function save($id = NULL)
{
if ($_POST) {
$camp = new Camp($id);
$camp->from_array($_POST);
if ($_FILES['map']['name']) {
if ($id) {
$camp->delete_file('uploads/camp', 'map');
}
$camp->map = $camp->upload($_FILES['map'], 'uploads/camp');
}
$camp->save();
set_notify('success', lang('save_data_complete'));
}
redirect('camps');
}