course/enrol.php

   1 <?php // $Id$
   2       // Depending on the current enrolment method, this page
   3       // presents the user with whatever they need to know when
   4       // they try to enrol in a course.
   5
   6     require_once("../config.php");
   7     require_once("lib.php");
   8     require_once("$CFG->dirroot/enrol/enrol.class.php");
   9
  10     $id           = required_param('id', PARAM_INT);
  11     $loginasguest = optional_param('loginasguest', 0, PARAM_BOOL); // hmm, is this still needed?
  12
  13     if (!isloggedin()) {
  14         $wwwroot = $CFG->wwwroot;
  15         if (!empty($CFG->loginhttps)) {
  16             $wwwroot = str_replace('http:','https:', $wwwroot);
  17         }
  18         // do not use require_login here because we are usually comming from it
  19         redirect($wwwroot.'/login/index.php');
  20     }
  21
  22     if (! $course = get_record('course', 'id', $id) ) {
  23         error("That's an invalid course id");
  24     }
  25
  26     if (! $context = get_context_instance(CONTEXT_COURSE, $course->id) ) {
  27         error("That's an invalid course id");
  28     }
  29
  30 /// do not use when in course login as
  31     if (!empty($USER->realuser) and $USER->loginascontext->contextlevel == CONTEXT_COURSE) {
  32         print_error('loginasnoenrol', '', $CFG->wwwroot.'/course/view.php?id='.$USER->loginascontext->instanceid);
  33     }
  34
  35     $enrol = enrolment_factory::factory($course->enrol); // do not use if (!$enrol... here, it can not work in PHP4 - see MDL-7529
  36
  37 /// Refreshing all current role assignments for the current user
  38
  39     load_all_capabilities();
  40
  41 /// Double check just in case they are actually enrolled already and
  42 /// thus got to this script by mistake.  This might occur if enrolments
  43 /// changed during this session or something
  44
  45     if (has_capability('moodle/course:view', $context) and !has_capability('moodle/legacy:guest', $context, NULL, false)) {
  46         if (!empty($SESSION->wantsurl)) {
  47             $destination = $SESSION->wantsurl;
  48             unset($SESSION->wantsurl);
  49         } else {
  50             $destination = "$CFG->wwwroot/course/view.php?id=$course->id";
  51         }
  52         redirect($destination);   // Bye!
  53     }
  54
  55 /// Check if the course is a meta course  (bug 5734)
  56     if ($course->metacourse) {
  57         print_header_simple();
  58         notice(get_string('coursenotaccessible'), "$CFG->wwwroot/index.php");
  59     }
  60
  61 /// Users can't enroll to site course
  62     if ($course->id == SITEID) {
  63         print_header_simple();
  64         notice(get_string('enrollfirst'), "$CFG->wwwroot/index.php");
  65     }
  66
  67 /// Double check just in case they are enrolled to start in the future
  68
  69     if ($course->enrolperiod) {   // Only active if the course has an enrolment period in effect
  70         if ($roles = get_user_roles($context, $USER->id)) {
  71             foreach ($roles as $role) {
  72                 if ($role->timestart and ($role->timestart >= time())) {
  73                     $message = get_string('enrolmentnotyet', '', userdate($student->timestart));
  74                     print_header();
  75                     notice($message, "$CFG->wwwroot/index.php");
  76                 }
  77             }
  78         }
  79     }
  80
  81 /// Check if the course is enrollable
  82     if (!method_exists($enrol, 'print_entry')) {
  83         print_header_simple();
  84         notice(get_string('enrolmentnointernal'), "$CFG->wwwroot/index.php");
  85     }
  86
  87     if (!$course->enrollable ||
  88             ($course->enrollable == 2 && $course->enrolstartdate > 0 && $course->enrolstartdate > time()) ||
  89             ($course->enrollable == 2 && $course->enrolenddate > 0 && $course->enrolenddate <= time())
  90             ) {
  91         print_header($course->shortname, $course->fullname, build_navigation(array(array('name'=>$course->shortname,'link'=>'','type'=>'misc'))) );
  92         notice(get_string('notenrollable'), "$CFG->wwwroot/index.php");
  93     }
  94
  95 /// Check the submitted enrolment information if there is any (eg could be enrolment key)
  96
  97     if ($form = data_submitted()) {
  98         $enrol->check_entry($form, $course);   // Should terminate/redirect in here if it's all OK
  99     }
 100
 101 /// Otherwise, we print the entry form.
 102
 103     $enrol->print_entry($course);
 104
 105 /// Easy!
 106
 107 ?>