cache

    public function json($table)
    {
        if ($table != 'kecamatan') {
            $layer = Layer::where('name', $table)->firstOrFail();
        }

        $alist = 'id';

        if (in_array($table, ['bangunan', 'daerah_irigasi', 'eksisting_di', 'saluran', 'titik_kerusakan'])) {
            $alist = implode(',', json_decode($layer->info));
        }

        // Cache::flush();

        if (Cache::has($table)) {
            $result = Cache::get($table);
        } else {
            $result = DB::select("SELECT row_to_json(fc) AS geojson FROM ( SELECT 'FeatureCollection' AS type, array_to_json(array_agg(f)) AS features FROM ( SELECT 'Feature' AS type, ST_AsGeoJSON(lg.geom)::json AS geometry, row_to_json(( SELECT l FROM (SELECT $alist) AS l )) AS properties FROM $table AS lg ) AS f ) AS fc");
            Cache::forever($table, $result);
        }

        return response($result[0]->geojson)->header('Content-Type', 'application/json');
    }