screen/application/common/model/GoodsSku.php

<?php

namespace app\common\model;

use app\common\validate\KillService;
use think\db\Query;
use think\Model;

/**
 * 邮箱验证码
 */
class GoodsSku Extends Model
{
    public function scopeShow(Query $query){
        $query->where('is_del',0);
    }
    public function bindGoods(){
        return $this->belongsToMany(Goods::class,GoodsBind::class,'bind_goods_id','goods_sku_id');
    }
    public function bindSku(){
        return $this->belongsToMany(GoodsSku::class,GoodsBind::class,'bind_goods_sku_id','goods_sku_id');
    }
    public function binds(){
        return $this->hasMany(GoodsBind::class);
    }
    public static function show(){
        return self::where('is_del',0);
    }
    public function goods(){
        return $this->belongsTo(Goods::class);
    }

    public function getRealAmount(){
        $open=KillService::open();
        if($open){
            return $this['amount_kill'];
        }
        return $this['amount'];
    }

    public function getAmountAttr($amount){
        return $this->getRealAmount();
    }


    protected static function init()
    {
        self::afterDelete(function (self $sku){
            GoodsCart::where('goods_sku_id',$sku['id'])->delete();
            GoodsBind::where('goods_sku_id',$sku['id'])->delete();
            GoodsBind::where('bind_goods_sku_id',$sku['id'])->delete();
            GoodsInstallLink::where('goods_sku_id',$sku['id'])->delete();
            Favourite::where('goods_sku_id',$sku['id'])->delete();
        });
    }
}