Question

在预订时段时，我想检查该插槽是否与任何其他已预订的时段重叠。使用以下查询不正确的相同：

Availability::where('date',date('Y-m-d',strtotime($request->available_date)))
             ->where(function ($query) use($request){
                  $query->whereBetween('start_time', [date("H:i:s", strtotime($request->start_time)), date("H:i:s", strtotime($request->end_time))])
                        ->orWhereBetween('end_time', [date("H:i:s", strtotime($request->start_time)), date("H:i:s", strtotime($request->end_time))]);
              })
              ->get();

提前致谢！

Answer 1

首先，为了能够在查询结束中访问$endTime和use，您需要使用function ($query) use ($startTime, $endTime)结构传递它们，即

$startTime = $request->start_time; 
$endTime = $request->end_time; 

$Availability = Availability::where(function ($query) use ($startTime, $endTime) { 
    $query
    ->where(function ($query) use ($startTime, $endTime) {
        $query
            ->where('start_time', '<=', $startTime)
            ->where('end_time', '>', $startTime);
    })
    ->orWhere(function ($query) use ($startTime, $endTime) {
        $query
            ->where('start_time', '<', $endTime)
            ->where('end_time', '>=', $endTime);
    });
})->count();

尝试如下：

private subject: Subject<any> = new Subject<any>();
public observer: Observable<any>;
constructor() {
    this.observer = this.subject.debounceTime(300).switchMap(// do something);
}

希望这会对你有帮助！

Answer 2

少量修改查询，希望它对所有搜索时隙预订算法的人都适用。

$Availability=  Availability::
                    where(function ($query) use ($start_time, $end_time) { 
                        $query
                           ->whereBetween('start_time', [$start_time, $end_time])
                           ->orWhere(function ($query) use ($start_time, $end_time) {
                                    $query
                                        ->whereBetween('end_time', [$start_time, $end_time]);
                                });
                     })->count();

检查重叠时隙以进行laravel查询

2 个答案: