媒体设置 ​

// 更新当前商品的轮播图
public function updateBanners(){
	// 删除之前
	$goods_id = request()->Model->id;
	request()->Model->goodsBanner()->where([
		'goods_id'=>$goods_id
	])->delete();
	$banners = request()->param('banners');
	$data = array_map(function($item) use($goods_id){
		return [
			'url'=>$item,
			'goods_id'=>$goods_id
		];
	},$banners);
	$res = request()->Model->goodsBanner()->saveAll($data);
	return showSuccess($res);
}

// 验证规则
protected $rule = [
    // ...
    'id'=>'require|integer|>:0|isExist:Goods',
	'banners'=>'require|array',
    // ...
];

protected $scene = [
    // ...
    'updateBanners'=>['id','banners'],
];

Route::post('goods/banners/:id','admin.Goods/updateBanners');