reset.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * reset.php - resets an urkund submission
 *
 * @since 2.0
 * @package    plagiarism_urkund
 * @subpackage plagiarism
 * @author     Dan Marsden <dan@danmarsden.com>
 * @copyright  2011 Dan Marsden http://danmarsden.com
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once(dirname(dirname(__FILE__)) . '/../config.php');

$cmid = required_param('cmid', PARAM_INT);  // Course Module ID
$pf  = required_param('pf', PARAM_INT);   // plagiarism file id.
require_sesskey();
$url = new moodle_url('/plagiarism/urkund/reset.php');
$cm = get_coursemodule_from_id('',$cmid, 0, false, MUST_EXIST);

$PAGE->set_url($url);
require_login($cm->course, true, $cm);

$modulecontext = get_context_instance(CONTEXT_MODULE, $cmid);
require_capability('moodle/plagiarism_urkund:resetfile', $modulecontext);

$plagiarism_file = $DB->get_record('plagiarism_urkund_files', array('id'=>$pf), '*', MUST_EXIST);

//reset db entry.
$plagiarism_file->statuscode = 'pending';
$plagiarism_file->attempt = 0;
$plagiarism_file->timesubmitted = time();
$DB->update_record('plagiarism_urkund_files', $plagiarism_file);
//now trigger event to process the file.

//TODO: this is hardcoded to assignment mod :-(
if ($cm->modname =='assignment') {
     $submission = $DB->get_record('assignment_submissions', array('assignment'=>$cm->instance, 'userid'=>$plagiarism_file->userid));
     $fs = get_file_storage();
     $files = $fs->get_area_files($modulecontext->id, 'mod_assignment', 'submission', $submission->id);
     if (!empty($files)) {
         $eventdata = new stdClass();
         $eventdata->modulename   = $cm->modname;
         $eventdata->cmid         = $cm->id;
         $eventdata->courseid     = $cm->course;
         $eventdata->userid       = $plagiarism_file->userid;
         $eventdata->files        = $files;

         events_trigger('assessable_file_uploaded', $eventdata);
     }
}


$redirect = new moodle_url('/mod/'.$cm->modname.'/submissions.php',array('id'=>$cmid));
redirect($redirect, get_string('filereset', 'plagiarism_urkund'));