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extendenrol.php
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<?php // $Id$
require_once("../config.php");
$id = required_param('id', PARAM_INT); // course id
$users = optional_param('userid', array(), PARAM_INT); // array of user id
if (! $course = get_record('course', 'id', $id)) {
print_error("Course ID is incorrect");
}
$context = get_context_instance(CONTEXT_COURSE, $id);
require_login($course->id);
// to extend enrolments current user needs to be able to do role assignments
require_capability('moodle/role:assign', $context);
$today = time();
$today = make_timestamp(date('Y', $today), date('m', $today), date('d', $today), 0, 0, 0);
if ((count($users) > 0) and ($form = data_submitted()) and confirm_sesskey()) {
if (count($form->userid) != count($form->extendperiod) || count($form->userid) != count($form->extendbase)) {
print_error('Parameters malformation', '', $CFG->wwwroot.'/user/index.php?id='.$id);
}
foreach ($form->userid as $k => $v) {
// find all roles this student have in this course
if ($students = get_records_sql("SELECT ra.id, ra.roleid, ra.timestart, ra.timeend
FROM {$CFG->prefix}role_assignments ra
WHERE userid = $v
AND contextid = $context->id")) {
// enrol these users again, with time extension
// not that this is not necessarily a student role
foreach ($students as $student) {
// only extend if the user can make role assignments on this role
if (user_can_assign($context, $student->roleid)) {
switch($form->extendperiod[$k]) {
case 0: // No change
break;
case -1: // unlimited
$student->timeend = 0;
break;
default: // extend
switch($form->extendbase[$k]) {
case 0: // course start date
$student->timeend = $course->startdate + $form->extendperiod[$k];
break;
case 1: // student enrolment start date
// we check for student enrolment date because Moodle versions before 1.9 did not set this for
// unlimited enrolment courses, so it might be 0
if($student->timestart > 0) {
$student->timeend = $student->timestart + $form->extendperiod[$k];
}
break;
case 2: // student enrolment start date
// enrolment end equals 0 means Unlimited, so adding some time to that will still yield Unlimited
if($student->timeend > 0) {
$student->timeend = $student->timeend + $form->extendperiod[$k];
}
break;
case 3: // current date
$student->timeend = $today + $form->extendperiod[$k];
break;
case 4: // course enrolment start date
if($course->enrolstartdate > 0) {
$student->timeend = $course->enrolstartdate + $form->extendperiod[$k];
}
break;
case 5: // course enrolment end date
if($course->enrolenddate > 0) {
$student->timeend = $course->enrolenddate + $form->extendperiod[$k];
}
break;
}
}
role_assign($student->roleid, $v, 0, $context->id, $student->timestart, $student->timeend, 0);
}
}
}
}
redirect("$CFG->wwwroot/user/index.php?id=$id", get_string('changessaved'));
}
/// Print headers
$navlinks = array();
$navlinks[] = array('name' => get_string('extendenrol'), 'link' => null, 'type' => 'misc');
$navigation = build_navigation($navlinks);
print_header("$course->shortname: ".get_string('extendenrol'), $course->fullname, $navigation, "", "", true, " ", navmenu($course));
$timeformat = get_string('strftimedate');
$unlimited = get_string('unlimited');
$periodmenu[-1] = $unlimited;
for ($i=1; $i<=365; $i++) {
$seconds = $i * 86400;
$periodmenu[$seconds] = get_string('numdays', '', $i);
}
// this will contain all available the based On select options, but we'll disable some on them on a per user basis
$basemenu[0] = get_string('startdate') . ' (' . userdate($course->startdate, $timeformat) . ')';
$basemenu[1] = get_string('enrolmentstart');
$basemenu[2] = get_string('enrolmentend');
if($course->enrollable != 2 || ($course->enrolstartdate == 0 || $course->enrolstartdate <= $today) && ($course->enrolenddate == 0 || $course->enrolenddate > $today)) {
$basemenu[3] = get_string('today') . ' (' . userdate($today, $timeformat) . ')' ;
}
if($course->enrollable == 2) {
if($course->enrolstartdate > 0) {
$basemenu[4] = get_string('courseenrolstartdate') . ' (' . userdate($course->enrolstartdate, $timeformat) . ')';
}
if($course->enrolenddate > 0) {
$basemenu[5] = get_string('courseenrolenddate') . ' (' . userdate($course->enrolenddate, $timeformat) . ')';
}
}
$title = get_string('extendenrol');
print_heading($title . helpbutton('extendenrol', $title, 'moodle', true, false, '', true));
echo "<form method=\"post\" action=\"extendenrol.php\">\n";
echo '<input type="hidden" name="id" value="'.$course->id.'" />';
echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
$table->head = array (get_string('fullnameuser'), get_string('enrolmentstart'), get_string('enrolmentend'), get_string('extendperiod'), get_string('startingfrom'));
$table->align = array ('left', 'center', 'center', 'center');
$table->width = "600";
$nochange = get_string('nochange');
$notavailable = get_string('notavailable');
foreach ($_POST as $k => $v) {
if (preg_match('/^user(\d+)$/',$k,$m)) {
if (!($user = get_record_sql("SELECT * FROM {$CFG->prefix}user u
INNER JOIN {$CFG->prefix}role_assignments ra ON u.id=ra.userid
WHERE u.id={$m[1]} AND ra.contextid = $context->id"))) {
continue;
}
$userbasemenu = $basemenu;
if ($user->timestart) {
$timestart = userdate($user->timestart, $timeformat);
} else {
$timestart = $notavailable;
unset($userbasemenu[1]);
}
if ($user->timeend) {
$timeend = userdate($user->timeend, $timeformat);
} else {
$timeend = $unlimited;
unset($userbasemenu[2]);
}
$checkbox = choose_from_menu($periodmenu, "extendperiod[{$m[1]}]", "0", $nochange, '', '0', true);
$checkbox2 = choose_from_menu($userbasemenu, "extendbase[{$m[1]}]", "2", "", '', '0', true);
$table->data[] = array(
fullname($user, true),
$timestart,
$timeend,
'<input type="hidden" name="userid['.$m[1].']" value="'.$m[1].'" />'.$checkbox,
$checkbox2
);
}
}
print_table($table);
echo "\n<div style=\"width:100%;text-align:center;\"><input type=\"submit\" value=\"".get_string('savechanges')."\" /></div>\n</form>\n";
print_footer($course);
?>