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:
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15 | View Code Duplication | class SetResetButtonSubscriber implements EventSubscriberInterface |
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16 | { |
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17 | /** |
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18 | * List events for this subscriber |
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19 | * |
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20 | * @return array |
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21 | */ |
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22 | public static function getSubscribedEvents() |
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26 | |||
27 | /** |
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28 | * Pre set Data form the subscriber and add button |
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29 | * |
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30 | * @param FormEvent $event |
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31 | */ |
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32 | public function preSetData(FormEvent $event) |
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38 | |||
39 | /** |
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40 | * Add the button |
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41 | * |
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42 | * @param FormInterface $form |
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43 | */ |
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44 | private function addResetButton(FormInterface $form) |
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52 | } |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.