public function statistik_user_all($id)
 {
     $peminjam = Peminjam::where('id', '=', $id)->select('nama', 'nim/nip')->first();
     $peminjaman = Transaksi::join('alat', 'transaksi.id_alat', '=', 'alat.id')->where('transaksi.id_pengguna', '=', $id)->select(DB::raw('count(*) as y, alat.nama as name'))->groupBy('alat.nama')->get();
     return view('statistik_user', ['statistik_all' => $peminjaman, 'peminjam' => $peminjam]);
 }