function action_default()
{
global $USER, $CURMAN;
$id = required_param('id', PARAM_INT);
$contexts = clone trackpage::get_contexts('block/curr_admin:track:enrol');
//look up student's cluster assignments with necessary capability
$cluster_contexts = cm_context_set::for_user_with_capability('cluster', 'block/curr_admin:track:enrol_cluster_user', $USER->id);
//calculate our filter condition based on cluster accessibility
$cluster_filter = $cluster_contexts->sql_filter_for_context_level('clst.id', 'cluster');
//query for getting tracks based on clusters
$sql = "SELECT trk.id\n FROM {$CURMAN->db->prefix_table(CLSTTABLE)} clst\n JOIN {$CURMAN->db->prefix_table(CLSTTRKTABLE)} clsttrk\n ON clst.id = clsttrk.clusterid\n JOIN {$CURMAN->db->prefix_table(TRACKTABLE)} trk\n ON clsttrk.trackid = trk.id\n WHERE {$cluster_filter}";
//assign the appropriate track ids
$recordset = get_recordset_sql($sql);
if ($recordset && $recordset->RecordCount() > 0) {
if (!isset($contexts->contexts['track'])) {
$contexts->contexts['track'] = array();
}
$new_tracks = array();
while ($record = rs_fetch_next_record($recordset)) {
$new_tracks[] = $record->id;
}
$contexts->contexts['track'] = array_merge($contexts->contexts['track'], $new_tracks);
}
$columns = array('idnumber' => get_string('track_idnumber', 'block_curr_admin'), 'name' => get_string('track_name', 'block_curr_admin'), 'description' => get_string('track_description', 'block_curr_admin'), 'numclasses' => get_string('num_classes', 'block_curr_admin'), 'manage' => '');
$items = usertrack::get_tracks($id);
$formatters = $this->create_link_formatters(array('idnumber', 'name'), 'trackpage', 'trackid');
$this->print_list_view($items, $columns, $formatters, 'tracks');
//get the listing specifically for this user
$this->print_dropdown(track_get_listing('name', 'ASC', 0, 0, '', '', 0, 0, $contexts, $id), $items, 'userid', 'trackid', 'savenew', 'idnumber');
}
