_table = 'pichome_onlyofficethumb'; $this->_pk = 'rid'; $this->_pre_cache_key = 'pichome_onlyofficethumb'; $this->_cache_ttl = 3600; parent::__construct(); } public function insert($setarr,$isforce = 0){ $rid = $setarr['rid']; if(DB::result_first("select rid from %t where rid = %s",array($this->_table,$rid))){ if(!$isforce) return $rid; else { parent::delete($rid); return parent::insert($setarr); } }else{ return parent::insert($setarr); } } }