function getSessionFilter($label, $field)
{
$analyticsSession = new Analytics_Session();
$analyticsSession->selectAdd();
$analyticsSession->selectAdd("distinct({$field})");
$analyticsSession->find();
$filter = array();
$filter['label'] = $label;
$filter['field'] = $field;
while ($analyticsSession->fetch()) {
if ($analyticsSession->{$field} == null) {
$filter['values']['null'] = 'unset';
} else {
$filter['values'][$analyticsSession->{$field}] = $analyticsSession->{$field};
}
}
natcasesort($filter['values']);
return $filter;
}
