moodle/grade/report/grader/index.php

479 lines
17 KiB
PHP

<?php // $Id$
/// This creates and handles the whole grader report interface, sans header and footer
require_once($CFG->libdir.'/tablelib.php');
include_once($CFG->libdir.'/gradelib.php');
/// processing posted grades here
if ($data = data_submitted()) {
foreach ($data as $varname => $postedgrade) {
// clean posted values
$postedgrade = clean_param($postedgrade, PARAM_NUMBER);
$varname = clean_param($varname, PARAM_RAW);
// skip, not a grade
if (!strstr($varname, 'grade')) {
continue;
}
$gradeinfo = explode("_", $varname);
$grade = new object();
$grade->userid = clean_param($gradeinfo[1], PARAM_INT);
$gradeitemid = clean_param($gradeinfo[2], PARAM_INT);
$grade->rawgrade = $postedgrade;
// put into grades array
$grades[$gradeitemid][] = $grade;
}
}
// now we update the raw grade for each posted grades
if (!empty($grades)) {
foreach ($grades as $gradeitemid => $itemgrades) {
foreach ($itemgrades as $gradedata) {
$gradeitem = new grade_item(array('id'=>$gradeitemid), true);
$gradeitem->update_raw_grade($gradedata->userid, $gradedata->rawgrade);
}
}
}
// get the params
$courseid = required_param('id', PARAM_INT);
$context = get_context_instance(CONTEXT_COURSE, $courseid);
$page = optional_param('page', 0, PARAM_INT);
$sortitemid = optional_param('sortitemid', 0, PARAM_ALPHANUM); // sort by which grade item
$report = optional_param('report', 0, PARAM_ALPHANUM);
$action = optional_param('action', 0, PARAM_ALPHA);
$move = optional_param('move', 0, PARAM_INT);
$type = optional_param('type', 0, PARAM_ALPHA);
$target = optional_param('target', 0, PARAM_ALPHANUM);
// Get the user preferences
$perpage = get_user_preferences('grade_report_studentsperpage', $CFG->grade_report_studentsperpage); // number of users on a page
$decimals = get_user_preferences('grade_report_decimalpoints', $CFG->grade_report_decimalpoints); // decimals in grades
// Override perpage if set in URL
if ($perpageurl = optional_param('perpage', 0, PARAM_INT)) {
$perpage = $perpageurl;
}
// Prepare language strings
$strsortasc = get_string('sortasc', 'grades');
$strsortdesc = get_string('sortasc', 'grades');
// base url for sorting by first/last name
$baseurl = 'report.php?id='.$courseid.'&amp;report=grader&amp;page='.$page;
// base url for paging
$pbarurl = 'report.php?id='.$courseid.'&amp;report=grader&amp;';
// Grab the grade_tree for this course
$gtree = new grade_tree($courseid);
// setting the sort order, this depends on last state
// all this should be in the new table class that we might need to use
// for displaying grades
// already in not requesting sort, i.e. normal paging
if ($sortitemid) {
if (!isset($SESSION->gradeuserreport->sort)) {
$sortorder = $SESSION->gradeuserreport->sort = 'ASC';
} else {
// this is the first sort, i.e. by last name
if (!isset($SESSION->gradeuserreport->sortitemid)) {
$sortorder = $SESSION->gradeuserreport->sort = 'ASC';
} else if ($SESSION->gradeuserreport->sortitemid == $sortitemid) {
// same as last sort
if ($SESSION->gradeuserreport->sort == 'ASC') {
$sortorder = $SESSION->gradeuserreport->sort = 'DESC';
} else {
$sortorder = $SESSION->gradeuserreport->sort = 'ASC';
}
} else {
$sortorder = $SESSION->gradeuserreport->sort = 'ASC';
}
}
$SESSION->gradeuserreport->sortitemid = $sortitemid;
} else {
// not requesting sort, use last setting (for paging)
if (isset($SESSION->gradeuserreport->sortitemid)) {
$sortitemid = $SESSION->gradeuserreport->sortitemid;
}
if (isset($SESSION->gradeuserreport->sort)) {
$sortorder = $SESSION->gradeuserreport->sort;
} else {
$sortorder = 'ASC';
}
}
/// end of setting sort order code
// Perform actions on categories, items and grades
if (!empty($target) && !empty($action) && confirm_sesskey()) {
$element = $gtree->locate_element($target);
switch ($action) {
case 'edit':
break;
case 'delete':
if ($confirm == 1) { // Perform the deletion
//TODO: add proper delete support for grade items and categories
//$element['object']->delete();
// Print result message
} else { // Print confirmation dialog
$eid = $element['eid'];
$strdeletecheckfull = get_string('deletecheck', '', $element['object']->get_name());
$linkyes = "category.php?target=$eid&amp;action=delete&amp;confirm=1$gtree->commonvars";
$linkno = "category.php?$gtree->commonvars";
notice_yesno($strdeletecheckfull, $linkyes, $linkno);
}
break;
case 'hide':
// TODO Implement calendar for selection of a date to hide element until
$element['object']->set_hidden(1);
$gtree = new grade_tree($courseid);
break;
case 'show':
$element['object']->set_hidden(0);
$gtree = new grade_tree($courseid);
break;
case 'lock':
// TODO Implement calendar for selection of a date to lock element after
if (!$element['object']->set_locked(1)) {
debugging("Could not update the element's locked state!");
}
$gtree = new grade_tree($courseid);
break;
case 'unlock':
if (!$element['object']->set_locked(0)) {
debugging("Could not update the element's locked state!");
}
$gtree = new grade_tree($courseid);
break;
default:
break;
}
}
// first make sure we have all final grades
// TODO: check that no grade_item has needsupdate set
grade_update_final_grades($courseid);
// roles to be displaye in the gradebook
$gradebookroles = $CFG->gradebookroles;
/*
* pulls out the userids of the users to be display, and sort them
* the right outer join is needed because potentially, it is possible not
* to have the corresponding entry in grade_grades table for some users
* this is check for user roles because there could be some users with grades
* but not supposed to be displayed
*/
if (is_numeric($sortitemid)) {
$sql = "SELECT u.id, u.firstname, u.lastname
FROM {$CFG->prefix}grade_grades g RIGHT OUTER JOIN
{$CFG->prefix}user u ON (u.id = g.userid AND g.itemid = $sortitemid)
LEFT JOIN {$CFG->prefix}role_assignments ra ON u.id = ra.userid
WHERE ra.roleid in ($gradebookroles)
AND ra.contextid ".get_related_contexts_string($context)."
ORDER BY g.finalgrade $sortorder";
$users = get_records_sql($sql, $perpage * $page, $perpage);
} else {
// default sort
// get users sorted by lastname
$users = get_role_users(@implode(',', $CFG->gradebookroles), $context, false, 'u.id, u.firstname, u.lastname', 'u.'.$sortitemid .' '. $sortorder, false, $page * $perpage, $perpage);
}
/// count total records for paging
$countsql = "SELECT COUNT(DISTINCT u.id)
FROM {$CFG->prefix}grade_grades g RIGHT OUTER JOIN
{$CFG->prefix}user u ON (u.id = g.userid AND g.itemid = $sortitemid)
LEFT JOIN {$CFG->prefix}role_assignments ra ON u.id = ra.userid
WHERE ra.roleid in ($gradebookroles)
AND ra.contextid ".get_related_contexts_string($context);
$numusers = count_records_sql($countsql);
// print_object($users); // debug
if (empty($users)) {
$userselect = '';
$users = array();
} else {
$userselect = 'AND g.userid in ('.implode(',', array_keys($users)).')';
}
// phase 2 sql, we supply the userids in this query, and get all the grades
// pulls out all the grades, this does not need to worry about paging
$sql = "SELECT g.id, g.itemid, g.userid, g.finalgrade, g.hidden, g.locked, g.locktime, gt.feedback
FROM {$CFG->prefix}grade_items gi,
{$CFG->prefix}grade_grades g
LEFT JOIN {$CFG->prefix}grade_grades_text gt ON g.id = gt.gradeid
WHERE g.itemid = gi.id
AND gi.courseid = $courseid $userselect";
///print_object($grades); //debug
$finalgrades = array();
// needs to be formatted into an array for easy retrival
if ($grades = get_records_sql($sql)) {
foreach ($grades as $grade) {
$finalgrades[$grade->userid][$grade->itemid] = $grade;
}
}
/// With the users in an sorted array and grades fetched, we can not print the main html table
// 1. Fetch all top-level categories for this course, with all children preloaded, sorted by sortorder
// Fetch array of students enroled in this course
if (!$context = get_context_instance(CONTEXT_COURSE, $gtree->courseid)) {
return false;
}
//$users = get_role_users(@implode(',', $CFG->gradebookroles), $context);
if ($sortitemid === 'lastname') {
if ($sortorder == 'ASC') {
$lastarrow = print_arrow('up', $strsortasc, true);
} else {
$lastarrow = print_arrow('down', $strsortdesc, true);
}
} else {
$lastarrow = '';
}
if ($sortitemid === 'firstname') {
if ($sortorder == 'ASC') {
$firstarrow = print_arrow('up', $strsortasc, true);
} else {
$firstarrow = print_arrow('down', $strsortdesc, true);
}
} else {
$firstarrow = '';
}
/********* BEGIN OUTPUT *********/
print_heading('Grader Report');
// Add tabs
$currenttab = 'graderreport';
include('tabs.php');
print_paging_bar($numusers, $page, $perpage, $pbarurl);
$items = array();
// Prepare Table Headers
$headerhtml = '';
$numrows = count($gtree->levels);
foreach ($gtree->levels as $key=>$row) {
if ($key == 0) {
// do not diplay course grade category
// continue;
}
$headerhtml .= '<tr class="heading">';
if ($key == $numrows - 1) {
$headerhtml .= '<th class="user"><a href="'.$baseurl.'&amp;sortitemid=firstname">Firstname</a> '
. $firstarrow. '/ <a href="'.$baseurl.'&amp;sortitemid=lastname">Lastname </a>'. $lastarrow .'</th>';
} else {
$headerhtml .= '<td class="topleft">&nbsp;</td>';
}
foreach ($row as $element) {
$eid = $element['eid'];
$object = $element['object'];
$type = $element['type'];
if (!empty($element['colspan'])) {
$colspan = 'colspan="'.$element['colspan'].'"';
} else {
$colspan = '';
}
if (!empty($element['depth'])) {
$catlevel = ' catlevel'.$element['depth'];
} else {
$catlevel = '';
}
if ($type == 'filler' or $type == 'fillerfirst' or $type == 'fillerlast') {
$headerhtml .= '<td class="'.$type.$catlevel.'" '.$colspan.'>&nbsp;</td>';
} else if ($type == 'category') {
$headerhtml .= '<td class="category'.$catlevel.'" '.$colspan.'>'.$element['object']->get_name();
// Print icons
if ($USER->gradeediting) {
$headerhtml .= grade_get_icons($element, $gtree);
}
$headerhtml .= '</td>';
} else {
if ($element['object']->id == $sortitemid) {
if ($sortorder == 'ASC') {
$arrow = print_arrow('up', $strsortasc, true);
} else {
$arrow = print_arrow('down', $strsortdesc, true);
}
} else {
$arrow = '';
}
$dimmed = '';
if ($element['object']->is_hidden()) {
$dimmed = ' dimmed_text ';
}
if ($object->itemtype == 'mod') {
$icon = '<img src="'.$CFG->modpixpath.'/'.$object->itemmodule.'/icon.gif" class="icon" alt="'
.get_string('modulename', $object->itemmodule).'"/>';
} else if ($object->itemtype == 'manual') {
//TODO: add manual grading icon
$icon = '<img src="'.$CFG->pixpath.'/t/edit.gif" class="icon" alt="'.get_string('manualgrade', 'grades')
.'"/>'; // TODO: localize
}
$headerhtml .= '<th class="'.$type.$catlevel.$dimmed.'"><a href="'.$baseurl.'&amp;sortitemid='
. $element['object']->id .'">'. $element['object']->get_name()
. '</a>' . $arrow;
$headerhtml .= grade_get_icons($element, $gtree) . '</th>';
$items[$element['object']->sortorder] =& $element['object'];
}
}
$headerhtml .= '</tr>';
}
// Prepare Table Rows
$studentshtml = '';
foreach ($users as $userid => $user) {
$studentshtml .= '<tr><th class="user">' . $user->firstname . ' ' . $user->lastname . '</th>';
foreach ($items as $item) {
$studentshtml .= '<td>';
if (isset($finalgrades[$userid][$item->id])) {
$gradeval = $finalgrades[$userid][$item->id]->finalgrade;
// trim trailing "0"s
if (isset($gradeval)) {
if ($gradeval != 0) {
$gradeval = trim($gradeval, ".0");
} else {
$gradeval = 0;
}
}
$grade = new grade_grades($finalgrades[$userid][$item->id], false);
$grade->feedback = $finalgrades[$userid][$item->id]->feedback;
} else {
if ($USER->gradeediting) {
$gradeval ='';
} else {
$gradeval = '-';
}
$grade = new grade_grades(array('userid' => $userid, 'itemid' => $item->id), false);
}
// if in editting mode, we need to print either a text box
// or a drop down (for scales)
if ($USER->gradeediting) {
// We need to retrieve each grade_grade object from DB in order to
// know if they are hidden/locked
if ($item->scaleid) {
if ($scale = get_record('scale', 'id', $item->scaleid)) {
$scales = explode(",", $scale->scale);
// reindex because scale is off 1
$i = 0;
foreach ($scales as $scaleoption) {
$i++;
$scaleopt[$i] = $scaleoption;
}
$studentshtml .= choose_from_menu($scaleopt, 'grade_'.$userid.'_'.$item->id,
$gradeval, get_string('nograde'), '', -1, true);
}
} else {
$studentshtml .= '<input size="6" type="text" name="grade_'.$userid.'_'.$item->id.'" value="'.$gradeval.'"/>';
}
} else {
// finalgrades[$userid][$itemid] could be null because of the outer join
// in this case it's different than a 0
if ($item->scaleid) {
if ($scale = get_record('scale', 'id', $item->scaleid)) {
$scales = explode(",", $scale->scale);
// invalid grade if gradeval < 1
if ((int) $gradeval < 1) {
$studentshtml .= '-';
} else {
$studentshtml .= round($scales[$gradeval-1], $decimals);
}
} else {
// no such scale, throw error?
}
} else {
$studentshtml .= round($gradeval, $decimals);
}
}
// Do not show any icons if no grade (no record in DB to match)
if (!empty($grade->id)) {
// emulate grade element
$grade->courseid = $course->id;
$grade->grade_item = $item; // this may speedup is_hidden() and other grade_grades methods
$element = array ('eid'=>'g'.$grade->id, 'object'=>$grade, 'type'=>'grade');
$studentshtml .= grade_get_icons($element, $gtree);
}
$studentshtml .= '</td>' . "\n";
}
$studentshtml .= '</tr>';
}
$reporthtml = "<table class=\"boxaligncenter\">$headerhtml";
$reporthtml .= $studentshtml;
$reporthtml .= "</table>";
// print submit button
if ($USER->gradeediting) {
echo '<form action="report.php" method="post">';
echo '<div>';
echo '<input type="hidden" value="'.$courseid.'" name="id" />';
echo '<input type="hidden" value="'.sesskey().'" name="sesskey" />';
echo '<input type="hidden" value="grader" name="report"/>';
}
echo $reporthtml;
// print submit button
if ($USER->gradeediting) {
echo '<div style="text-align:center"><input type="submit" value="'.get_string('update').'" /></div>';
echo '</div></form>';
}
?>