public function add($data = null)
{
//新增一筆資料進資料庫
if (is_null($data) || !is_array($data)) {
$data = $this->dumpAll();
} else {
$param = self::getParams(get_called_class());
$this->updateData($data, $param);
$data = $this->dumpAll();
}
//新增前要先對資料做驗證(validation)，然後再做校正(sanitization)
/*$changed = filter_var_array($changed, $param);
if(in_array(null, $changed, true)) {
$key = array_search(null, $changed, true);
alert("缺乏欄位資訊:".$key);
}*/
$this->validate($data);
$this->sanitize($data);
//alert($this->wrapInsertSQL(self::$tablename, $changed));
DBC::query(DBC::wrapInsertSQL($this->tablename, $data));
}
