From b25dcf02dcb02a4505bc87dce5e6bbf6cef11367 Mon Sep 17 00:00:00 2001
From: R <rajif@sismedika.com>
Date: Sat, 17 Sep 2022 10:02:37 +0700
Subject: [PATCH] Change Distance Calculation to cosinus

---
 .../Linksehat/Http/Controllers/Api/HospitalController.php    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Modules/Linksehat/Http/Controllers/Api/HospitalController.php b/Modules/Linksehat/Http/Controllers/Api/HospitalController.php
index 38a0b246..3923fd62 100644
--- a/Modules/Linksehat/Http/Controllers/Api/HospitalController.php
+++ b/Modules/Linksehat/Http/Controllers/Api/HospitalController.php
@@ -31,10 +31,11 @@ class HospitalController extends Controller
             });
             $hospitals->select([
                 "organizations.*",
-                DB::raw("ST_Distance_Sphere(point(addresses.lng,addresses.lat), point(".$request->lng.",".$request->lat.")) /1000 as distance_km")
+                // DB::raw("ST_Distance_Sphere(point(addresses.lng,addresses.lat), point(".$request->lng.",".$request->lat.")) /1000 as distance_km"),
+                DB::raw("6371 * acos (cos ( radians($request->lat) ) * cos( radians( addresses.lat ) ) * cos( radians( addresses.lng ) - radians($request->lng) ) + sin ( radians($request->lat) ) * sin( radians( addresses.lat ) )) as distance_km")
             ]);
             
-            $hospitals->orderBy('distance_km', 'desc');
+            $hospitals->orderBy('distance_km', 'asc');
         } else {
             $hospitals->orderBy('organizations.name', 'asc');
         }