public function yajra_details(Request $request,$id)
    {
        DB::statement(DB::raw('set @rownum=0'));
        $users = M_keluhan_tarif::where('keluhan',$id)->select([
            DB::raw('@rownum  := @rownum  + 1 AS rownum'),
            'harga',
            'nama',
            'created_at',
            'updated_at']);
        $datatables = Datatables::of($users)->editColumn('harga',function($e){
            $dt = $e->harga;
            $dt = number_format($dt,0);
            $dt = 'Rp. '.$dt;
            return $dt;
        });

        if ($keyword = $request->get('search')['value']) {
            $datatables->filterColumn('rownum', 'whereRaw', '@rownum  + 1 like ?', ["%{$keyword}%"]);
        }

        return $datatables->make(true);
    }