Nearest Laravel stores

Question

I am trying to get a neraby store in Laravel 5.1 I have a geocoding parser that caluclate coorinate. But I have a problem with haversine formulas. Basically, I need to take neighboring stores from the Aziende (Stores) table, taking into account lat, the long category of e transmitted via the URL.

I am trying to use this code:

$dove = Input::get('dove');
    $categoria_id = Input::get('id_categoria');
    // 4: check if any matches found in the database table 
    if (!empty($dove)) {
        $response = \GoogleMaps::load('geocoding')->setParamByKey ('address', $dove)->get();
        $response = json_decode($response, true);
        $latitude = $response['results'][0]['geometry']['location']['lat'];
        $longitude = $response['results'][0]['geometry']['location']['lng'];
        $radius = '5';
        $aziende  = DB::table('aziende')
            ->select(
                 ( 'lat * acos( cos( radians(50) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians(-122) )
                       + sin( radians(37) ) * sin( radians( lat ) ) ) as distance') )->get();




    } else {
    $aziende = DB::table("aziende")->where('categoria', $categoria_id)->get();
 }
 ?>

Answer 1

The following should work for you to implement the haversine formula in your SQL query. My answer assumes that you have a model matching the database table "aziende".

$lat = floatval($response['results'][0]['geometry']['location']['lat']);
$lng = floatval($response['results'][0]['geometry']['location']['lng']);
$radius = 5;
$distance = DB::raw("*, ( 6371 * acos( cos( radians($lat) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians($lng) ) + sin( radians($lat) ) * sin( radians( lat ) ) ) ) AS distance");
$aziende = Aziende::select($distance)->orderBy('distance')->where('distance', '<=', $radius)->get();