public static function validate($data, $update_id = '')
    {
        var_dump(static::$rules);
        foreach (static::$rules as $field => &$field_rules) {
            $field_rule_array = explode('|', $field_rules);
            foreach ($field_rule_array as &$rule) {
                if(substr($rule, 0, 11) == 'unique_rule') {
                    $rule = str_replace('unique_rule', 'unique', $rule);
                    if (is_numeric($update_id)) {
                        $rule = $rule.','.$field.','.$update_id;
                    }
                }
            }
            $field_rules = implode('|', $field_rule_array);
        }
        echo '<br />';
        var_dump(static::$rules);
    }