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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7 | final class Controller |
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8 | { |
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9 | /** |
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10 | * Controller constructor. |
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11 | * |
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12 | * Set context and fetch post id |
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13 | */ |
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14 | function __construct() |
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18 | |||
19 | /** |
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20 | * make singleton |
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21 | * |
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22 | * @return null|Controller |
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23 | */ |
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24 | public static function Instance() |
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33 | |||
34 | /** |
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35 | * Set all pages from within the functions.php->setControllers() |
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36 | * |
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37 | * @param $pages |
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38 | */ |
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39 | public function setPages($pages) |
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43 | |||
44 | /** |
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45 | * Set context for the page |
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46 | */ |
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47 | private function setContext() |
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53 | |||
54 | private function returnId($key) |
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62 | |||
63 | /** |
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64 | * Find the correct controller for the single post object |
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65 | * |
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66 | * If none controller is found, fallback on teh default post |
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67 | */ |
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68 | View Code Duplication | public function single() |
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85 | |||
86 | public function fourOFour() |
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90 | |||
91 | View Code Duplication | public function archive() |
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108 | |||
109 | public function page() |
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139 | |||
140 | /** |
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141 | * Fallback when no controller found or controller file isn't present |
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142 | */ |
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143 | private function returnDefault() |
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149 | |||
150 | /** |
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151 | * Return name of the body class |
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152 | * |
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153 | * @return bool|string |
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154 | */ |
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155 | public function getClass() |
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163 | } |
Adding explicit visibility (
private
,protected
, orpublic
) is generally recommend to communicate to other developers how, and from where this method is intended to be used.