checkTradeBySn($sn); return $this->handleTrade($trade); } protected function handleTrade(TradeModel $trade) { return [ 'sn' => $trade->sn, 'subject' => $trade->subject, 'amount' => $trade->amount, 'channel' => $trade->channel, 'status' => $trade->status, 'create_time' => $trade->create_time, ]; } }