// if the current user isn't an admin, redirect to the home page
echo '<ul>';
$portal_teachers = portal_get_all_teachers($_PORTAL['project_info']['project_id']);
// print_r($portal_teachers);
// for each teacher in the current portal
foreach ($portal_teachers as $teacher) {
    echo '<li>' . $teacher['member_first_name'] . " " . $teacher['member_last_name'] . " (" . $teacher['member_id'] . ")" . "</li>";
    $class_ids = portal_get_teacher_classes($teacher['member_id']);
    // for each class that the teacher has
    echo '<ul>';
    foreach ($class_ids as $class_id) {
        $class_activities = portal_get_class_diy_activities($class_id);
        if (count($class_activities) == 0) {
            continue;
        }
        $registered_students = portal_get_class_students($class_id);
        if (count($registered_students) == 0) {
            continue;
        }
        $class = portal_get_class_info($class_id);
        // count the number of students registered
        echo '<li>' . $class['class_name'] . ': ' . count($registered_students) . ' students</li>';
        // count the number of students that have a learner session
        $activity_usage = array();
        foreach ($registered_students as $stu) {
            $used = portal_get_diy_activity_usage_from_db($stu['member_id']);
            foreach ($used as $act_id) {
                if (array_key_exists($act_id, $activity_usage)) {
                    $activity_usage[$act_id]++;
                } else {
                    $activity_usage[$act_id] = 1;
<?php

header('Content-type: application/xml');
$class_uuid = $_PORTAL['action'];
// get the first column of the first row
$class_id = portal_get_class_id($class_uuid);
$students = portal_get_class_students($class_id);
//  print "<!-- \n";
//  print_r($students);
//  print " -->\n";
?>
<otrunk id='<?php 
print "{$class_uuid}";
?>
'>
  <imports>
    <import class='org.concord.framework.otrunk.wrapper.OTObjectSet' />
    <import class='org.concord.otrunk.user.OTUserObject' />
  </imports>
  <objects>
    <OTObjectSet>
      <objects>
      <?php 
foreach ($students as $student) {
    print "<OTUserObject name='" . $student['member_first_name'] . " " . $student['member_last_name'] . "'>\n";
    print "<userDataMap>\n";
    print "<entry key='portal_member_id'><string>" . $student['member_id'] . "</string></entry>\n";
    print "<entry key='diy_member_id'><string>" . $student['diy_member_id'] . "</string></entry>\n";
    print "<entry key='sds_member_id'><string>" . $student['sds_member_id'] . "</string></entry>\n";
    print "<entry key='cc_member_id'><string>" . $student['cc_member_id'] . "</string></entry>\n";
    print "</userDataMap>\n";