badges/cron.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Cron job for reviewing and aggregating badge award criteria
  19  *
  20  * @package    core
  21  * @subpackage badges
  22  * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
  25  */
  26
  27 defined('MOODLE_INTERNAL') || die();
  28 require_once($CFG->libdir . '/badgeslib.php');
  29
  30 function badge_cron() {
  31     global $CFG;
  32
  33     if (!empty($CFG->enablebadges)) {
  34         badge_review_cron();
  35         badge_message_cron();
  36     }
  37 }
  38
  39 /**
  40  * Reviews criteria and awards badges
  41  *
  42  * First find all badges that can be earned, then reviews each badge.
  43  * (Not sure how efficient this is timewise).
  44  */
  45 function badge_review_cron() {
  46     global $DB, $CFG;
  47     $total = 0;
  48
  49     $courseparams = array();
  50     if (empty($CFG->badges_allowcoursebadges)) {
  51         $coursesql = '';
  52     } else {
  53         $coursesql = ' OR EXISTS (SELECT id FROM {course} WHERE visible = :visible AND startdate < :current) ';
  54         $courseparams = array('visible' => true, 'current' => time());
  55     }
  56
  57     $sql = 'SELECT id
  58                 FROM {badge}
  59                 WHERE (status = :active OR status = :activelocked)
  60                     AND (type = :site ' . $coursesql . ')';
  61     $badgeparams = array(
  62                     'active' => BADGE_STATUS_ACTIVE,
  63                     'activelocked' => BADGE_STATUS_ACTIVE_LOCKED,
  64                     'site' => BADGE_TYPE_SITE
  65                     );
  66     $params = array_merge($badgeparams, $courseparams);
  67     $badges = $DB->get_fieldset_sql($sql, $params);
  68
  69     mtrace('Started reviewing available badges.');
  70     foreach ($badges as $bid) {
  71         $badge = new badge($bid);
  72
  73         if ($badge->has_criteria()) {
  74             if (debugging()) {
  75                 mtrace('Processing badge "' . $badge->name . '"...');
  76             }
  77
  78             $issued = $badge->review_all_criteria();
  79
  80             if (debugging()) {
  81                 mtrace('...badge was issued to ' . $issued . ' users.');
  82             }
  83             $total += $issued;
  84         }
  85     }
  86
  87     mtrace('Badges were issued ' . $total . ' time(s).');
  88 }
  89
  90 /**
  91  * Sends out scheduled messages to badge creators
  92  *
  93  */
  94 function badge_message_cron() {
  95     global $DB;
  96
  97     mtrace('Sending scheduled badge notifications.');
  98
  99     $scheduled = $DB->get_records_select('badge', 'notification > ? AND (status != ?) AND nextcron < ?',
 100                             array(BADGE_MESSAGE_ALWAYS, BADGE_STATUS_ARCHIVED, time()),
 101                             'notification ASC', 'id, name, notification, usercreated as creator, timecreated');
 102
 103     foreach ($scheduled as $sch) {
 104         // Send messages.
 105         badge_assemble_notification($sch);
 106
 107         // Update next cron value.
 108         $nextcron = badges_calculate_message_schedule($sch->notification);
 109         $DB->set_field('badge', 'nextcron', $nextcron, array('id' => $sch->id));
 110     }
 111 }
 112
 113 /**
 114  * Creates single message for all notification and sends it out
 115  *
 116  * @param object $badge A badge which is notified about.
 117  */
 118 function badge_assemble_notification(stdClass $badge) {
 119     global $DB;
 120
 121     $userfrom = core_user::get_noreply_user();
 122     $userfrom->maildisplay = true;
 123
 124     if ($msgs = $DB->get_records_select('badge_issued', 'issuernotified IS NULL AND badgeid = ?', array($badge->id))) {
 125         // Get badge creator.
 126         $creator = $DB->get_record('user', array('id' => $badge->creator), '*', MUST_EXIST);
 127         $creatorsubject = get_string('creatorsubject', 'badges', $badge->name);
 128         $creatormessage = '';
 129
 130         // Put all messages in one digest.
 131         foreach ($msgs as $msg) {
 132             $issuedlink = html_writer::link(new moodle_url('/badges/badge.php', array('hash' => $msg->uniquehash)), $badge->name);
 133             $recipient = $DB->get_record('user', array('id' => $msg->userid), '*', MUST_EXIST);
 134
 135             $a = new stdClass();
 136             $a->user = fullname($recipient);
 137             $a->link = $issuedlink;
 138             $creatormessage .= get_string('creatorbody', 'badges', $a);
 139             $DB->set_field('badge_issued', 'issuernotified', time(), array('badgeid' => $msg->badgeid, 'userid' => $msg->userid));
 140         }
 141
 142         // Create a message object.
 143         $eventdata = new stdClass();
 144         $eventdata->component         = 'moodle';
 145         $eventdata->name              = 'badgecreatornotice';
 146         $eventdata->userfrom          = $userfrom;
 147         $eventdata->userto            = $creator;
 148         $eventdata->notification      = 1;
 149         $eventdata->subject           = $creatorsubject;
 150         $eventdata->fullmessage       = format_text_email($creatormessage, FORMAT_HTML);
 151         $eventdata->fullmessageformat = FORMAT_PLAIN;
 152         $eventdata->fullmessagehtml   = $creatormessage;
 153         $eventdata->smallmessage      = $creatorsubject;
 154
 155         message_send($eventdata);
 156     }
 157 }