function attendanceStatistics()
{
$attending = $this->getAttendance();
global $CONFIG, $Controller;
if (!is_array($ig = $this->attending_groups)) {
$ig = array();
}
$counter = array('yes' => array(), 'no' => array());
$tcounter = array('yes' => 0, 'no' => 0);
foreach ($attending as $id => $a) {
++$tcounter[$a['attending']];
}
$unknown = array();
foreach ($ig as $gid) {
$group = $Controller->get($gid, OVERRIDE);
$counter['yes'][$group->Name] = 0;
$counter['no'][$group->Name] = 0;
$unknown[$group->Name] = count($group->memberUsers(true, true));
if ($group) {
foreach ($attending as $id => $a) {
if ($group->isMember($id)) {
$counter[$a['attending']][$group->ID] = @$counter[$group->Name] + 1;
--$unknown[$group->Name];
}
}
}
}
$colspan = 2 * count($ig) + 1;
$r = '<table cellpadding="0" cellspacing="0" border="0">' . '<tr><th>' . __('Contact') . '</th>' . '<td colspan="' . $colspan . '">' . $this->contact . '</td>' . '</tr>' . '<tr><th>' . __('When') . '</th>' . '<td colspan="' . $colspan . '">' . Short::datespan($this->start, $this->end) . '</td>' . '</tr>' . '<tr><th>' . __('Last registration date') . '</th>' . '<td colspan="' . $colspan . '">' . date('Y-m-d', $this->soft_deadline) . '</td>' . '</tr>' . '<tr><th>' . __('Attending') . '</th>' . '<td>' . $tcounter['yes'] . '</td>';
ksort($counter['yes']);
foreach ($counter['yes'] as $g => $count) {
$r .= '<td class="groupcol">' . $g . '</td><td>' . $count . '</td>';
}
$r .= '</tr><tr><th>' . __('Not attending') . '</th>' . '<td>' . $tcounter['no'] . '</td>';
ksort($counter['no']);
foreach ($counter['no'] as $g => $count) {
$r .= '<td class="groupcol">' . $g . '</td><td>' . $count . '</td>';
}
$r .= '</tr><tr><th>' . __('Unknown') . '</th>' . '<td>' . array_sum($unknown) . '</td>';
ksort($unknown);
foreach ($unknown as $g => $count) {
$r .= '<td class="groupcol">' . $g . '</td><td>' . $count . '</td>';
}
$r .= '</tr></table>';
return $r;
}
