user/groupextendenrol.php

   1 <?php  // $Id$
   2 require_once("../config.php");
   3
   4 $id    = required_param('id', PARAM_INT);              // course id
   5 $users = optional_param('userid', array(), PARAM_INT); // array of user id
   6
   7 if (! $course = get_record('course', 'id', $id)) {
   8     error("Course ID is incorrect");
   9 }
  10
  11 $context = get_context_instance(CONTEXT_COURSE, $id);
  12 require_login($course->id);
  13
  14 // to extend enrolments current user needs to be able to do role assignments
  15 require_capability('moodle/role:assign', $context);
  16 $today = time();
  17 $today = make_timestamp(date('Y', $today), date('m', $today), date('d', $today), 0, 0, 0);
  18
  19 if ((count($users) > 0) and ($form = data_submitted()) and confirm_sesskey()) {
  20
  21     foreach ($form->userid as $k => $v) {
  22         // find all roles this student have in this course
  23         if ($students = get_records_sql("SELECT ra.id, ra.roleid, ra.timestart, ra.timeend
  24                                        FROM {$CFG->prefix}role_assignments ra
  25                                        WHERE userid = $v
  26                                        AND contextid = $context->id")) {
  27             // enrol these users again, with time extension
  28             // not that this is not necessarily a student role
  29             foreach ($students as $student) {
  30                 // only extend if the user can make role assignments on this role
  31                 if (user_can_assign($context, $student->roleid)) {
  32                     switch($form->extendperiod) {
  33                         case 0: // No change (currently this option is not available in dropdown list, but it might be ...)
  34                             break;
  35                         case -1: // unlimited
  36                             $student->timeend = 0;
  37                             break;
  38                         default: // extend
  39                             switch($form->extendbase) {
  40                                 case 0: // course start date
  41                                     $student->timeend = $course->startdate + $form->extendperiod;
  42                                     break;
  43                                 case 1: // student enrolment start date
  44                                     // we check for student enrolment date because Moodle versions before 1.9 did not set this for
  45                                     // unlimited enrolment courses, so it might be 0
  46                                     if($student->timestart > 0) {
  47                                         $student->timeend = $student->timestart + $form->extendperiod;
  48                                     }
  49                                     break;
  50                                 case 2: // student enrolment start date
  51                                     // enrolment end equals 0 means Unlimited, so adding some time to that will still yield Unlimited
  52                                     if($student->timeend > 0) {
  53                                         $student->timeend = $student->timeend + $form->extendperiod;
  54                                     }
  55                                     break;
  56                                 case 3: // current date
  57                                     $student->timeend = $today + $form->extendperiod;
  58                                     break;
  59                                 case 4: // course enrolment start date
  60                                     if($course->enrolstartdate > 0) {
  61                                         $student->timeend = $course->enrolstartdate + $form->extendperiod;
  62                                     }
  63                                     break;
  64                                 case 5: // course enrolment end date
  65                                     if($course->enrolenddate > 0) {
  66                                         $student->timeend = $course->enrolenddate + $form->extendperiod;
  67                                     }
  68                                     break;
  69                             }
  70                     }
  71                     role_assign($student->roleid, $v, 0, $context->id, $student->timestart, $student->timeend, 0);
  72                 }
  73             }
  74         }
  75     }
  76
  77     redirect("$CFG->wwwroot/user/index.php?id=$id", get_string('changessaved'));
  78 }
  79
  80 /// Print headers
  81
  82 $navlinks = array();
  83 $navlinks[] = array('name' => get_string('extendenrol'), 'link' => null, 'type' => 'misc');
  84 $navigation = build_navigation($navlinks);
  85
  86 print_header("$course->shortname: ".get_string('extendenrol'), $course->fullname, $navigation, "", "", true, "&nbsp;", navmenu($course));
  87
  88 $timeformat = get_string('strftimedate');
  89 $unlimited = get_string('unlimited');
  90 $periodmenu[-1] = $unlimited;
  91 for ($i=1; $i<=365; $i++) {
  92     $seconds = $i * 86400;
  93     $periodmenu[$seconds] = get_string('numdays', '', $i);
  94 }
  95
  96 $basemenu[0] = get_string('startdate') . ' (' . userdate($course->startdate, $timeformat) . ')';
  97 $basemenu[1] = get_string('enrolmentstart');
  98 $basemenu[2] = get_string('enrolmentend');
  99 if($course->enrollable != 2 || ($course->enrolstartdate == 0 || $course->enrolstartdate <= $today) && ($course->enrolenddate == 0 || $course->enrolenddate > $today)) {
 100     $basemenu[3] = get_string('today') . ' (' . userdate($today, $timeformat) . ')' ;
 101 }
 102 if($course->enrollable == 2) {
 103     if($course->enrolstartdate > 0) {
 104         $basemenu[4] = get_string('courseenrolstartdate') . ' (' . userdate($course->enrolstartdate, $timeformat) . ')';
 105     }
 106     if($course->enrolenddate > 0) {
 107         $basemenu[5] = get_string('courseenrolenddate') . ' (' . userdate($course->enrolenddate, $timeformat) . ')';
 108     }
 109 }
 110
 111 $title = get_string('groupextendenrol');
 112 print_heading($title . helpbutton('groupextendenrol', $title, 'moodle', true, false, '', true));
 113 echo '<form method="post" action="groupextendenrol.php">';
 114 echo '<input type="hidden" name="id" value="'.$course->id.'" />';
 115 echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
 116 $table->head  = array (get_string('fullname'), get_string('enrolmentstart'), get_string('enrolmentend'));
 117 $table->align = array ('left', 'center', 'center', 'center');
 118 $table->width = "600";
 119 $nochange = get_string('nochange');
 120 $notavailable = get_string('notavailable');
 121
 122 foreach ($_POST as $k => $v) {
 123     if (preg_match('/^user(\d+)$/',$k,$m)) {
 124
 125         if (!($user = get_record_sql("SELECT * FROM {$CFG->prefix}user u
 126                                     INNER JOIN {$CFG->prefix}role_assignments ra ON u.id=ra.userid
 127                                     WHERE u.id={$m[1]} AND ra.contextid = $context->id"))) {
 128             continue;
 129         }
 130         if ($user->timestart) {
 131             $timestart = userdate($user->timestart, $timeformat);
 132         } else {
 133             $timestart = $notavailable;
 134         }
 135         if ($user->timeend) {
 136             $timeend = userdate($user->timeend, $timeformat);
 137         } else {
 138             $timeend = $unlimited;
 139         }
 140         $table->data[] = array(
 141         fullname($user, true),
 142         $timestart,
 143         $timeend . '<input type="hidden" name="userid['.$m[1].']" value="'.$m[1].'" />'
 144         );
 145     }
 146 }
 147 print_table($table);
 148 echo '<div style="width:100%;text-align:center;"><strong>';
 149 echo get_string('extendperiod') . ' ';
 150 choose_from_menu($periodmenu, "extendperiod");
 151 echo ' ' . get_string('startingfrom') . ' ';
 152 choose_from_menu($basemenu, "extendbase", "2", "");
 153 echo '</strong><br />';
 154 echo '<input type="submit" value="'.get_string('savechanges').'" />';
 155 echo '</div></form>';
 156
 157 print_footer($course);
 158 ?>