hasOne(Goods::class, 'goods_id', 'join_component_master_goods_id') ->select('goods_name', 'goods_market_price', 'goods_sales_price', 'goods_cover'); } public function goods() { return $this->hasOne(Goods::class, 'goods_id', 'join_component_goods_id') ->select('goods_id', 'goods_name', 'goods_market_price', 'goods_sales_price', 'goods_cover','join_goods_supplier_id'); } }