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Differences Between: [Versions 401 and 403]

   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   * This file processes AJAX enrolment actions and returns JSON for the manual enrolments plugin
  19   *
  20   * The general idea behind this file is that any errors should throw exceptions
  21   * which will be returned and acted upon by the calling AJAX script.
  22   *
  23   * @package    enrol_manual
  24   * @copyright  2010 Sam Hemelryk
  25   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26   */
  27  
  28  define('AJAX_SCRIPT', true);
  29  
  30  require('../../config.php');
  31  require_once($CFG->dirroot.'/enrol/locallib.php');
  32  require_once($CFG->dirroot.'/group/lib.php');
  33  require_once($CFG->dirroot.'/enrol/manual/locallib.php');
  34  require_once($CFG->dirroot.'/cohort/lib.php');
  35  require_once($CFG->dirroot . '/enrol/manual/classes/enrol_users_form.php');
  36  
  37  $id      = required_param('id', PARAM_INT); // Course id.
  38  $action  = required_param('action', PARAM_ALPHANUMEXT);
  39  
  40  $PAGE->set_url(new moodle_url('/enrol/ajax.php', array('id'=>$id, 'action'=>$action)));
  41  
  42  $course = $DB->get_record('course', array('id'=>$id), '*', MUST_EXIST);
  43  $context = context_course::instance($course->id, MUST_EXIST);
  44  
  45  if ($course->id == SITEID) {
  46      throw new moodle_exception('invalidcourse');
  47  }
  48  
  49  require_login($course);
  50  require_capability('moodle/course:enrolreview', $context);
  51  require_sesskey();
  52  
  53  echo $OUTPUT->header(); // Send headers.
  54  
  55  $manager = new course_enrolment_manager($PAGE, $course);
  56  
  57  $outcome = new stdClass();
  58  $outcome->success = true;
  59  $outcome->response = new stdClass();
  60  $outcome->error = '';
  61  $outcome->count = 0;
  62  
  63  $searchanywhere = get_user_preferences('userselector_searchanywhere', false);
  64  
  65  switch ($action) {
  66      case 'enrol':
  67          $enrolid = required_param('enrolid', PARAM_INT);
  68          $cohorts = $users = [];
  69  
  70          $userids = optional_param_array('userlist', [], PARAM_SEQUENCE);
  71          $userid = optional_param('userid', 0, PARAM_INT);
  72          if ($userid) {
  73              $userids[] = $userid;
  74          }
  75          if ($userids) {
  76              foreach ($userids as $userid) {
  77                  $users[] = $DB->get_record('user', array('id' => $userid), '*', MUST_EXIST);
  78              }
  79          }
  80          $cohortids = optional_param_array('cohortlist', [], PARAM_SEQUENCE);
  81          $cohortid = optional_param('cohortid', 0, PARAM_INT);
  82          if ($cohortid) {
  83              $cohortids[] = $cohortid;
  84          }
  85          if ($cohortids) {
  86              foreach ($cohortids as $cohortid) {
  87                  $cohort = $DB->get_record('cohort', array('id' => $cohortid), '*', MUST_EXIST);
  88                  if (!cohort_can_view_cohort($cohort, $context)) {
  89                      throw new enrol_ajax_exception('invalidenrolinstance'); // TODO error text!
  90                  }
  91                  $cohorts[] = $cohort;
  92              }
  93          }
  94  
  95          $roleid = optional_param('roletoassign', null, PARAM_INT);
  96          $duration = optional_param('duration', 0, PARAM_INT);
  97          $startdate = optional_param('startdate', 0, PARAM_INT);
  98          $recovergrades = optional_param('recovergrades', 0, PARAM_INT);
  99          $timeend = optional_param_array('timeend', [], PARAM_INT);
 100  
 101          if (empty($roleid)) {
 102              $roleid = null;
 103          } else {
 104              if (!has_capability('moodle/role:assign', $context)) {
 105                  throw new enrol_ajax_exception('assignnotpermitted');
 106              }
 107              if (!array_key_exists($roleid, get_assignable_roles($context, ROLENAME_ALIAS, false))) {
 108                  throw new enrol_ajax_exception('invalidrole');
 109              }
 110          }
 111  
 112          if (empty($startdate)) {
 113              if (!$startdate = get_config('enrol_manual', 'enrolstart')) {
 114                  // Default to now if there is no system setting.
 115                  $startdate = 4;
 116              }
 117          }
 118  
 119          switch($startdate) {
 120              case 2:
 121                  $timestart = $course->startdate;
 122                  break;
 123              case 4:
 124                  // We mimic get_enrolled_sql round(time(), -2) but always floor as we want users to always access their
 125                  // courses once they are enrolled.
 126                  $timestart = intval(substr(time(), 0, 8) . '00') - 1;
 127                  break;
 128              case 3:
 129              default:
 130                  $today = time();
 131                  $today = make_timestamp(date('Y', $today), date('m', $today), date('d', $today), 0, 0, 0);
 132                  $timestart = $today;
 133                  break;
 134          }
 135          if ($timeend) {
 136              $timeend = make_timestamp($timeend['year'], $timeend['month'], $timeend['day'], $timeend['hour'], $timeend['minute']);
 137          } else if ($duration <= 0) {
 138              $timeend = 0;
 139          } else {
 140              $timeend = $timestart + $duration;
 141          }
 142  
 143          $mform = new enrol_manual_enrol_users_form(null, (object)["context" => $context]);
 144          $userenroldata = [
 145                  'startdate' => $timestart,
 146                  'timeend' => $timeend,
 147          ];
 148          $mform->set_data($userenroldata);
 149          $validationerrors = $mform->validation($userenroldata, null);
 150          if (!empty($validationerrors)) {
 151              throw new enrol_ajax_exception('invalidenrolduration');
 152          }
 153  
 154          $instances = $manager->get_enrolment_instances();
 155          $plugins = $manager->get_enrolment_plugins(true); // Do not allow actions on disabled plugins.
 156          if (!array_key_exists($enrolid, $instances)) {
 157              throw new enrol_ajax_exception('invalidenrolinstance');
 158          }
 159          $instance = $instances[$enrolid];
 160          if (!isset($plugins[$instance->enrol])) {
 161              throw new enrol_ajax_exception('enrolnotpermitted');
 162          }
 163          $plugin = $plugins[$instance->enrol];
 164          if ($plugin->allow_enrol($instance) && has_capability('enrol/'.$plugin->get_name().':enrol', $context)) {
 165              foreach ($users as $user) {
 166                  $plugin->enrol_user($instance, $user->id, $roleid, $timestart, $timeend, null, $recovergrades);
 167              }
 168              $outcome->count += count($users);
 169              foreach ($cohorts as $cohort) {
 170                  $totalenrolledusers = $plugin->enrol_cohort($instance, $cohort->id, $roleid, $timestart, $timeend, null, $recovergrades);
 171                  $outcome->count += $totalenrolledusers;
 172              }
 173          } else {
 174              throw new enrol_ajax_exception('enrolnotpermitted');
 175          }
 176          $outcome->success = true;
 177          break;
 178  
 179      default:
 180          throw new enrol_ajax_exception('unknowajaxaction');
 181  }
 182  
 183  echo json_encode($outcome);