course/unenrol.php

   1 <?php // $Id$
   2
   3 //  Remove oneself or someone else from a course, unassigning all
   4 //  roles one might have
   5 //
   6 //  This will not delete any of their data from the course,
   7 //  but will remove them from the participant list and prevent
   8 //  any course email being sent to them.
   9
  10     require_once("../config.php");
  11     require_once("lib.php");
  12
  13     $id      = required_param('id', PARAM_INT);               //course
  14     $userid  = optional_param('user', 0, PARAM_INT);          //course
  15     $confirm = optional_param('confirm', 0, PARAM_BOOL);
  16
  17     if (! $course = get_record('course', 'id', $id) ) {
  18         error('Invalid course id');
  19     }
  20
  21     if (! $context = get_context_instance(CONTEXT_COURSE, $course->id)) {
  22         error('Invalid context');
  23     }
  24
  25     require_login($course->id);
  26
  27     if ($course->metacourse) {
  28         print_error('cantunenrollfrommetacourse', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
  29     }
  30
  31     if ($userid) {   // Unenrolling someone else
  32         require_capability('moodle/role:assign', $context, NULL, false);
  33     } else {         // Unenrol yourself
  34         require_capability('moodle/role:unassignself', $context, NULL, false);
  35     }
  36
  37     if (!empty($USER->switchrole[$context->id])) {
  38         print_error('cantunenrollinthisrole', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
  39     }
  40
  41     if ($confirm and confirm_sesskey()) {
  42         if ($userid) {
  43             if (! role_unassign(0, $userid, 0, $context->id)) {
  44                 error("An error occurred while trying to unenrol that person.");
  45             }
  46
  47             add_to_log($course->id, 'course', 'unenrol', "view.php?id=$course->id", $userid);
  48             redirect($CFG->wwwroot.'/user/index.php?id='.$course->id);
  49
  50         } else {
  51             if (! role_unassign(0, $USER->id, 0, $context->id)) {
  52                 error("An error occurred while trying to unenrol you.");
  53             }
  54             add_to_log($course->id, 'course', 'unenrol', "view.php?id=$course->id", $USER->id);
  55
  56             redirect($CFG->wwwroot);
  57         }
  58     }
  59
  60
  61     $strunenrol = get_string('unenrol');
  62
  63     print_header("$course->shortname: $strunenrol", $course->fullname,
  64                  "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> -> $strunenrol");
  65
  66     if ($userid) {
  67         if (!$user = get_record('user', 'id', $userid)) {
  68             error('That user does not exist!');
  69         }
  70         $strunenrolsure  = get_string('unenrolsure', '', fullname($user, true));
  71         notice_yesno($strunenrolsure, "unenrol.php?id=$id&amp;user=$user->id&amp;confirm=yes&amp;sesskey=".sesskey(),
  72                                       $_SERVER['HTTP_REFERER']);
  73     } else {
  74         $strunenrolsure  = get_string('unenrolsure', '', get_string("yourself"));
  75         notice_yesno($strunenrolsure, "unenrol.php?id=$id&amp;confirm=yes&amp;sesskey=".sesskey(),
  76                                       $_SERVER['HTTP_REFERER']);
  77     }
  78
  79     print_footer($course);
  80
  81 ?>