如何在PHP / laravel中查询两次之间的时隙

时间:2018-09-22 10:42:25

标签: php laravel

我需要这种逻辑的帮助,我希望用户在选择日期并申请表格时创建约会,但是如果用户在页面上花费大量时间,而其他人在他之前预订了确定日期,他需要查看错误并返回以选择一个日期。

这是我的查询

 $result = Appointment::where('user_id', $post['user_id'])
 ->where('appointment_datetime', $post['bookingdate'] )
 ->whereBetween('appointment_time_start', [$begintime, $endtime])
 ->WhereBetween('appointment_time_end', [$begintime, $endtime])->get();


if ($result->isEmpty()) { /// Insert to database ///}

else { /// return back()->with('msg', 1); /// }

好像我想从12:00到13:00预约
我在数据库中有一个从11:00到13:00的约会,查询未检测到它。

如果我有12:00至14:00,则查询未检测到它。

有人可以告诉我我的查询出了什么问题,谢谢!!

1 个答案:

答案 0 :(得分:1)

我的想法是,您可以在相关日期进行应用程序级别的约会。

首先,我更喜欢使用Carbon包装。如果没有,可以安装。

$appointments = Appointment::where('user_id', $post['user_id'])
                           ->where('appointment_datetime', $post['bookingdate'])
                            ->get();

$foundFlag = false;
if ($appointments->count() > 0) {
    $beginDate = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $begintime); // You can be add at the end of varible ":00" if not exists
    $endDate = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $endtime); //You can be add at the end of varible ":00" if not exists
    foreach($appointments as $appointment){
        $beginDateForCurrenAppointment = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $appointment->appointment_time_start); // You can be add at the end of varible ":00" if not exists

        $endDateForCurrenAppointment = \Carbon\Carbon::create(date('Y-m-d') . ' ' . $appointment->appointment_time_end); // You can be add at the end of varible ":00" if not exists


        if ($beginDateForCurrenAppointment->between($beginDate, $endDate, true) || $endDateForCurrenAppointment->between($beginDate, $endDate, true) || $beginDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true) || $endDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)) {
            $foundFlag = true;
            break;
        }
    }
}

if (! $foundFlag) {
    // Insert Database
} else {
    /// return back()->with('msg', 1); ///
}

if语句中的每个逻辑均表示:

如果两者之间的请求约会存在约会开始时间:

$beginDateForCurrenAppointment->between($beginDate, $endDate, true)

如果两者之间的请求约会存在约会结束时间:

$endDateForCurrenAppointment->between($beginDate, $endDate, true)

如果在请求的约会开始时间之间存在约会:

$beginDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)

如果在请求的约会结束时间之间存在约会:

$endDate->between($beginDateForCurrenAppointment, $endDateForCurrenAppointment, true)