public function get_get()
    {
        // $sekolah_datas list ALL data sekolah
        // $sekolah_data per satu sekolah

        $sekolah_datas = $this->model_gtech->get_daftar_sekolah();
        $id = $this->get('id');

        if ($id === null) {
            if ($sekolah_datas) {
                $this->response($sekolah_datas, 200);
            }

            else {
                $this->response([
                    'status' => false,
                    'message' => 'No daftar sekolah were found'
                ], 404);
            }
        }

        $id = (int) $id;

        if ($id <= 0) {
            $this->response(null, 400);
        }

        $sekolah_data = null;

        if (!empty($sekolah_datas)) {
            foreach ($sekolah_datas as $key => $value) {
                if (isset($value['id']) && $value['id'] == $id) {
                    $sekolah_data = $value;
                }
            }
        }

        if (!empty($sekolah_data)) {
            $this->set_response($sekolah_data, 200);
        }

        else {
            $this->set_response([
                'status' => false,
                'message' => 'Data sekolah could not be found'
            ], 404);
        }
    }