主模型
<?php
namespace app\home\model;

use think\Model;
use think\facade\Request;
use think\Db;
class Goods extends Model
{
protected $pk = 'id';

public function goodsInfo()
{
return $this->hasOne('GoodsInfo','goods_id')->bind([
'id'=>'goods_info_id',
'pic',
'content',
]);
}
}
控制器
$model = new \app\home\model\Goods;
//设置默认封面图 TODO
$param_data['cover'] = $cover;
//客服信息
$param_data['kf'] = json_encode($kf);

$model->content = $param['content'];
$model->pic = json_encode($param['pic']);

$status = $model->goodsInfo()->save($param_data);
5.1 一对一关联写入，提示 类的属性不存在:app\home\model\Goods->id 是什么情况 ，谁能给指点一下