/**
  * Display a listing of the resource.
  *
  * @return \Illuminate\Http\Response
  */
 public function index(Request $request)
 {
     //
     $operator = $request->input('operator', '');
     $bdate = $request->input('bdate', '');
     $edate = $request->input('edate', '');
     $key = $request->input('key', '');
     $users = User::all();
     $logs = Log::operator($operator)->key($key)->between($bdate, $edate)->recent()->paginate(15);
     return view('log.index', array('operator' => $operator, 'bdate' => $bdate, 'edate' => $edate, 'key' => $key, 'logs' => $logs, 'users' => $users));
 }