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assessments.php
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assessments.php
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<?php // $Id: lib.php,v 1.1 22 Aug 2003
/*************************************************
ACTIONS handled are:
adminamendgradinggrading
adminconfirmdelete
admindelete
adminedit
adminlist
adminlistbystudent
assessresubmission
assesssubmission
displaygradingform
editelements (teachers only)
insertelements (for teachers)
listungradedstudentsubmissions (for teachers)
listungradedstudentassessments (for teachers)
listteachersubmissions
regradestudentassessments (for teachers)
teacherassessment (for teachers)
teachertable
updateassessment
updateteacherassessment
userconfirmdelete
userdelete
viewassessment
************************************************/
require_once("../../config.php");
require_once("lib.php");
require_once("locallib.php");
$id = required_param('id', PARAM_INT); // Course Module ID
// get some esential stuff...
if (! $cm = get_coursemodule_from_id('exercise', $id)) {
error("Course Module ID was incorrect");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("Course is misconfigured");
}
if (! $exercise = get_record("exercise", "id", $cm->instance)) {
error("Course module is incorrect");
}
exercise_add_custom_scales($exercise);
require_login($course->id, false, $cm);
$strexercises = get_string("modulenameplural", "exercise");
$strexercise = get_string("modulename", "exercise");
$strassessments = get_string("assessments", "exercise");
// ... print the header and...
print_header_simple(format_string($exercise->name), "",
"<a href=\"index.php?id=$course->id\">$strexercises</a> ->
<a href=\"view.php?id=$cm->id\">".format_string($exercise->name,true)."</a> -> $strassessments",
"", "", true);
//...get the action
$action = required_param('action');
/******************* admin amend Grading Grade ************************************/
if ($action == 'adminamendgradinggrade' ) {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
if (empty($_GET['aid'])) {
error("Admin Amend Grading grade: assessment id missing");
}
if (!$assessment = get_record("exercise_assessments", "id", $_GET['aid'])) {
error("Amin Amend Grading grade: assessment not found");
}
print_heading(get_string("amend", "exercise")." ".get_string("gradeforstudentsassessment",
"exercise", $course->student));
echo "<form name=\"amendgrade\" method=\"post\" action=\"assessments.php\">\n";
echo "<input type=\"hidden\" name=\"aid\" value=\"$_GET[aid]\" />\n";
echo "<input type=\"hidden\" name=\"action\" value=\"updategradinggrade\" />\n";
echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />\n";
echo "<table width=\"50%\" align=\"center\" border=\"1\" />\n";
echo "<tr><td align=\"right\"><b>".get_string("gradeforstudentsassessment", "exercise",
$course->student)." :</td><td>\n";
// set up coment scale
for ($i=$exercise->gradinggrade; $i>=0; $i--) {
$num[$i] = $i;
}
choose_from_menu($num, "gradinggrade",
number_format($exercise->gradinggrade * $assessment->gradinggrade / 100, 0), "");
echo "</td></tr>\n";
echo "<tr><td colspan=\"2\" align=\"center\">";
echo "<input type=\"submit\" value=\"".get_string("amend", "exercise")."\" />\n";
echo "</td></tr>\n";
echo "</table>\n";
echo "</center>";
echo "</form>\n";
}
/******************* admin confirm delete ************************************/
elseif ($action == 'adminconfirmdelete' ) {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
if (empty($_GET['aid'])) {
error("Admin confirm delete: assessment id missing");
}
notice_yesno(get_string("confirmdeletionofthisitem","exercise", get_string("assessment", "exercise")),
"assessments.php?action=admindelete&id=$cm->id&aid=$_GET[aid]",
"submissions.php?action=adminlist&id=$cm->id");
}
/******************* admin delete ************************************/
elseif ($action == 'admindelete' ) {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
if (empty($_GET['aid'])) {
error("Admin delete: submission id missing");
}
print_string("deleting", "exercise");
// first delete all the associated records...
delete_records("exercise_grades", "assessmentid", $_GET['aid']);
// ...now delete the assessment...
delete_records("exercise_assessments", "id", $_GET['aid']);
print_continue("submissions.php?id=$cm->id&action=adminlist");
}
/*********************** admin list of asssessments (of a submission) (by teachers)**************/
elseif ($action == 'adminlist') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
if (empty($_GET['sid'])) {
error ("exercise asssessments: adminlist called with no sid");
}
$submission = get_record("exercise_submissions", "id", $_GET['sid']);
exercise_print_assessments_for_admin($exercise, $submission);
print_continue("submissions.php?action=adminlist&id=$cm->id");
}
/****************** admin list of asssessments by a student (used by teachers only )******************/
elseif ($action == 'adminlistbystudent') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
if (empty($_GET['userid'])) {
error ("exercise asssessments: adminlistbystudent called with no userid");
}
$user = get_record("user", "id", $_GET['userid']);
exercise_print_assessments_by_user_for_admin($exercise, $user);
print_continue("submissions.php?action=adminlist&id=$cm->id");
}
/****************** Assess resubmission (by teacher) ***************************/
elseif ($action == 'assessresubmission') {
$sid = required_param('sid');
if (! $submission = get_record("exercise_submissions", "id", $sid)) {
error("Assess submission is misconfigured - no submission record!");
}
if (!$submissionowner = get_record("user", "id", $submission->userid)) {
error("Assess resubmission: user record not found");
}
// there can be an assessment record, if there isn't...
if (!$assessment = exercise_get_submission_assessment($submission, $USER)) {
if (!$submissions = exercise_get_user_submissions($exercise, $submissionowner)) {
error("Assess resubmission: submission records not found");
}
$lastone= '';
// just the last but one submission
foreach ($submissions as $submission) {
$prevsubmission = $lastone;
$lastone = $submission;
}
// get the teacher's assessment of the student's previous submission
if (!$prevassessment = exercise_get_submission_assessment($prevsubmission, $USER)) {
error("Assess resubmission: Previous assessment record not found");
}
// copy this assessment with comments...
$assessment = exercise_copy_assessment($prevassessment, $submission, true);
}
print_heading(get_string("thisisaresubmission", "exercise",
fullname($submissionowner)));
// show assessment and allow changes
exercise_print_assessment_form($exercise, $assessment, true, $_SERVER["HTTP_REFERER"]);
}
/****************** Assess submission (by teacher or student) ***************************/
elseif ($action == 'assesssubmission') {
$sid = required_param('sid');
if (! $submission = get_record("exercise_submissions", "id", $sid)) {
error("Assess submission is misconfigured - no submission record!");
}
// there can be an assessment record (for teacher submissions), if there isn't...
if (!$assessment = exercise_get_submission_assessment($submission, $USER)) {
$yearfromnow = time() + 365 * 86400;
// ...create one and set timecreated way in the future, this is reset when record is updated
$assessment->exerciseid = $exercise->id;
$assessment->submissionid = $submission->id;
$assessment->userid = $USER->id;
$assessment->grade = -1; // set impossible grade
$assessment->timecreated = $yearfromnow;
$assessment->timegraded = 0;
if (!$assessment->id = insert_record("exercise_assessments", $assessment)) {
error("Could not insert exercise assessment!");
}
}
// show assessment and allow changes
exercise_print_assessment_form($exercise, $assessment, true, $_SERVER["HTTP_REFERER"]);
}
/****************** display grading form (viewed by student) *********************************/
elseif ($action == 'displaygradingform') {
print_heading_with_help(get_string("specimenassessmentform", "exercise"), "specimen", "exercise");
exercise_print_assessment_form($exercise); // called with no assessment
print_continue("view.php?id=$cm->id");
}
/****************** edit assessment elements (for teachers) ***********************/
elseif ($action == 'editelements') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
$count = count_records("exercise_grades", "exerciseid", $exercise->id);
if ($exercise->phase > 1 and $count) {
notify(get_string("warningonamendingelements", "exercise"));
}
// set up heading, form and table
print_heading_with_help(get_string("editingassessmentelements", "exercise"), "elements", "exercise");
?>
<form name="form" method="post" action="assessments.php">
<input type="hidden" name="id" value="<?php echo $cm->id ?>" />
<input type="hidden" name="action" value="insertelements" />
<center><table cellpadding="5" border="1">
<?php
// get existing elements, if none set up appropriate default ones
if ($elementsraw = get_records("exercise_elements", "exerciseid", $exercise->id, "elementno ASC" )) {
foreach ($elementsraw as $element) {
$elements[] = $element; // to renumber index 0,1,2...
}
}
// check for missing elements (this happens either the first time round or when the number
// of elements is icreased)
for ($i=0; $i<$exercise->nelements; $i++) {
if (!isset($elements[$i])) {
$elements[$i]->description = '';
$elements[$i]->scale =0;
$elements[$i]->maxscore = 0;
$elements[$i]->weight = 11;
}
}
switch ($exercise->gradingstrategy) {
case 0: // no grading
for ($i=0; $i<$exercise->nelements; $i++) {
$iplus1 = $i+1;
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("element","exercise")." $iplus1:</b></td>\n";
echo "<td><textarea name=\"description[]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$elements[$i]->description."</textarea>\n";
echo " </td></tr>\n";
echo "<tr valign=\"top\">\n";
echo " <td colspan=\"2\"> </td>\n";
echo "</tr>\n";
}
break;
case 1: // accumulative grading
// set up scales name
foreach ($EXERCISE_SCALES as $KEY => $SCALE) {
$SCALES[] = $SCALE['name'];
}
for ($i=0; $i<$exercise->nelements; $i++) {
$iplus1 = $i+1;
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("element","exercise")." $iplus1:</b></td>\n";
echo "<td><textarea name=\"description[]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$elements[$i]->description."</textarea>\n";
echo " </td></tr>\n";
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("typeofscale", "exercise"). ":</b></p></td>\n";
echo "<td valign=\"top\">\n";
choose_from_menu($SCALES, "scale[]", $elements[$i]->scale, "");
if ($elements[$i]->weight == '') { // not set
$elements[$i]->weight = 11; // unity
}
echo "</tr>\n";
echo "<tr valign=\"top\"><td align=\"right\"><b>".get_string("elementweight", "exercise").
":</b></td><td>\n";
exercise_choose_from_menu($EXERCISE_EWEIGHTS, "weight[]", $elements[$i]->weight, "");
echo " </td>\n";
echo "</tr>\n";
echo "<tr valign=\"top\">\n";
echo " <td colspan=\"2\"> </td>\n";
echo "</tr>\n";
}
break;
case 2: // error banded grading
for ($i=0; $i<$exercise->nelements; $i++) {
$iplus1 = $i+1;
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("element","exercise")." $iplus1:</b></td>\n";
echo "<td><textarea name=\"description[$i]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$elements[$i]->description."</textarea>\n";
echo " </td></tr>\n";
if ($elements[$i]->weight == '') { // not set
$elements[$i]->weight = 11; // unity
}
echo "</tr>\n";
echo "<tr valign=\"top\"><td align=\"right\"><b>".get_string("elementweight", "exercise").
":</b></td><td>\n";
exercise_choose_from_menu($EXERCISE_EWEIGHTS, "weight[]", $elements[$i]->weight, "");
echo " </td>\n";
echo "</tr>\n";
echo "<tr valign=\"top\">\n";
echo " <td colspan=\"2\"> </td>\n";
echo "</tr>\n";
}
echo "</center></table><br />\n";
echo "<p><center><b>".get_string("gradetable","exercise")."</b></center>\n";
echo "<center><table cellpadding=\"5\" border=\"1\"><tr><td align=\"CENTER\">".
get_string("numberofnegativeresponses", "exercise");
echo "</td><td>". get_string("suggestedgrade", "exercise")."</td></tr>\n";
for ($j = $exercise->grade; $j >= 0; $j--) {
$numbers[$j] = $j;
}
for ($i=0; $i<=$exercise->nelements; $i++) {
echo "<tr><td align=\"CENTER\">$i</td><td align=\"CENTER\">";
if (!isset($elements[$i])) { // the "last one" will be!
$elements[$i]->description = "";
$elements[$i]->maxscore = 0;
}
choose_from_menu($numbers, "maxscore[$i]", $elements[$i]->maxscore, "");
echo "</td></tr>\n";
}
break;
case 3: // criterion grading
for ($j = $exercise->grade; $j >= 0; $j--) {
$numbers[$j] = $j;
}
for ($i=0; $i<$exercise->nelements; $i++) {
$iplus1 = $i+1;
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("criterion","exercise")." $iplus1:</b></td>\n";
echo "<td><textarea name=\"description[$i]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$elements[$i]->description."</textarea>\n";
echo " </td></tr>\n";
echo "<tr><td><b>". get_string("suggestedgrade", "exercise").":</b></td><td>\n";
choose_from_menu($numbers, "maxscore[$i]", $elements[$i]->maxscore, "");
echo "</td></tr>\n";
echo "<tr valign=\"top\">\n";
echo " <td colspan=\"2\"> </td>\n";
echo "</tr>\n";
}
break;
case 4: // rubric
for ($j = 100; $j >= 0; $j--) {
$numbers[$j] = $j;
}
if ($rubricsraw = get_records("exercise_rubrics", "exerciseid", $exercise->id)) {
foreach ($rubricsraw as $rubric) {
$rubrics[$rubric->elementno][$rubric->rubricno] = $rubric->description; // reindex 0,1,2...
}
}
for ($i=0; $i<$exercise->nelements; $i++) {
$iplus1 = $i+1;
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("element","exercise")." $iplus1:</b></td>\n";
echo "<td><textarea name=\"description[$i]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$elements[$i]->description."</textarea>\n";
echo " </td></tr>\n";
echo "<tr valign=\"top\"><td align=\"right\"><b>".get_string("elementweight", "exercise").
":</b></td><td>\n";
exercise_choose_from_menu($EXERCISE_EWEIGHTS, "weight[]", $elements[$i]->weight, "");
echo " </td>\n";
echo "</tr>\n";
for ($j=0; $j<5; $j++) {
$jplus1 = $j+1;
if (empty($rubrics[$i][$j])) {
$rubrics[$i][$j] = "";
}
echo "<tr valign=\"top\">\n";
echo " <td align=\"right\"><p><b>". get_string("grade")." $j:</b></td>\n";
echo "<td><textarea name=\"rubric[$i][$j]\" rows=\"3\" cols=\"75\" wrap=\"virtual\">".
$rubrics[$i][$j]."</textarea>\n";
echo " </td></tr>\n";
}
echo "<tr valign=\"top\">\n";
echo " <td colspan=\"2\"> </td>\n";
echo "</tr>\n";
}
break;
}
// close table and form
?>
</table><br />
<input type="submit" value="<?php print_string("savechanges") ?>" />
<input type="submit" name="cancel" value="<?php print_string("cancel") ?>" />
</center>
</form>
<?php
}
/****************** insert/update assignment elements (for teachers)***********************/
elseif ($action == 'insertelements') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
$form = data_submitted();
// let's not fool around here, dump the junk!
delete_records("exercise_elements", "exerciseid", $exercise->id);
// determine wich type of grading
switch ($exercise->gradingstrategy) {
case 0: // no grading
// Insert all the elements that contain something
foreach ($form->description as $key => $description) {
if ($description) {
unset($element);
$element->description = $description;
$element->exerciseid = $exercise->id;
$element->elementno = $key;
if (!$element->id = insert_record("exercise_elements", $element)) {
error("Could not insert exercise element!");
}
}
}
break;
case 1: // accumulative grading
// Insert all the elements that contain something
foreach ($form->description as $key => $description) {
if ($description) {
unset($element);
$element->description = $description;
$element->exerciseid = $exercise->id;
$element->elementno = $key;
if (isset($form->scale[$key])) {
$element->scale = $form->scale[$key];
switch ($EXERCISE_SCALES[$form->scale[$key]]['type']) {
case 'radio' : $element->maxscore = $EXERCISE_SCALES[$form->scale[$key]]['size'] - 1;
break;
case 'selection' : $element->maxscore = $EXERCISE_SCALES[$form->scale[$key]]['size'];
break;
}
}
if (isset($form->weight[$key])) {
$element->weight = $form->weight[$key];
}
if (!$element->id = insert_record("exercise_elements", $element)) {
error("Could not insert exercise element!");
}
}
}
break;
case 2: // error banded grading...
case 3: // ...and criterion grading
// Insert all the elements that contain something, the number of descriptions is
// one less than the number of grades
foreach ($form->maxscore as $key => $themaxscore) {
unset($element);
$element->exerciseid = $exercise->id;
$element->elementno = $key;
$element->maxscore = $themaxscore;
if (isset($form->description[$key])) {
$element->description = $form->description[$key];
}
if (isset($form->weight[$key])) {
$element->weight = $form->weight[$key];
}
if (!$element->id = insert_record("exercise_elements", $element)) {
error("Could not insert exercise element!");
}
}
break;
case 4: // ...and criteria grading
// Insert all the elements that contain something
foreach ($form->description as $key => $description) {
unset($element);
$element->exerciseid = $exercise->id;
$element->elementno = $key;
$element->description = $description;
$element->weight = $form->weight[$key];
for ($j=0;$j<5;$j++) {
if (empty($form->rubric[$key][$j]))
break;
}
$element->maxscore = $j - 1;
if (!$element->id = insert_record("exercise_elements", $element)) {
error("Could not insert exercise element!");
}
}
// let's not fool around here, dump the junk!
delete_records("exercise_rubrics", "exerciseid", $exercise->id);
for ($i=0;$i<$exercise->nelements;$i++) {
for ($j=0;$j<5;$j++) {
unset($element);
if (empty($form->rubric[$i][$j])) { // OK to have an element with fewer than 5 items
break;
}
$element->exerciseid = $exercise->id;
$element->elementno = $i;
$element->rubricno = $j;
$element->description = $form->rubric[$i][$j];
if (!$element->id = insert_record("exercise_rubrics", $element)) {
error("Could not insert exercise element!");
}
}
}
break;
} // end of switch
redirect("view.php?id=$cm->id", get_string("savedok", "exercise"));
}
/****************** list assessments for grading (Student submissions)(by teachers)*********************/
elseif ($action == 'listungradedstudentsubmissions') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
exercise_list_ungraded_assessments($exercise, "student");
print_continue("view.php?id=$cm->id");
}
/***************** list assessments for grading student assessments ( linked to the
******************Teacher's submissions) (by teachers)****/
elseif ($action == 'listungradedstudentassessments') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
exercise_list_ungraded_assessments($exercise, "teacher");
print_continue("view.php?id=$cm->id");
}
/****************** list teacher submissions ***********************/
elseif ($action == 'listteachersubmissions') {
exercise_list_teacher_submissions($exercise, $USER);
print_continue("view.php?id=$cm->id");
}
/******************* regrade student assessments ************************************/
elseif ($action == 'regradestudentassessments' ) {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
// get all the student assessments
if ($assessments = exercise_get_teacher_submission_assessments($exercise)) {
foreach ($assessments as $studentassessment) {
if ($studentassessment->timegraded > 0) {
if (!$submissions = get_records_select("exercise_submissions",
"userid = $studentassessment->userid AND exerciseid = $exercise->id", "timecreated ASC")) {
error("Regrade student assessments: student submission not found");
}
foreach ($submissions as $submission) { // only the first one is relavant
if (!$teacherassessments = get_records("exercise_assessments", "submissionid",
$submission->id, "timecreated ASC")) {
error("Regrade student assessments: teacher assessment(s) not found");
}
foreach ($teacherassessments as $teacherassessment) { // only the first one is relavent
$newgrade = exercise_compare_assessments($exercise, $studentassessment, $teacherassessment);
set_field("exercise_assessments", "gradinggrade", $newgrade, "id", $studentassessment->id);
break;
}
break;
}
}
}
}
redirect("submissions.php?id=$cm->id&action=adminlist");
}
/****************** teacher assessment : grading of assessment and submission (from student) ************/
elseif ($action == 'teacherassessment') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
$aid = required_param('aid', PARAM_INT);
$sid = required_param('sid', PARAM_INT);
if (!$assessment = get_record("exercise_assessments", "id", $aid)) {
error("Teacher assessment: User's assessment record not found");
}
if (!$submission = get_record("exercise_submissions", "id", $sid)) {
error("Teacher assessment: User's submission record not found");
}
exercise_print_teacher_assessment_form($exercise, $assessment, $submission, $_SERVER["HTTP_REFERER"]);
}
/****************** teacher table : show assessments by exercise and teacher ************/
elseif ($action == 'teachertable') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
exercise_print_teacher_table($course);
print_continue("index.php?id=$course->id");
}
/****************** update assessment (by teacher or student) ***************************/
elseif ($action == 'updateassessment') {
$timenow = time();
$form = data_submitted();
$aid = required_param('aid', PARAM_INT);
if (! $assessment = get_record("exercise_assessments", "id", $aid)) {
error("exercise assessment is misconfigured");
}
// first get the assignment elements for maxscores and weights...
if (!$elementsraw = get_records("exercise_elements", "exerciseid", $exercise->id, "elementno ASC")) {
print_string("noteonassignmentelements", "exercise");
}
else {
foreach ($elementsraw as $element) {
$elements[] = $element; // to renumber index 0,1,2...
}
}
// don't fiddle about, delete all the old and then add the new!
delete_records("exercise_grades", "assessmentid", $assessment->id);
//determine what kind of grading we have
switch ($exercise->gradingstrategy) {
case 0: // no grading
// Insert all the elements that contain something
foreach ($form->feedback as $key => $thefeedback) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $key;
$element->feedback = $thefeedback;
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
}
$grade = 0; // set to satisfy save to db
break;
case 1: // accumulative grading
// Insert all the elements that contain something
foreach ($form->grade as $key => $thegrade) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $key;
$element->feedback = $form->feedback[$key];
$element->grade = $thegrade;
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
}
// now work out the grade...
$rawgrade=0;
$totalweight=0;
foreach ($form->grade as $key => $grade) {
$maxscore = $elements[$key]->maxscore;
$weight = $EXERCISE_EWEIGHTS[$elements[$key]->weight];
if ($weight > 0) {
$totalweight += $weight;
}
$rawgrade += ($grade / $maxscore) * $weight;
// echo "\$key, \$maxscore, \$weight, \$totalweight, \$grade, \$rawgrade : $key, $maxscore, $weight, $totalweight, $grade, $rawgrade<br />";
}
$grade = 100.0 * ($rawgrade / $totalweight);
break;
case 2: // error banded graded
// Insert all the elements that contain something
$error = 0.0;
for ($i =0; $i < $exercise->nelements; $i++) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $i;
$element->feedback = $form->feedback[$i];
$element->grade = $form->grade[$i];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
if (empty($form->grade[$i])){
$error += $EXERCISE_EWEIGHTS[$elements[$i]->weight];
}
}
// now save the adjustment
unset($element);
$i = $exercise->nelements;
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $i;
$element->grade = $form->grade[$i];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
$grade = ($elements[intval($error + 0.5)]->maxscore + $form->grade[$i])
* 100.0 / $exercise->grade;
// echo "<p><b>".get_string("weightederrorcount", "exercise", intval($error + 0.5)).
// " ".get_string("adjustment", "exercise").": ".$form->grade[$i]."</b>\n";
// check the grade for sanity!
if ($grade > 100.0) {
$grade = 100.0;
}
if ($grade < 0.0) {
$grade = 0.0;
}
break;
case 3: // criteria grading
// save in the selected criteria value in element zero,
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = 0;
$element->grade = $form->grade[0];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
// now save the adjustment in element one
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = 1;
$element->grade = $form->grade[1];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
$grade = ($elements[$form->grade[0]]->maxscore + $form->grade[1]) * 100 / $exercise->grade;
// check the grade for sanity!
if ($grade >100.0) {
$grade = 100.0;
}
if ($grade < 0.0) {
$grade = 0.0;
}
break;
case 4: // rubric grading (identical to accumulative grading)
// Insert all the elements that contain something
foreach ($form->grade as $key => $thegrade) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $key;
$element->feedback = $form->feedback[$key];
$element->grade = $thegrade;
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
}
// now work out the grade...
$rawgrade=0;
$totalweight=0;
foreach ($form->grade as $key => $grade) {
$maxscore = $elements[$key]->maxscore;
$weight = $EXERCISE_EWEIGHTS[$elements[$key]->weight];
if ($weight > 0) {
$totalweight += $weight;
}
$rawgrade += ($grade / $maxscore) * $weight;
}
$grade = 100.0 * ($rawgrade / $totalweight);
break;
} // end of switch
// update the time of the assessment record (may be re-edited)...
set_field("exercise_assessments", "timecreated", $timenow, "id", $assessment->id);
set_field("exercise_assessments", "grade", $grade, "id", $assessment->id);
// ...and clear any grading of this assessment (these assessments are never graded but...)
set_field("exercise_assessments", "timegraded", 0, "id", $assessment->id);
set_field("exercise_assessments", "gradinggrade", 0, "id", $assessment->id);
// any comment?
if (!empty($form->generalcomment)) {
set_field("exercise_assessments", "generalcomment", $form->generalcomment, "id", $assessment->id);
}
// is user allowed to resubmit?
if (isteacher($course->id)) {
if (!$submission = get_record("exercise_submissions", "id", $assessment->submissionid)) {
error ("Updateassessment: submission record not found");
}
if ($form->resubmit == 1) {
set_field("exercise_submissions", "resubmit", 1, "id", $submission->id);
}
else {
// clear resubmit flag
set_field("exercise_submissions", "resubmit", 0, "id", $submission->id);
}
}
add_to_log($course->id, "exercise", "assess", "view.php?id=$cm->id", "$assessment->id");
// set up return address
if (!$returnto = $form->returnto) {
$returnto = "view.php?id=$cm->id";
}
// show grade if grading strategy is not zero
if ($exercise->gradingstrategy) {
redirect($returnto, "<p align=\"center\"><b>".get_string("thegradeis", "exercise").": ".
number_format($grade * $exercise->grade / 100.0, 1)." (".get_string("maximumgrade").
" ".number_format($exercise->grade).")</b></p>", 1);
}
else {
redirect($returnto);
}
}
/****************** update teacher assessment (by teacher only) ***************************/
elseif ($action == 'updateteacherassessment') {
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
$timenow = time();
$form = data_submitted();
// first do the (teacher's) assessment of the student's submission
if (! $submission = get_record("exercise_submissions", "id", $form->sid)) {
error("Update teacher assessment: student's submission record not found");
}
if (!$assessment = exercise_get_submission_assessment($submission, $USER)) {
error("Update teacher assessment: teacher's assessment record not found");
}
// first get the assignment elements for maxscores and weights...
if (!$elementsraw = get_records("exercise_elements", "exerciseid", $exercise->id, "elementno ASC")) {
print_string("noteonassignmentelements", "exercise");
}
else {
foreach ($elementsraw as $element) {
$elements[] = $element; // to renumber index 0,1,2...
}
}
// don't fiddle about, delete all the old and then add the new!
delete_records("exercise_grades", "assessmentid", $assessment->id);
//determine what kind of grading we have
switch ($exercise->gradingstrategy) {
case 0: // no grading
// Insert all the elements that contain something
foreach ($form->feedback as $key => $thefeedback) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $key;
$element->feedback = $thefeedback;
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
}
$grade = 0; // set to satisfy save to db
break;
case 1: // accumulative grading
// Insert all the elements that contain something
foreach ($form->grade as $key => $thegrade) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $key;
$element->feedback = $form->feedback[$key];
$element->grade = $thegrade;
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
}
// now work out the grade...
$rawgrade=0;
$totalweight=0;
foreach ($form->grade as $key => $grade) {
$maxscore = $elements[$key]->maxscore;
$weight = $EXERCISE_EWEIGHTS[$elements[$key]->weight];
if ($weight > 0) {
$totalweight += $weight;
}
$rawgrade += ($grade / $maxscore) * $weight;
// echo "\$key, \$maxscore, \$weight, \$totalweight, \$grade, \$rawgrade : $key, $maxscore, $weight, $totalweight, $grade, $rawgrade<br />";
}
$grade = 100.0 * ($rawgrade / $totalweight);
break;
case 2: // error banded graded
// Insert all the elements that contain something
$error = 0.0;
for ($i =0; $i < $exercise->nelements; $i++) {
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $i;
$element->feedback = $form->feedback[$i];
$element->grade = $form->grade[$i];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
if (empty($form->grade[$i])){
$error += $EXERCISE_EWEIGHTS[$elements[$i]->weight];
}
}
// now save the adjustment
unset($element);
$i = $exercise->nelements;
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = $i;
$element->grade = $form->grade[$i];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
$grade = ($elements[intval($error + 0.5)]->maxscore + $form->grade[$i]) * 100 / $exercise->grade;
echo "<p><b>".get_string("weightederrorcount", "exercise", intval($error + 0.5))."</b>\n";
break;
case 3: // criteria grading
// save in the selected criteria value in element zero,
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = 0;
$element->grade = $form->grade[0];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
// now save the adjustment in element one
unset($element);
$element->exerciseid = $exercise->id;
$element->assessmentid = $assessment->id;
$element->elementno = 1;
$element->grade = $form->grade[1];
if (!$element->id = insert_record("exercise_grades", $element)) {
error("Could not insert exercise element!");
}
$grade = ($elements[$form->grade[0]]->maxscore + $form->grade[1]) * 100 / $exercise->grade;
break;