doukuang8166 2014-09-30 06:49
浏览 46
已采纳

我收到Persitent Collection而不是ArrayCollection

I want to see if my record in database has related photos or not. But when I call $car->getCarPhotos() , I get the instance of Doctrine\ORM\PersistentCollection, and var_dump show the same result for car what has photos, and for car what has no car_photos. Where is my problem? Please , help me.

  • 写回答

2条回答 默认 最新

  • douzhong3887 2014-09-30 07:03
    关注

    So what is bothering you? It is supposed to return you collection in both cases. To check whether car has related photos:

    if ($car->getCarPhotos()->isEmpty()) {
        // Car has no photos
    } else {
        // Car has photos
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?

悬赏问题

  • ¥15 微信会员卡等级和折扣规则
  • ¥15 微信公众平台自制会员卡可以通过收款码收款码收款进行自动积分吗
  • ¥15 随身WiFi网络灯亮但是没有网络,如何解决?
  • ¥15 gdf格式的脑电数据如何处理matlab
  • ¥20 重新写的代码替换了之后运行hbuliderx就这样了
  • ¥100 监控抖音用户作品更新可以微信公众号提醒
  • ¥15 UE5 如何可以不渲染HDRIBackdrop背景
  • ¥70 2048小游戏毕设项目
  • ¥20 mysql架构,按照姓名分表
  • ¥15 MATLAB实现区间[a,b]上的Gauss-Legendre积分