Question

我正在创建一个简单的预订系统，我需要检查汽车是否可用。我要创建一个自定义规则，但存在以下问题：
1.我需要将几个值从表单传递给pass方法：date，time_form，time_to，car_id。第一个和第二个问题很激动，因为;
2.如果必须在几个输入中使用它，我不确定如何在哪里调用该方法。
3.我想我需要创建一个查询来检查汽车是否存在。在纯PHP中，我创建查询，但是我不确定我的“ laravel”样式查询是否正确：

$result = Reservation::where(function ($query) use ($request) {
            $query->whereBetween('time_from', [$request->input('time_from), $request->input('time_to')])
                ->orWhereBetween('time_to', [$request->input('time_from'), $request->input('time_to')]);
               })->where(function ($query) use ($request) {$query
            ->whereBetween($request->input('time_from'), ['time_from','time_to'])
            ->orWhereBetween($request->input('time_to'), ['time_from','time_to']);
               })
            ->where('date',$request->input('date'))
            ->where('car_id',$request->input('car_id'));

和纯PHP

$sql1 = "select * from reservation 
        where ('$time_from' BETWEEN time_from AND time_to or '$time_to' BETWEEN time_from AND time_to) 
        and (time_from BETWEEN '$time_from' AND '$time_to' or time_to BETWEEN '$time_from' AND '$time_to')              
        and car_id = '$car_id'";

我是laravel的新手，所以请您谅解。我正在寻求一些建议。也许是更好的方法。

Answer 1

您可以尝试以下代码：

$result = Reservation::query()
    ->where(function ($query) use ($request) {
        return $query
            ->whereBetween('time_from', [$request->input('time_from'), $request->input('time_to')])
            ->orWhereBetween('time_to', [$request->input('time_from'), $request->input('time_to')]);
    })
    ->where(function ($query) use ($request) {
        return $query
            ->whereRaw($request->input('time_from') . ' BETWEEN time_from AND time_to')
            ->orWhereRaw($request->input('time_to') . ' BETWEEN time_from AND time_to');
    })
    ->where('date', $request->input('date'))
    ->where('car_id', $request->input('car_id'));

laravel基于表单中的多个字段通过查询创建一个规则

1 个答案: