lib.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/>.

/**
 * Inactive user cleanup library
 *
 * @package    tool
 * @subpackage inactive user cleanup
 * @copyright  2014 dualcube {@link https://dualcube.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
 defined('MOODLE_INTERNAL') || die;
/*
 * Standard cron function
 */
require_once($CFG->libdir.'/adminlib.php');
has_capability('moodle/user:delete', context_system::instance());
function tool_inactive_user_cleanup_cron() {
    global $DB, $CFG;
    mtrace("Hey, admin tool inactive user cleanup is running");
    $beforedelete = get_config('tool_inactive_user_cleanup', 'daysbeforedeletion');
    $inactivity = get_config('tool_inactive_user_cleanup', 'daysofinactivity');
    $subject = get_config('tool_inactive_user_cleanup', 'emailsubject');
    $body = get_config('tool_inactive_user_cleanup', 'emailbody');
    $users = $DB->get_records('user', array('deleted' => '0'));
    $messagetext = html_to_text($body);
    $mainadminuser = get_admin();

    
    foreach ($users as $usersdetails) {
        $minus = round((time() - $usersdetails->lastaccess)/60/60/24);
        if ($minus > $inactivity) {
            $ischeck = $DB->get_record('tool_inactive_user_cleanup', array('userid' => $usersdetails->id));
            if (!$ischeck) {
                $record = new stdClass();
                $record->userid = $usersdetails->id;
                if (email_to_user($usersdetails, $mainadminuser, $subject, $messagetext)) {
                    mtrace('id');
                    mtrace($usersdetails->id. '---' .$usersdetails->email);
                    mtrace('minus'.$minus);
                    mtrace('email sent');
                    $record->emailsent = 1;
                    $record->date = time();
                    $lastinsertid = $DB->insert_record('tool_inactive_user_cleanup', $record, false);
                }
            }
        }
        if ($beforedelete != 0) {
            $deleteuserafternotify = $DB->get_record('tool_inactive_user_cleanup', array('userid' => $usersdetails->id));
            if (!empty($deleteuserafternotify)) {
                mtrace('days before delete'. strtotime('+'.$beforedelete.' day', $deleteuserafternotify->date));
                $minus_timestamp = strtotime('+' . $minus .' days');

                if (($minus_timestamp) >= ( strtotime('+'.$beforedelete.' day', $deleteuserafternotify->date) )) {
                    if (!isguestuser($usersdetails->id)) {
                        delete_user($usersdetails);
                        mtrace('delete user' . $usersdetails->id);
                    }
                }
            }
        } 
    }
    return true;
}