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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18 | class FieldsController extends Controller |
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19 | { |
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20 | use EntityManager; |
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21 | |||
22 | |||
23 | /** |
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24 | * @var FieldModel |
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25 | */ |
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26 | protected $model; |
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27 | |||
28 | /** |
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29 | * @var |
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30 | */ |
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31 | protected $fieldType; |
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32 | |||
33 | /** |
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34 | * FieldsController constructor. |
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35 | * @param FieldModel $model |
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36 | */ |
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37 | public function __construct(FieldModel $model) |
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38 | { |
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39 | $this->model = $model; |
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40 | } |
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41 | |||
42 | /** |
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43 | * @param $id |
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44 | * @return \Illuminate\Http\JsonResponse |
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45 | */ |
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46 | public function index($id) |
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51 | |||
52 | /** |
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53 | * @param CreateFieldRequest $request |
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54 | * @param $id |
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55 | * @return \Illuminate\Http\JsonResponse |
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56 | */ |
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57 | View Code Duplication | public function store(CreateFieldRequest $request, $id) |
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67 | |||
68 | /** |
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69 | * @param $id |
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70 | * @return \Illuminate\Http\JsonResponse |
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71 | */ |
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72 | public function show($id) |
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77 | |||
78 | |||
79 | /** |
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80 | * @param EditFieldRequest $request |
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81 | * @param $id |
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82 | * @param $fields |
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83 | * @return \Illuminate\Http\JsonResponse |
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84 | */ |
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85 | View Code Duplication | public function update(EditFieldRequest $request, $id, $fields) |
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95 | |||
96 | |||
97 | /** |
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98 | * @param $id |
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99 | * @param $fields |
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100 | * @return \Illuminate\Http\JsonResponse |
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101 | */ |
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102 | public function destroy($id, $fields) |
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107 | |||
108 | |||
109 | /** |
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110 | * @param $type |
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111 | * @return \Illuminate\Http\JsonResponse |
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112 | */ |
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113 | public function fieldTypeForm($type) |
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118 | |||
119 | |||
120 | /** |
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121 | * @param $type |
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122 | */ |
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123 | private function setFieldType($type) |
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131 | |||
132 | |||
133 | /** |
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134 | * @param Request $request |
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135 | * @param $id |
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136 | * @return \Illuminate\Http\JsonResponse |
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137 | */ |
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138 | public function reOrderFieldId(Request $request, $id) |
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143 | } |
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144 |
This check looks at variables that are passed out again to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
An additional type check may prevent trouble.