == "normal") {
print_simple_box(get_string("eolstudentoutoftime", "lesson"), "center");
}
}
}
if (isset($USER->lessonloggedin[$lesson->id])) {
unset($USER->lessonloggedin[$lesson->id]);
}
add_to_log($course->id, "lesson", "end", "view.php?id=$cm->id", "$lesson->id", $cm->id);
print_heading(get_string("congratulations", "lesson"));
print_simple_box_start("center");
$ntries = count_records("lesson_grades", "lessonid", $lesson->id, "userid", $USER->id);
if (isset($USER->modattempts[$lesson->id])) {
$ntries--; // need to look at the old attempts :)
}
if (isstudent($course->id)) {
if ($nviewed = count_records("lesson_attempts", "lessonid", $lesson->id, "userid",
$USER->id, "retry", $ntries)) {
/// CDC-FLAG /// 6/11/04
if (!$lesson->custom) {
$ncorrect = 0;
if ($pagesanswered = get_records_select("lesson_attempts", "lessonid = $lesson->id AND
userid = $USER->id AND retry = $ntries order by timeseen")) {
foreach ($pagesanswered as $pageanswered) {
if (@!array_key_exists($pageanswered->pageid, $temp)) {
$temp[$pageanswered->pageid] = array($pageanswered->correct, 1);
} else {
if ($temp[$pageanswered->pageid][1] < $lesson->maxattempts) {
$n = $temp[$pageanswered->pageid][1] + 1;
$temp[$pageanswered->pageid] = array($pageanswered->correct, $n);
}
}
}
foreach ($temp as $value => $key) {
if ($key[0] == 1) {
$ncorrect += 1;
}
}
}
$nviewed = count($temp); // this counts number of Questions the user viewed
echo "<p align=\"center\">".get_string("numberofpagesviewed", "lesson", $nviewed).
"</p>\n";
if ($lesson->minquestions) {
if ($nviewed < $lesson->minquestions) {
// print a warning and set nviewed to minquestions
echo "<p align=\"center\">".get_string("youshouldview", "lesson",
$lesson->minquestions)." ".get_string("pages", "lesson")."</p>\n";
$nviewed = $lesson->minquestions;
}
}
echo "<p align=\"center\">".get_string("numberofcorrectanswers", "lesson", $ncorrect).
"</p>\n";
$thegrade = intval(100 * $ncorrect / $nviewed);
echo "<p align=\"center\">".get_string("gradeis", "lesson",
number_format($thegrade * $lesson->grade / 100, 1)).
" (".get_string("outof", "lesson", $lesson->grade).")</p>\n";
} else {
$score = 0;
$essayquestions = 0;
$essayquestionpoints = 0;
if ($useranswers = get_records_select("lesson_attempts", "lessonid = $lesson->id AND
userid = $USER->id AND retry = $ntries", "timeseen")) {
// group each try with its page
foreach ($useranswers as $useranswer) {
$attemptset[$useranswer->pageid][] = $useranswer;
}
$pageids = array_keys($attemptset);
$pageids = implode(",", $pageids);
// get only the pages and their answers that the user answered
$answeredpages = get_records_select("lesson_pages", "lessonid = $lesson->id AND id IN($pageids)");
$pageanswers = get_records_select("lesson_answers", "lessonid = $lesson->id AND pageid IN($pageids)");
foreach ($attemptset as $attempts) {
if(count($attempts) > $lesson->maxattempts) { // if there are more tries than the max that is allowed, grab the last "legal" attempt
$attempt = $attempts[$lesson->maxattempts - 1];
} else {
// else, user attempted the question less than the max, so grab the last one
$attempt = end($attempts);
}
// if essay question, handle it, otherwise add to score
if ($answeredpages[$attempt->pageid]->qtype == LESSON_ESSAY) {
$essayinfo = unserialize($attempt->useranswer);
$score += $essayinfo->score;
$essayquestions++;
$essayquestionpoints += $pageanswers[$attempt->answerid]->score;
} else {
$score += $pageanswers[$attempt->answerid]->score;
}
}
$bestscores = array();
// find the highest possible score per page
foreach ($pageanswers as $pageanswer) {
if(isset($bestscores[$pageanswer->pageid])) {
if ($bestscores[$pageanswer->pageid] < $pageanswer->score) {
$bestscores[$pageanswer->pageid] = $pageanswer->score;
}
} else {
$bestscores[$pageanswer->pageid] = $pageanswer->score;
}
}
$bestscore = array_sum($bestscores);
}
$thegrade = intval(100 * $score / $bestscore);
unset($a);
if ($essayquestions > 0) {
$a->score = $score;
$a->tempmaxgrade = $bestscore - $essayquestionpoints;
$a->essayquestions = $essayquestions;
$a->grade = $bestscore;
echo "<div align=\"center\">".get_string("displayscorewithessays", "lesson", $a)."</div>";
} else {
$a->score = $score;
$a->grade = $bestscore;
echo "<div align=\"center\">".get_string("displayscorewithoutessays", "lesson", $a)."</div>";
}
echo "<p align=\"center\">".get_string("gradeis", "lesson",
number_format($thegrade * $lesson->grade / 100, 1)).
" (".get_string("outof", "lesson", $lesson->grade).")</p>\n";
}
/// CDC-FLAG ///
$grade->lessonid = $lesson->id;
$grade->userid = $USER->id;
$grade->grade = $thegrade;
$grade->completed = time();
if (!$lesson->practice) {
if (isset($USER->modattempts[$lesson->id])) { // if reviewing, make sure update old grade record
if (!$grades = get_records_select("lesson_grades", "lessonid = $lesson->id and userid = $USER->id", "completed")) {
error("Could not find Grade Records");
}
$oldgrade = end($grades);
$grade->id = $oldgrade->id;
if (!$update = update_record("lesson_grades", $grade)) {
error("Navigation: grade not updated");
}
} else {
if (!$newgradeid = insert_record("lesson_grades", $grade)) {
error("Navigation: grade not inserted");
}
}
} else {
if (!delete_records("lesson_attempts", "lessonid", $lesson->id, "userid", $USER->id, "retry", $ntries)) {
error("Could not delete lesson attempts");
}
}
} else {
//print_string("noattemptrecordsfound", "lesson");
if ($lesson->timed) {
if (isset($_GET["outoftime"])) {