dongyan5141 2018-10-12 07:06
浏览 202
已采纳

Laravel条件子句用于过滤值

I have a event table with status o or 1.

I have to filter the event with status 1,0 or ALL.

I tried with laravel when conditional clause,its not working with value zero,other conditionals are working.

$status    = Input::get('status');
$events    = DB::table('events')
          ->select('events.*')
          ->when($status, function ($query) use ($status) {
           return $query->where("events.status",$status);
           })
          ->get();
  • 写回答

1条回答 默认 最新

  • dongshou7903 2018-10-12 07:21
    关注

    in_array function used in when method try this one

    because 0(zero) means(false) by default understand so try to use inner function in when method

    if didn't pass status then set default value as 2 or any number but not 0,1 and null

    $status  = Input::has('status') ? Input::get('status') : 2;
    
    $events  = DB::table('events')->select('events.*')
              ->when(in_array($status,[0,1]), function ($query) use ($status) {
                    return $query->where("events.status",$status);
               })->get();
    

    second way create a new function

       function checkStatus($status,$array) {
           if(isset($status)) {
               return in_array($status,$array);
          }
    
          return false;
        }
    
    
    
    $events  = DB::table('events')->select('events.*')
                      ->when(checkStatus($status,[0,1]), function ($query) use ($status) {
                            return $query->where("events.status",$status);
                       })->get();
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥100 set_link_state
  • ¥15 虚幻5 UE美术毛发渲染
  • ¥15 CVRP 图论 物流运输优化
  • ¥15 Tableau online 嵌入ppt失败
  • ¥100 支付宝网页转账系统不识别账号
  • ¥15 基于单片机的靶位控制系统
  • ¥15 真我手机蓝牙传输进度消息被关闭了,怎么打开?(关键词-消息通知)
  • ¥15 装 pytorch 的时候出了好多问题,遇到这种情况怎么处理?
  • ¥20 IOS游览器某宝手机网页版自动立即购买JavaScript脚本
  • ¥15 手机接入宽带网线,如何释放宽带全部速度