各位大神好~
小魯又問問題了...
小魯今天被前輩提醒 Code要好維護 資料跟邏輯要拆分 但小魯腦袋卡住轉不過來想說我已經將PDO用Class包裝 這樣不算拆分嗎?

不知道大神們都是怎麼處理這件事的?
底下是被嫌棄的Code一部分 風格大概都是這樣 想請大神給點建議他他乾淨一點
乾霞QQ

private function Chekdata($jsondata){
        if($jsondata['username']==''){
            $this->SetResult(-1,'帳號為空');
            return false;
        }
        if($jsondata['password']==''){
            $this->SetResult(-1,'密碼為空');
            return false;
        }
        if($jsondata['startcode']==''){
            $this->SetResult(-1,'啟動碼為空');
            return false;
        }
        if($jsondata['machinecode']==''){
            $this->SetResult(-1,'機碼為空');
            return false;
        }
        if(!DBGetter::Get()->Check('member','account',$jsondata['username'])){
            $this->SetResult(1,'錯誤的帳號');
            return false;
        }
        $memberdata = DBGetter::Get()->QueryOne('member','id,password,startcode,used_period','account',$jsondata['username']);
        $Passworder = new DjangoPassworder();
        $this->memberid = $memberdata['id'];
        if(!$Passworder->VerifyPassword( $jsondata['password'],$memberdata['password'] )){
            $this->SetResult(1,'錯誤的密碼');
            return false;
        }
        
        if($memberdata['used_period'] < date("Y-m-d")){
            $this->SetResult(2,'使用期限過期');
            return false;
        }

        if($jsondata['startcode'] !=  $memberdata['startcode'] ){
            $this->SetResult(3,'啟動碼與登入帳戶不符');
            return false;
        }
        
        $sql ="SELECT activate FROM machinecode WHERE code = :code And member_id = $this->memberid";
        $tmp_db =DBGetter::Get()->DB()->prepare($sql);
        $tmp_db->bindParam(":code",$jsondata['machinecode']);
        $tmp_db->execute();
        $machinecode = $tmp_db->fetch(PDO::FETCH_ASSOC);
       
        if(!$machinecode){
            $this->SetResult(4,'機碼與登入帳戶不符');
            return false;
        }

        if($machinecode['activate'] == 0){
            $this->SetResult(5,'該機碼已被禁用');
            return false;
        }
        return true;
    }