Laravel 5.1获取start_time和end_time之间的行（两个不同的字段）

Question

I've been working on reservation project, I collect request (time_start and time_end) and add 1:30 hour to each so i can prevent user to select conflicts.

I tried using "Between" already but it doesnt seems to work.

->whereBetween('reservation_time_start', [$time_from, $time_to])
->whereBetween('reservation_time_end', [$time_from, $time_to])

I also tried this,

->whereRaw('((reservation_time_end <= ? AND reservation_time_end >= ?) OR (reservation_time_start >= ? AND reservation_time_start <= ?))',[$time_end, $time_start,$time_start, $time_end])

It work but in some cases like between some time range, i dont get any results. Like This.

+----+------------------------+----------------------+
| id | reservation_time_start | reservation_time_end |
+----+------------------------+----------------------+
|  1 | 10:00:00               | 13:00:00             | <- i need to get this
|  2 | 12:00:00               | 14:00:00             |
|  3 | 14:00:00               | 15:00:00             |
+----+------------------------+----------------------+

sample user input's:

$reservation_time_start = 12:00:00 (-1:30 Hour)
$reservation_time_end = 14:00:00 (+ 1:30 hour)

and when i execute my code, it returns null. Please help.

Answer 1

You can use Carbon for your problem,

you have user input times as:

$reservation_time_start = 12:00:00;
$reservation_time_end = 14:00:00;

I suggest you to use date and time, so your user input should be,

$reservation_time_start = 2017-07-18 12:00:00;
$reservation_time_end = 2017-07-18 14:00:00;

Now, parse these times with Carbon. After that add and substract 1:30 hour from end time and start time respectively.

$start_time = Carbon::parse($reservation_time_start)->subMinutes(90);
$end_time = Carbon::parse($reservation_time_end)->addMinutes(90);

After, this you can use simple query like this,

DB::table('reservation')->where(function($query)  
     use($start_time,$end_time){      

         $query->where('reservation_time_start','>',$start_time)
               ->where('reservation_time_start','<',$end_time);
     })
    ->orWhere(function($query) use($start_time,$end_time){   

         $query->where('reservation_time_end','>',$start_time)
               ->where('reservation_time_end','<',$end_time);
    })
    ->get();

From the above query you will get reservations in the given range of time.

Hope you understand.

UPDATE

In your case, You have to consider following cases in reservations.

1. Reservation Starting during given range of time.
2. Reservation Ending during given range of time.
3. Reservation Starting and Ending during given range of time.