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     $enrol = enrolment_factory::factory($course->enrol); // do not use if (!$enrol... here, it can not work in PHP4 - see MDL-7529
  31
  32 /// Refreshing all current role assignments for the current user
  33
  34     load_all_capabilities();
  35
  36 /// Double check just in case they are actually enrolled already and
  37 /// thus got to this script by mistake.  This might occur if enrolments
  38 /// changed during this session or something
  39
  40     if (has_capability('moodle/course:view', $context) and !has_capability('moodle/legacy:guest', $context, NULL, false)) {
  41         if ($SESSION->wantsurl) {
  42             $destination = $SESSION->wantsurl;
  43             unset($SESSION->wantsurl);
  44         } else {
  45             $destination = "$CFG->wwwroot/course/view.php?id=$course->id";
  46         }
  47         redirect($destination);   // Bye!
  48     }
  49
  50 /// Check if the course is a meta course  (bug 5734)
  51     if ($course->metacourse) {
  52         print_header_simple();
  53         notice(get_string('coursenotaccessible'), "$CFG->wwwroot/index.php");
  54     }
  55
  56 /// Users can't enroll to site course
  57     if ($course->id == SITEID) {
  58         print_header_simple();
  59         notice(get_string('enrollfirst'), "$CFG->wwwroot/index.php");
  60     }
  61
  62 /// Double check just in case they are enrolled to start in the future
  63
  64     if ($course->enrolperiod) {   // Only active if the course has an enrolment period in effect
  65         if ($roles = get_user_roles($context, $USER->id)) {
  66             foreach ($roles as $role) {
  67                 if ($role->timestart and ($role->timestart >= time())) {
  68                     $message = get_string('enrolmentnotyet', '', userdate($student->timestart));
  69                     print_header();
  70                     notice($message, "$CFG->wwwroot/index.php");
  71                 }
  72             }
  73         }
  74     }
  75
  76 /// Check if the course is enrollable
  77     if (!method_exists($enrol, 'print_entry')) {
  78         print_header_simple();
  79         notice(get_string('enrolmentnointernal'), "$CFG->wwwroot/index.php");
  80     }
  81
  82     if (!$course->enrollable ||
  83             ($course->enrollable == 2 && $course->enrolstartdate > 0 && $course->enrolstartdate > time()) ||
  84             ($course->enrollable == 2 && $course->enrolenddate > 0 && $course->enrolenddate <= time())
  85             ) {
  86         print_header($course->shortname, $course->fullname, $course->shortname );
  87         notice(get_string('notenrollable'), "$CFG->wwwroot/index.php");
  88     }
  89
  90 /// Check the submitted enrolment information if there is any (eg could be enrolment key)
  91
  92     if ($form = data_submitted()) {
  93         $enrol->check_entry($form, $course);   // Should terminate/redirect in here if it's all OK
  94     }
  95
  96 /// Otherwise, we print the entry form.
  97
  98     $enrol->print_entry($course);
  99
 100 /// Easy!
 101
 102 ?>