Updated Labels class

Removed unused function
Added assigned() hasMany

app/Models/Labels.php

@@ -43,14 +43,9 @@ class Labels extends Model
         });
     }
 
-    public static function labelsForService(string $service_id)
+    public function assigned()
     {
-        return Cache::remember("labels_for_service.$service_id", now()->addMinute(5), function () use ($service_id) {
-            return DB::table('labels_assigned as l')
-                ->join('labels', 'l.label_id', '=', 'labels.id')
-                ->where('l.service_id', '=', $service_id)
-                ->get(['labels.id', 'labels.label']);
-        });
+        return $this->hasMany(LabelsAssigned::class, 'label_id', 'id');
     }
 
 }