user/extendenrol.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', $today), 0, 0, 0);
  18 if ((count($users) > 0) and ($form = data_submitted()) and confirm_sesskey()) {
  19     if (count($form->userid) != count($form->extendperiod) || count($form->userid) != count($form->extendbase)) {
  20         error('Parameters malformation', $CFG->wwwroot.'/user/index.php?id='.$id);
  21     }
  22
  23     foreach ($form->userid as $k => $v) {
  24         // find all roles this student have in this course
  25         if ($students = get_records_sql("SELECT ra.id, ra.roleid, ra.timestart, ra.timeend
  26                                        FROM {$CFG->prefix}role_assignments ra
  27                                        WHERE userid = $v
  28                                        AND contextid = $context->id")) {
  29             // enrol these users again, with time extension
  30             // not that this is not necessarily a student role
  31             foreach ($students as $student) {
  32                 // only extend if the user can make role assignments on this role
  33                 if (user_can_assign($context, $student->roleid)) {
  34                     switch($form->extendperiod[$k]) {
  35                         case 0: // No change
  36                             break;
  37                         case -1: // unlimited
  38                             $student->timeend = 0;
  39                             break;
  40                         default: // extend
  41                             switch($form->extendbase[$k]) {
  42                                 case 0: // course start date
  43                                     $student->timeend = $course->startdate + $form->extendperiod[$k];
  44                                     break;
  45                                 case 1: // student enrolment start date
  46                                     // we check for student enrolment date because Moodle versions before 1.9 did not set this for
  47                                     // unlimited enrolment courses, so it might be 0
  48                                     if($student->timestart > 0) {
  49                                         $student->timeend = $student->timestart + $form->extendperiod[$k];
  50                                     }
  51                                     break;
  52                                 case 2: // student enrolment start date
  53                                     // enrolment end equals 0 means Unlimited, so adding some time to that will still yield Unlimited
  54                                     if($student->timeend > 0) {
  55                                         $student->timeend = $student->timeend + $form->extendperiod[$k];
  56                                     }
  57                                     break;
  58                                 case 3: // current date
  59                                     $student->timeend = $today + $form->extendperiod[$k];
  60                                     break;
  61                                 case 4: // course enrolment start date
  62                                     if($course->enrolstartdate > 0) {
  63                                         $student->timeend = $course->enrolstartdate + $form->extendperiod[$k];
  64                                     }
  65                                     break;
  66                                 case 5: // course enrolment end date
  67                                     if($course->enrolenddate > 0) {
  68                                         $student->timeend = $course->enrolenddate + $form->extendperiod[$k];
  69                                     }
  70                                     break;
  71                             }
  72                     }
  73                     role_assign($student->roleid, $v, 0, $context->id, $student->timestart, $student->timeend, 0);
  74                 }
  75             }
  76         }
  77     }
  78
  79     redirect("$CFG->wwwroot/user/index.php?id=$id", get_string('changessaved'));
  80 }
  81
  82 /// Print headers
  83
  84 $navlinks = array();
  85 $navlinks[] = array('name' => get_string('extendenrol'), 'link' => null, 'type' => 'misc');
  86 $navigation = build_navigation($navlinks);
  87
  88 print_header("$course->shortname: ".get_string('extendenrol'), $course->fullname, $navigation, "", "", true, "&nbsp;", navmenu($course));
  89
  90 $timeformat = get_string('strftimedate');
  91 $unlimited = get_string('unlimited');
  92 $periodmenu[-1] = $unlimited;
  93 for ($i=1; $i<=365; $i++) {
  94     $seconds = $i * 86400;
  95     $periodmenu[$seconds] = get_string('numdays', '', $i);
  96 }
  97
  98 // this will contain all available the based On select options, but we'll disable some on them on a per user basis
  99 $basemenu[0] = get_string('startdate') . ' (' . userdate($course->startdate, $timeformat) . ')';
 100 $basemenu[1] = get_string('enrolmentstart');
 101 $basemenu[2] = get_string('enrolmentend');
 102 if($course->enrollable != 2 || ($course->enrolstartdate == 0 || $course->enrolstartdate <= $today) && ($course->enrolenddate == 0 || $course->enrolenddate > $today)) {
 103     $basemenu[3] = get_string('today') . ' (' . userdate($today, $timeformat) . ')' ;
 104 }
 105 if($course->enrollable == 2) {
 106     if($course->enrolstartdate > 0) {
 107         $basemenu[4] = get_string('courseenrolstartdate') . ' (' . userdate($course->enrolstartdate, $timeformat) . ')';
 108     }
 109     if($course->enrolenddate > 0) {
 110         $basemenu[5] = get_string('courseenrolenddate') . ' (' . userdate($course->enrolenddate, $timeformat) . ')';
 111     }
 112 }
 113
 114 $title = get_string('extendenrol');
 115 print_heading($title . helpbutton('extendenrol', $title, 'moodle', true, false, '', true));
 116 echo "<form method=\"post\" action=\"extendenrol.php\">\n";
 117 echo '<input type="hidden" name="id" value="'.$course->id.'" />';
 118 echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
 119 $table->head  = array (get_string('fullname'), get_string('enrolmentstart'), get_string('enrolmentend'), get_string('extendperiod'), get_string('startingfrom'));
 120 $table->align = array ('left', 'center', 'center', 'center');
 121 $table->width = "600";
 122 $nochange = get_string('nochange');
 123 $notavailable = get_string('notavailable');
 124 foreach ($_POST as $k => $v) {
 125     if (preg_match('/^user(\d+)$/',$k,$m)) {
 126
 127         if (!($user = get_record_sql("SELECT * FROM {$CFG->prefix}user u
 128                                     INNER JOIN {$CFG->prefix}role_assignments ra ON u.id=ra.userid
 129                                     WHERE u.id={$m[1]} AND ra.contextid = $context->id"))) {
 130             continue;
 131         }
 132         $userbasemenu = $basemenu;
 133         if ($user->timestart) {
 134             $timestart = userdate($user->timestart, $timeformat);
 135         } else {
 136             $timestart = $notavailable;
 137             unset($userbasemenu[1]);
 138         }
 139         if ($user->timeend) {
 140             $timeend = userdate($user->timeend, $timeformat);
 141         } else {
 142             $timeend = $unlimited;
 143             unset($userbasemenu[2]);
 144         }
 145         $checkbox = choose_from_menu($periodmenu, "extendperiod[{$m[1]}]", "0", $nochange, '', '0', true);
 146         $checkbox2 = choose_from_menu($userbasemenu, "extendbase[{$m[1]}]", "2", "", '', '0', true);
 147         $table->data[] = array(
 148         fullname($user, true),
 149         $timestart,
 150         $timeend,
 151         '<input type="hidden" name="userid['.$m[1].']" value="'.$m[1].'" />'.$checkbox,
 152         $checkbox2
 153         );
 154     }
 155 }
 156 print_table($table);
 157 echo "\n<div style=\"width:100%;text-align:center;\"><input type=\"submit\" value=\"".get_string('savechanges')."\" /></div>\n</form>\n";
 158
 159 print_footer($course);
 160 ?>