public function updateScript()
 {
     $tutors = Tutor::all();
     foreach ($tutors as $tutor) {
         if ($tutor->districts != null) {
             $districts = explode(',', $tutor->districts);
             foreach ($districts as $district) {
                 TutorDistrict::firstOrCreate(['tutor_id' => $tutor->id, 'district_id' => $district]);
             }
         }
     }
     return "Done";
 }