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 |
||
23 | class JenisPrestasiController extends Controller |
||
24 | { |
||
25 | /** |
||
26 | * Create a new controller instance. |
||
27 | * |
||
28 | * @return void |
||
29 | */ |
||
30 | protected $jenis_prestasi; |
||
31 | protected $user; |
||
32 | |||
33 | public function __construct(JenisPrestasi $jenis_prestasi, User $user) |
||
38 | |||
39 | /** |
||
40 | * Display a listing of the resource. |
||
41 | * |
||
42 | * @return \Illuminate\Http\Response |
||
43 | */ |
||
44 | public function index(Request $request) |
||
45 | { |
||
46 | if (request()->has('sort')) { |
||
47 | list($sortCol, $sortDir) = explode('|', request()->sort); |
||
48 | |||
49 | $query = $this->jenis_prestasi->orderBy($sortCol, $sortDir); |
||
50 | } else { |
||
51 | $query = $this->jenis_prestasi->orderBy('id', 'asc'); |
||
52 | } |
||
53 | |||
54 | if ($request->exists('filter')) { |
||
55 | $query->where(function($q) use($request) { |
||
56 | $value = "%{$request->filter}%"; |
||
57 | $q->where('user_id', 'like', $value) |
||
58 | ->orWhere('nama_jenis_prestasi', 'like', $value); |
||
59 | }); |
||
60 | } |
||
61 | |||
62 | $perPage = request()->has('per_page') ? (int) request()->per_page : null; |
||
63 | $response = $query->paginate($perPage); |
||
64 | |||
65 | foreach($response as $user){ |
||
66 | array_set($response->data, 'user', $user->user->name); |
||
67 | } |
||
68 | |||
69 | return response()->json($response) |
||
70 | ->header('Access-Control-Allow-Origin', '*') |
||
71 | ->header('Access-Control-Allow-Methods', 'GET'); |
||
72 | } |
||
73 | |||
74 | /** |
||
75 | * Show the form for creating a new resource. |
||
76 | * |
||
77 | * @return \Illuminate\Http\Response |
||
78 | */ |
||
79 | |||
80 | public function create() |
||
81 | { |
||
82 | $users = $this->user->all(); |
||
83 | |||
84 | foreach($users as $user){ |
||
85 | array_set($user, 'label', $user->name); |
||
86 | } |
||
87 | |||
88 | $response['user'] = $users; |
||
|
|||
89 | $response['status'] = true; |
||
90 | |||
91 | return response()->json($response); |
||
92 | } |
||
93 | |||
94 | /** |
||
95 | * Display the specified resource. |
||
96 | * |
||
97 | * @param \App\Prestasi $prestasi |
||
98 | * @return \Illuminate\Http\Response |
||
99 | */ |
||
100 | public function store(Request $request) |
||
133 | |||
134 | /** |
||
135 | * Store a newly created resource in storage. |
||
136 | * |
||
137 | * @param \Illuminate\Http\Request $request |
||
138 | * @return \Illuminate\Http\Response |
||
139 | */ |
||
140 | public function show($id) |
||
141 | { |
||
142 | $jenis_prestasi = $this->jenis_prestasi->findOrFail($id); |
||
143 | |||
144 | $response['user'] = $jenis_prestasi->user; |
||
145 | $response['jenis_prestasi'] = $jenis_prestasi; |
||
146 | $response['status'] = true; |
||
147 | |||
148 | return response()->json($response); |
||
149 | } |
||
150 | |||
151 | /** |
||
152 | * Show the form for editing the specified resource. |
||
153 | * |
||
154 | * @param \App\Prestasi $prestasi |
||
155 | * @return \Illuminate\Http\Response |
||
156 | */ |
||
157 | |||
158 | View Code Duplication | public function edit($id) |
|
159 | { |
||
160 | $jenis_prestasi = $this->jenis_prestasi->findOrFail($id); |
||
161 | |||
162 | array_set($jenis_prestasi->user, 'label', $jenis_prestasi->user->name); |
||
163 | |||
164 | $response['jenis_prestasi'] = $jenis_prestasi; |
||
165 | $response['user'] = $jenis_prestasi->user; |
||
166 | $response['status'] = true; |
||
167 | |||
168 | return response()->json($response); |
||
169 | } |
||
170 | |||
171 | /** |
||
172 | * Update the specified resource in storage. |
||
173 | * |
||
174 | * @param \Illuminate\Http\Request $request |
||
175 | * @param \App\Prestasi $prestasi |
||
176 | * @return \Illuminate\Http\Response |
||
177 | */ |
||
178 | public function update(Request $request, $id) |
||
219 | |||
220 | /** |
||
221 | * Remove the specified resource from storage. |
||
222 | * |
||
223 | * @param \App\Prestasi $prestasi |
||
224 | * @return \Illuminate\Http\Response |
||
225 | */ |
||
226 | View Code Duplication | public function destroy($id) |
|
238 | } |
||
239 |
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.