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 |
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| 12 | class ThreadsController extends Controller |
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| 13 | { |
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| 14 | /** |
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| 15 | * ThreadsController constructor. |
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| 16 | */ |
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| 17 | public function __construct() |
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| 24 | |||
| 25 | /** |
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| 26 | * Display a listing of the resource. |
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| 27 | * |
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| 28 | * @return \Illuminate\Http\Response |
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| 29 | */ |
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| 30 | public function index($slug=null) |
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| 61 | |||
| 62 | /** |
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| 63 | * Show the form for creating a new resource. |
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| 64 | * |
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| 65 | * @return \Illuminate\Http\Response |
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| 66 | */ |
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| 67 | public function create() |
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| 74 | |||
| 75 | /** |
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| 76 | * Store a newly created resource in storage. |
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| 77 | * |
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| 78 | * @param \Illuminate\Http\Request $request |
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| 79 | * @return \Illuminate\Http\Response |
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| 80 | */ |
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| 81 | public function store(Request $request) |
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| 106 | |||
| 107 | /** |
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| 108 | * Display the specified resource. |
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| 109 | * |
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| 110 | * @param \App\Thread $thread |
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| 111 | * @return \Illuminate\Http\Response |
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| 112 | */ |
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| 113 | public function show($channelId, Thread $thread) |
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| 124 | |||
| 125 | /** |
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| 126 | * Show the form for editing the specified resource. |
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| 127 | * |
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| 128 | * @param \App\Thread $thread |
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| 129 | * @return \Illuminate\Http\Response |
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| 130 | */ |
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| 131 | public function edit(Thread $thread) |
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| 135 | |||
| 136 | /** |
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| 137 | * Update the specified resource in storage. |
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| 138 | * |
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| 139 | * @param \Illuminate\Http\Request $request |
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| 140 | * @param \App\Thread $thread |
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| 141 | * @return \Illuminate\Http\Response |
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| 142 | */ |
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| 143 | public function update(Channel $channel, Thread $thread, Request $request) |
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| 158 | |||
| 159 | /** |
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| 160 | * Remove the specified resource from storage. |
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| 161 | * |
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| 162 | * @param \App\Thread $thread |
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| 163 | * @return \Illuminate\Http\Response |
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| 164 | */ |
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| 165 | public function destroy(Request $request, Channel $channel, Thread $thread) |
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| 174 | |||
| 175 | private function slugify($string){ |
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| 185 | |||
| 186 | |||
| 187 | private function generate_string($strength = 4) { |
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| 197 | } |
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| 198 |
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: