user/extendenrol.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This file is part of the User section Moodle
  20  *
  21  * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package user
  24  */
  25
  26 require_once("../config.php");
  27
  28 $id    = required_param('id', PARAM_INT);              // course id
  29 $users = optional_param('userid', array(), PARAM_INT); // array of user id
  30
  31 $PAGE->set_url('/user/extendenrol.php', array('id'=>$id));
  32
  33 if (! $course = $DB->get_record('course', array('id'=>$id))) {
  34     print_error('invalidcourseid');
  35 }
  36
  37 $context = get_context_instance(CONTEXT_COURSE, $id);
  38 require_login($course->id);
  39
  40 // to extend enrolments current user needs to be able to do role assignments
  41 require_capability('moodle/role:assign', $context);
  42 $today = time();
  43 $today = make_timestamp(date('Y', $today), date('m', $today), date('d', $today), 0, 0, 0);
  44 if ((count($users) > 0) and ($form = data_submitted()) and confirm_sesskey()) {
  45     if (count($form->userid) != count($form->extendperiod) || count($form->userid) != count($form->extendbase)) {
  46         print_error('invalidformdata', '', $CFG->wwwroot.'/user/index.php?id='.$id);
  47     }
  48
  49     foreach ($form->userid as $k => $v) {
  50         // find all roles this student have in this course
  51         if ($students = $DB->get_records_sql("SELECT ra.id, ra.roleid, ra.timestart, ra.timeend
  52                                                 FROM {role_assignments} ra
  53                                                WHERE userid = ?
  54                                                      AND contextid = ?", array($v, $context->id))) {
  55             // enrol these users again, with time extension
  56             // not that this is not necessarily a student role
  57             foreach ($students as $student) {
  58                 // only extend if the user can make role assignments on this role
  59                 if (user_can_assign($context, $student->roleid)) {
  60                     switch($form->extendperiod[$k]) {
  61                         case 0: // No change
  62                             break;
  63                         case -1: // unlimited
  64                             $student->timeend = 0;
  65                             break;
  66                         default: // extend
  67                             switch($form->extendbase[$k]) {
  68                                 case 0: // course start date
  69                                     $student->timeend = $course->startdate + $form->extendperiod[$k];
  70                                     break;
  71                                 case 1: // student enrolment start date
  72                                     // we check for student enrolment date because Moodle versions before 1.9 did not set this for
  73                                     // unlimited enrolment courses, so it might be 0
  74                                     if($student->timestart > 0) {
  75                                         $student->timeend = $student->timestart + $form->extendperiod[$k];
  76                                     }
  77                                     break;
  78                                 case 2: // student enrolment start date
  79                                     // enrolment end equals 0 means Unlimited, so adding some time to that will still yield Unlimited
  80                                     if($student->timeend > 0) {
  81                                         $student->timeend = $student->timeend + $form->extendperiod[$k];
  82                                     }
  83                                     break;
  84                                 case 3: // current date
  85                                     $student->timeend = $today + $form->extendperiod[$k];
  86                                     break;
  87                                 case 4: // course enrolment start date
  88                                     if($course->enrolstartdate > 0) {
  89                                         $student->timeend = $course->enrolstartdate + $form->extendperiod[$k];
  90                                     }
  91                                     break;
  92                                 case 5: // course enrolment end date
  93                                     if($course->enrolenddate > 0) {
  94                                         $student->timeend = $course->enrolenddate + $form->extendperiod[$k];
  95                                     }
  96                                     break;
  97                             }
  98                     }
  99                     role_assign($student->roleid, $v, 0, $context->id, $student->timestart, $student->timeend, 0);
 100                 }
 101             }
 102         }
 103     }
 104
 105     redirect("$CFG->wwwroot/user/index.php?id=$id", get_string('changessaved'));
 106 }
 107
 108 /// Print headers
 109
 110 $PAGE->navbar->add(get_string('extendenrol'));
 111 $PAGE->set_title("$course->shortname: ".get_string('extendenrol'));
 112 $PAGE->set_heading( $course->fullname);
 113
 114 echo $OUTPUT->header();
 115
 116 $timeformat = get_string('strftimedate');
 117 $unlimited = get_string('unlimited');
 118 $periodmenu[-1] = $unlimited;
 119 for ($i=1; $i<=365; $i++) {
 120     $seconds = $i * 86400;
 121     $periodmenu[$seconds] = get_string('numdays', '', $i);
 122 }
 123
 124 // this will contain all available the based On select options, but we'll disable some on them on a per user basis
 125 $basemenu[0] = get_string('startdate') . ' (' . userdate($course->startdate, $timeformat) . ')';
 126 $basemenu[1] = get_string('enrolmentstart');
 127 $basemenu[2] = get_string('enrolmentend');
 128 if($course->enrollable != 2 || ($course->enrolstartdate == 0 || $course->enrolstartdate <= $today) && ($course->enrolenddate == 0 || $course->enrolenddate > $today)) {
 129     $basemenu[3] = get_string('today') . ' (' . userdate($today, $timeformat) . ')' ;
 130 }
 131 if($course->enrollable == 2) {
 132     if($course->enrolstartdate > 0) {
 133         $basemenu[4] = get_string('courseenrolstartdate') . ' (' . userdate($course->enrolstartdate, $timeformat) . ')';
 134     }
 135     if($course->enrolenddate > 0) {
 136         $basemenu[5] = get_string('courseenrolenddate') . ' (' . userdate($course->enrolenddate, $timeformat) . ')';
 137     }
 138 }
 139
 140 $title = get_string('extendenrol');
 141 echo $OUTPUT->heading($title . $OUTPUT->old_help_icon('extendenrol', $title));
 142 echo "<form method=\"post\" action=\"extendenrol.php\">\n";
 143 echo '<input type="hidden" name="id" value="'.$course->id.'" />';
 144 echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
 145 $table = new html_table();
 146 $table->head  = array (get_string('fullnameuser'), get_string('enrolmentstart'), get_string('enrolmentend'), get_string('extendperiod'), get_string('startingfrom'));
 147 $table->align = array ('left', 'center', 'center', 'center');
 148 $table->width = "600";
 149 $nochange = get_string('nochange');
 150 $notavailable = get_string('notavailable');
 151 foreach ($_POST as $k => $v) {
 152     if (preg_match('/^user(\d+)$/',$k,$m)) {
 153
 154         if (!($user = $DB->get_record_sql("SELECT *
 155                                              FROM {user} u
 156                                              JOIN {role_assignments} ra ON u.id=ra.userid
 157                                             WHERE u.id=? AND ra.contextid = ?", array($m[1], $context->id)))) {
 158             continue;
 159         }
 160         $userbasemenu = $basemenu;
 161         if ($user->timestart) {
 162             $timestart = userdate($user->timestart, $timeformat);
 163         } else {
 164             $timestart = $notavailable;
 165             unset($userbasemenu[1]);
 166         }
 167         if ($user->timeend) {
 168             $timeend = userdate($user->timeend, $timeformat);
 169         } else {
 170             $timeend = $unlimited;
 171             unset($userbasemenu[2]);
 172         }
 173
 174         $checkbox = html_writer::select($periodmenu, "extendperiod[{$m[1]}]", "0", array('0'=>$nochange));
 175         $checkbox2 = html_writer::select($userbasemenu, "extendbase[{$m[1]}]", "2", false);
 176         $table->data[] = array(
 177                 fullname($user, true),
 178                 $timestart,
 179                 $timeend,
 180                 '<input type="hidden" name="userid['.$m[1].']" value="'.$m[1].'" />'.$checkbox,
 181                 $checkbox2);
 182     }
 183 }
 184 echo html_writer::table($table);
 185 echo "\n<div style=\"width:100%;text-align:center;\"><input type=\"submit\" value=\"".get_string('savechanges')."\" /></div>\n</form>\n";
 186
 187 echo $OUTPUT->footer();
 188