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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| 9 | class SilverstripeColumnsPageControllerExtension extends Extension |
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| 10 | { |
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| 11 | private static $allowed_actions = [ |
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| 12 | 'myspecificpagemenuitems' => true |
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| 13 | ]; |
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| 14 | |||
| 15 | /** |
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| 16 | * @return bool |
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| 17 | */ |
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| 18 | View Code Duplication | public function HasFullWidthContent() |
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| 30 | |||
| 31 | /** |
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| 32 | * @return bool |
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| 33 | */ |
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| 34 | public function HasSideBar() |
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| 53 | |||
| 54 | /** |
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| 55 | * @param boolean $asClassName |
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| 56 | * |
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| 57 | * @return string | int |
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| 58 | */ |
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| 59 | public function NumberOfColumns($asClassName = true) |
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| 83 | |||
| 84 | /** |
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| 85 | * returns a data list of items that have been edited last - up to one day ago. |
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| 86 | * This ensures that we do not show stuff we have just fixed up... |
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| 87 | * @return DataList |
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| 88 | */ |
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| 89 | public function RecentlyUpdated($limit = 5) |
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| 107 | |||
| 108 | /** |
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| 109 | * Children Menu Items |
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| 110 | * @return null | DataList |
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| 111 | */ |
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| 112 | View Code Duplication | public function InThisSection() |
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| 123 | |||
| 124 | /** |
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| 125 | * Sibling Menu Items |
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| 126 | * @return null | DataList |
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| 127 | */ |
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| 128 | public function AlsoSee() |
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| 143 | |||
| 144 | /** |
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| 145 | * returns relevant menus items for |
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| 146 | * @param SS_Request |
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| 147 | * @return string (html) |
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| 148 | */ |
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| 149 | public function myspecificpagemenuitems($request) |
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| 169 | |||
| 170 | public function IsNotHome() |
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| 176 | } |
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| 177 |
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.