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 RoleAggregate extends ObjectAggregate implements RoleAggregateInterface |
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16 | { |
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17 | /** |
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18 | * Add role. |
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19 | * |
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20 | * @param Role $role |
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21 | 9 | */ |
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22 | public function addRole(Role $role) |
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26 | |||
27 | /** |
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28 | * Remove all roles. |
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29 | */ |
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30 | 1 | public function removeRoles() |
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34 | |||
35 | /** |
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36 | * Remove role by name. |
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37 | * |
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38 | * @param Object|string $roleName |
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39 | */ |
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40 | 2 | public function removeRole($roleName) |
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44 | |||
45 | /** |
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46 | * Add roles from array. |
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47 | * |
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48 | * @param array $roles |
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49 | */ |
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50 | 1 | public function setRoles($roles) |
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54 | |||
55 | /** |
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56 | * Return all roles. |
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57 | * |
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58 | * @return array()|Role[] |
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59 | */ |
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60 | 6 | public function getRoles() |
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64 | |||
65 | /** |
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66 | * Return array of names for registered roles. |
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67 | * |
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68 | * @return array |
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69 | */ |
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70 | 6 | public function getRolesNames(): array |
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74 | |||
75 | /** |
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76 | * Return role by name. |
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77 | * |
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78 | * @param Role|string $roleName |
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79 | * |
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80 | * @return null|Role |
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81 | */ |
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82 | 3 | public function getRole($roleName) |
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86 | } |
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87 |
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.