Laravel subquery whereIn - laravel

Question

I have a problem with a query.
I want to make a subquery but it does not return results.
Here is my code :
$distance_representations = Representation::select('id')
->where(DB::raw('round(6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude)))::numeric, 1) < 50'))
->limit(10)
->get();
$representations = Representation::select('id', 'city', DB::raw('round(6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude)))::numeric, 1) < 50'))
->whereIn('id', $distance_representations)
->get();
return view('search', array('representations' => $representations));
PostgreSQL equivalent :
select id, city, round((6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude))))::numeric, 1) as distance
from representations
where id in (
select id
from representations
where round((6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude))))::numeric, 1) < 50
limit 10
)
Thank you

Answer 1

perhaps you can try this
$distance_representations = Representation::find('id')
->where(DB::raw('round(6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude)))::numeric, 1) < 50'))
->limit(10)
->get();
$representations = Representation::all()
->where(DB::raw('round(6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude)))::numeric, 1) < 50'))
->whereIn('id', $distance_representations.id)
->get();
hope this will help you.

Answer 2

I don't see why you need the sub-query? Unless I'm missing something, you should be able to select your data using a single query.
$representations = Representation::selectRaw('id, city, round(6371 * acos(cos(radians(45.0)) * cos(radians(latitude)) * cos(radians(longitude) - radians(2.7)) + sin(radians(45.0)) * sin(radians(latitude)))::numeric, 1) < 50 AS distance')
->where('distance', '<', 50)
->limit(10)
->get();

Answer 3

I found the solution. I can not do better. Thank you.
This solution WORKS !
$representations_with_distance = Representation::select('id', 'city', DB::raw('round(6371 * acos(cos(radians(?)) * cos(radians(latitude)) * cos(radians(longitude) - radians(?)) + sin(radians(?)) * sin(radians(latitude)))::numeric, 1) as distance'));
$representation = DB::table(DB::raw("({$representations_with_distance->toSql()}) as rd"))
->where('distance', '<', '?')
->orderBy('distance')
->offset(0)
->limit(10)
->setBindings([$latitude, $longitude, $latitude, $radius])
->get();
return view('search', array('representations' => $representation));