<?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/>.

/**

* Merge temporary user with real user.

*

* @package mod_attendance

* @copyright 2013 Davo Smith, Synergy Learning

* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

*/

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

global $CFG, $DB, $PAGE, $OUTPUT;

require_once($CFG->dirroot.'/mod/attendance/locallib.php');

require_once($CFG->dirroot.'/mod/attendance/tempmerge_form.php');

$id = required_param('id', PARAM_INT);

$userid = required_param('userid', PARAM_INT);

$cm = get_coursemodule_from_id('attendance', $id, 0, false, MUST_EXIST);

$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);

$att = $DB->get_record('attendance', array('id' => $cm->instance), '*', MUST_EXIST);

$tempuser = $DB->get_record('attendance_tempusers', array('id' => $userid), '*', MUST_EXIST);

$att = new attendance($att, $cm, $course);

$params = array('userid' => $tempuser->id);

$PAGE->set_url($att->url_tempmerge($params));

require_login($course, true, $cm);

$PAGE->set_title($course->shortname.": ".$att->name.' - '.get_string('tempusermerge', 'attendance'));

$PAGE->set_heading($course->fullname);

$PAGE->set_cacheable(true);

$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));

$PAGE->navbar->add(get_string('tempusermerge', 'attendance'));

$formdata = (object)array(

'id' => $cm->id,

'userid' => $tempuser->id,

);

$custom = array(

'description' => format_string($tempuser->fullname).' ('.format_string($tempuser->email).')',

);

$mform = new tempmerge_form(null, $custom);

$mform->set_data($formdata);

if ($mform->is_cancelled()) {

redirect($att->url_managetemp());

} else if ($data = $mform->get_data()) {

$sql = "SELECT s.id, lr.id AS reallogid, lt.id AS templogid

FROM {attendance_sessions} s

LEFT JOIN {attendance_log} lr ON lr.sessionid = s.id AND lr.studentid = :realuserid

LEFT JOIN {attendance_log} lt ON lt.sessionid = s.id AND lt.studentid = :tempuserid

WHERE s.attendanceid = :attendanceid AND lt.id IS NOT NULL

ORDER BY s.id";

$params = array(

'realuserid' => $data->participant,

'tempuserid' => $tempuser->studentid,

'attendanceid' => $att->id,

);

$logs = $DB->get_recordset_sql($sql, $params);

foreach ($logs as $log) {

if (!is_null($log->reallogid)) {

// Remove the existing attendance for the real user for this session.

$DB->delete_records('attendance_log', array('id' => $log->reallogid));

}

// Adjust the 'temp user' attendance record to point at the real user.

$DB->set_field('attendance_log', 'studentid', $data->participant, array('id' => $log->templogid));

}

// Delete the temp user.

$DB->delete_records('attendance_tempusers', array('id' => $tempuser->id));

$att->update_users_grade(array($data->participant)); // Update the gradebook after the merge.

redirect($att->url_managetemp());

}

/** @var mod_attendance_renderer $output */

$output = $PAGE->get_renderer('mod_attendance');

$tabs = new attendance_tabs($att, attendance_tabs::TAB_TEMPORARYUSERS);

echo $output->header();

echo $output->heading(get_string('tempusermerge', 'attendance').' : '.format_string($course->fullname));

echo $output->render($tabs);

$mform->display();

echo $output->footer($course);