moodler
122 lines
5.1 KiB
PHP
Executable File
122 lines
5.1 KiB
PHP
Executable File
<?php
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.com //
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// //
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// Copyright (C) 1999 onwards Martin Dougiamas http://moodle.com //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation; either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details: //
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// //
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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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require_once($CFG->dirroot.'/grade/export/lib.php');
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class grade_export_xml extends grade_export {
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var $format = 'xml'; // export format
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/**
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* To be implemented by child classes
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*/
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function print_grades($feedback = false) {
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global $CFG;
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/// Whether this plugin is entitled to update export time
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if ($expplugins = explode(",", $CFG->gradeexport)) {
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if (in_array($this->format, $expplugins)) {
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$export = true;
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} else {
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$export = false;
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}
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} else {
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$export = false;
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}
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require_once($CFG->dirroot.'/lib/excellib.class.php');
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/// Calculate file name
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$downloadfilename = clean_filename("{$this->course->shortname} $this->strgrades.xml");
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header("Content-type: text/xml; charset=UTF-8");
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header("Content-Disposition: attachment; filename=\"$downloadfilename\"");
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/// time stamp to ensure uniqueness of batch export
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echo '<results batch="xml_export_'.time().'">';
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foreach ($this->columnidnumbers as $index => $idnumber) {
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// studentgrades[] index should match with corresponding $index
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foreach ($this->grades as $studentid => $studentgrades) {
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echo '<result>';
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// state can be new, or regrade
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// require comparing of timestamps in db
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$params = new object();
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$params->idnumber = $idnumber;
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// get the grade item
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$gradeitem = new grade_item($params);
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// we are trying to figure out if this is a new grade, or a regraded grade
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// only relevant if this grade for this user is already exported
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// get the grade_grade for this user
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$params = new object();
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$params->itemid = $gradeitem->id;
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$params->userid = $studentid;
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$grade_grade = new grade_grade($params);
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// if exported, check grade_history, if modified after export, set state to regrade
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if (!empty($grade_grade->exported)) {
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//TODO: use timemodified or something else instead
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/* if (record_exists_select('grade_history', 'itemid = '.$gradeitem->id.' AND userid = '.$studentid.' AND timemodified > '.$grade_grade->exported)) {
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$status = 'regrade';
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} else {
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$status = 'new';
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}*/
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} else {
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// never exported
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$status = 'new';
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}
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echo '<state>'.$status.'</state>';
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// only need id number
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echo '<assignment>'.$idnumber.'</assignment>';
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// this column should be customizable to use either student id, idnumber, uesrname or email.
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echo '<student>'.$studentid.'</student>';
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echo '<score>'.$studentgrades[$index].'</score>';
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if ($feedback) {
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echo '<feedback>'.$this->comments[$studentid][$index].'</feedback>';
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}
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echo '</result>';
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// timestamp this if needed
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if ($export) {
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$grade_grade->exported = time();
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// update the time stamp;
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$grade_grade->update();
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}
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}
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}
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echo '</results>';
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exit;
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}
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}
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?>
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