nicolasconnault
123 lines
4.7 KiB
PHP
Executable File
123 lines
4.7 KiB
PHP
Executable File
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle 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 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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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 $plugin = 'xml';
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var $updatedgradesonly = false; // default to export ALL grades
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/**
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* To be implemented by child classes
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* @param boolean $feedback
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* @param boolean $publish Whether to output directly, or send as a file
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* @return string
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*/
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function print_grades($feedback = false) {
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global $CFG;
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require_once($CFG->libdir.'/filelib.php');
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$export_tracking = $this->track_exports();
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$strgrades = get_string('grades');
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/// Calculate file name
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$downloadfilename = clean_filename("{$this->course->shortname} $strgrades.xml");
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make_upload_directory('temp/gradeexport', false);
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$tempfilename = $CFG->dataroot .'/temp/gradeexport/'. md5(sesskey().microtime().$downloadfilename);
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if (!$handle = fopen($tempfilename, 'w+b')) {
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error("Could not create a temporary file into which to dump the XML data.");
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return false;
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}
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/// time stamp to ensure uniqueness of batch export
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fwrite($handle, '<results batch="xml_export_'.time().'">'."\n");
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$export_buffer = array();
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$geub = new grade_export_update_buffer();
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$gui = new graded_users_iterator($this->course, $this->columns, $this->groupid);
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$gui->init();
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while ($userdata = $gui->next_user()) {
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$user = $userdata->user;
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if (empty($user->idnumber)) {
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//id number must exist
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continue;
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}
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// studentgrades[] index should match with corresponding $index
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foreach ($userdata->grades as $itemid => $grade) {
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$grade_item = $this->grade_items[$itemid];
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$grade->grade_item =& $grade_item;
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$gradestr = $this->format_grade($grade); // no formating for now
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// MDL-11669, skip exported grades or bad grades (if setting says so)
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if ($export_tracking) {
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$status = $geub->track($grade);
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if ($this->updatedgradesonly && ($status == 'nochange' || $status == 'unknown')) {
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continue;
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}
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}
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fwrite($handle, "\t<result>\n");
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if ($export_tracking) {
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fwrite($handle, "\t\t<state>$status</state>\n");
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}
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// only need id number
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fwrite($handle, "\t\t<assignment>{$grade_item->idnumber}</assignment>\n");
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// this column should be customizable to use either student id, idnumber, uesrname or email.
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fwrite($handle, "\t\t<student>{$user->idnumber}</student>\n");
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fwrite($handle, "\t\t<score>$gradestr</score>\n");
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if ($this->export_feedback) {
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$feedbackstr = $this->format_feedback($userdata->feedbacks[$itemid]);
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fwrite($handle, "\t\t<feedback>$feedbackstr</feedback>\n");
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}
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fwrite($handle, "\t</result>\n");
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}
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}
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fwrite($handle, "</results>");
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fclose($handle);
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$gui->close();
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$geub->close();
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if (strpos($CFG->wwwroot, 'https://') === 0) { //https sites - watch out for IE! KB812935 and KB316431
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@header('Cache-Control: max-age=10');
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@header('Expires: '. gmdate('D, d M Y H:i:s', 0) .' GMT');
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@header('Pragma: ');
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} else { //normal http - prevent caching at all cost
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@header('Cache-Control: private, must-revalidate, pre-check=0, post-check=0, max-age=0');
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@header('Expires: '. gmdate('D, d M Y H:i:s', 0) .' GMT');
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@header('Pragma: no-cache');
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}
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header("Content-type: text/xml; charset=UTF-8");
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header("Content-Disposition: attachment; filename=\"$downloadfilename\"");
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readfile_chunked($tempfilename);
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@unlink($tempfilename);
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exit();
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}
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}
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?>
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