public function on_create()
 {
     parent::on_create();
     $db = DB::getInstance();
     $data = $this->getAttrs();
     $desc = '';
     $desc .= strip_tags($this->description);
     $data['description'] = $desc;
     $data['url'] = $this->getSpiderUrl();
     unset($data['id']);
     $oRef = new ReflectionClass($this->getSpiderClassName());
     $oSpider = $oRef->newInstance($data);
     $oSpider->save();
     $this->spiderID = $oSpider->id;
     $this->save();
 }