Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php | ||
| 11 | class DashboardController extends Controller | ||
| 12 | { | ||
| 13 | |||
| 14 | use Helpers; | ||
| 15 | |||
| 16 | public function __construct() | ||
| 19 | |||
| 20 | /** | ||
| 21 | * Display a listing of all authorized devices | ||
| 22 | * | ||
| 23 | * @return \Illuminate\Http\Response | ||
| 24 | */ | ||
| 25 | public function index(Request $request) | ||
| 26 |     { | ||
| 27 | $dashboards = Dashboard::allAvailable($request->user())->get(); | ||
|  | |||
| 28 | return $dashboards; | ||
| 29 | } | ||
| 30 | |||
| 31 | /** | ||
| 32 | * Show the form for creating a new resource. | ||
| 33 | * | ||
| 34 | * @return \Illuminate\Http\Response|null | ||
| 35 | */ | ||
| 36 | public function create(Request $request) | ||
| 40 | |||
| 41 | /** | ||
| 42 | * Store a newly created resource in storage. | ||
| 43 | * | ||
| 44 | * @param \Illuminate\Http\Request $request | ||
| 45 | * @return \Illuminate\Http\Response | ||
| 46 | */ | ||
| 47 | public function store(Request $request) | ||
| 78 | |||
| 79 | /** | ||
| 80 | * Display the specified resource. | ||
| 81 | * | ||
| 82 | * @param int $id | ||
| 83 | * @return \Illuminate\Http\Response | ||
| 84 | */ | ||
| 85 | public function show(Request $request, $id) | ||
| 92 | |||
| 93 | /** | ||
| 94 | * Show the form for editing the specified resource. | ||
| 95 | * | ||
| 96 | * @param int $id | ||
| 97 | * @return \Illuminate\Http\Response | ||
| 98 | */ | ||
| 99 | public function edit($id) | ||
| 103 | |||
| 104 | /** | ||
| 105 | * Update the specified resource in storage. | ||
| 106 | * | ||
| 107 | * @param \Illuminate\Http\Request $request | ||
| 108 | * @param int $id | ||
| 109 | * @return \Illuminate\Http\Response | ||
| 110 | */ | ||
| 111 | public function update(Request $request, $id) | ||
| 112 |     { | ||
| 113 | $validation = Validator::make($request->all(), [ | ||
| 114 | 'name' => 'required|max:255', | ||
| 115 | 'access' => 'required', | ||
| 116 | ]); | ||
| 117 |         if ($validation->passes()) { | ||
| 118 | $dashboard = Dashboard::find($id); | ||
| 119 | $dashboard->dashboard_name = $request->name; | ||
| 120 | $dashboard->access = $request->access; | ||
| 121 |             if ($dashboard->save()) { | ||
| 122 |                 return $this->response->array(array('statusText' => 'OK')); | ||
| 123 |             } else { | ||
| 124 | return $this->response->errorInternal(); | ||
| 125 | } | ||
| 126 |         } else { | ||
| 127 | $errors = $validation->errors(); | ||
| 128 | return response()->json($errors, 422); | ||
| 129 | } | ||
| 130 | } | ||
| 131 | |||
| 132 | /** | ||
| 133 | * Remove the specified resource from storage. | ||
| 134 | * | ||
| 135 | * @param int $id | ||
| 136 | * @return \Illuminate\Http\Response | ||
| 137 | */ | ||
| 138 | public function destroy(Request $request, $id) | ||
| 150 | |||
| 151 | public function clear($id) | ||
| 159 | } | ||
| 160 | 
It seems like the method you are trying to call exists only in some of the possible types.
Let’s take a look at an example:
Available Fixes
Add an additional type-check:
Only allow a single type to be passed if the variable comes from a parameter: