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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5 | class MultipleAdvancedModelTransformer extends AdvancedModelTransformer |
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6 | { |
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7 | /** |
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8 | * A list of Models to include to the results, even if they are not |
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9 | * specified by the user |
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10 | * |
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11 | * @var array |
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12 | */ |
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13 | private $included = array(); |
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14 | |||
15 | /** |
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16 | * Transforms data to an object |
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17 | * |
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18 | * @param string $data |
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19 | * @return \Model[] |
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20 | */ |
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21 | 1 | public function reverseTransform($data) |
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74 | |||
75 | /** |
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76 | * Add a model to the list of models that should be included in all cases |
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77 | * |
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78 | * @param \Model $model The model to include |
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79 | * @throws \Exception When a model is of an unsupported type |
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80 | */ |
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81 | 1 | public function addInclude(\Model $model) |
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93 | } |
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94 |
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()
can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.