public static function add($lat, $lng, $radius, $id)
{
$model = Node::firstByAttributes(array('circle_id' => $id));
if (!$model) {
$model = new Node();
}
$model->latitude = $lat;
$model->longitude = $lng;
$model->radius = $radius;
$model->circle_id = $id;
$model->weight = 1;
$model->path_id = 1;
if ($model->save()) {
return TRUE;
}
return FALSE;
}