fastadmin 重写后台edit方法

/**
     * 编辑
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        //原数据
        $rowdata = $this->model->get($ids)->toArray();

        if ($this->request->isPost()) {
            //表单提交的数据
            $data = $this->request->post();
            $model = new WithdrawModel;
            $model->allowField(true)->save($data, ['id' => $rowdata['id']]);
            
            $this->success();

        }else{
             return parent::edit($ids);
        }

    }