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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14 | class UserController extends Controller |
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15 | { |
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16 | /** |
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17 | * @Route("/users", name="users_list") |
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18 | * @Template("@App/users.html.twig") |
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19 | * |
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20 | * @return array |
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21 | */ |
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22 | public function usersListAction(Request $request) |
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32 | |||
33 | /** |
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34 | * @Route("/user/activate/{id}", name="activate_user") |
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35 | * @Template("@App/add.html.twig") |
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36 | * |
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37 | * @return RedirectResponse |
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38 | */ |
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39 | public function userActivateAction(Request $request, User $user) |
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52 | |||
53 | /** |
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54 | * @Route("/user/add", name="add_user") |
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55 | * @Template("@App/add.html.twig") |
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56 | * |
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57 | * @return array|RedirectResponse |
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58 | */ |
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59 | View Code Duplication | public function userAddAction(Request $request) |
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80 | |||
81 | /** |
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82 | * @Route("/user/edit/{id}", name="edit_user") |
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83 | * @Template("@App/add.html.twig") |
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84 | * |
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85 | * @return array|RedirectResponse |
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86 | */ |
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87 | View Code Duplication | public function userEditAction(Request $request, User $user) |
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107 | } |
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108 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.