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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10 | class CommentsController extends Controller{ |
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11 | |||
12 | public function beforeAction(){ |
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40 | |||
41 | /** |
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42 | * get all comments |
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43 | * |
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44 | */ |
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45 | public function getAll(){ |
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59 | |||
60 | public function create(){ |
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61 | |||
62 | $postId = Encryption::decryptId($this->request->data("post_id")); |
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63 | |||
64 | $content = $this->request->data("content"); |
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65 | |||
66 | $comment = $this->comment->create(Session::getUserId(), $postId, $content); |
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67 | |||
68 | if(!$comment){ |
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69 | $this->view->renderErrors($this->comment->errors()); |
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70 | }else{ |
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71 | |||
72 | $html = $this->view->render(Config::get('VIEWS_PATH') . 'posts/comments.php', array("comments" => $comment)); |
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73 | $this->view->renderJson(array("data" => $html)); |
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74 | } |
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75 | } |
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76 | |||
77 | /** |
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78 | * whenever the user hits 'edit' button, |
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79 | * a request will be sent to get the update form of that comment, |
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80 | * so that the user can 'update' or even 'cancel' the edit request. |
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81 | * |
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82 | */ |
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83 | View Code Duplication | public function getUpdateForm(){ |
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96 | |||
97 | /** |
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98 | * update comment |
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99 | * |
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100 | */ |
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101 | View Code Duplication | public function update(){ |
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102 | |||
103 | $commentId = Encryption::decryptIdWithDash($this->request->data("comment_id")); |
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104 | $content = $this->request->data("content"); |
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105 | |||
106 | if(!$this->comment->exists($commentId)){ |
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107 | return $this->error(404); |
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108 | } |
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109 | |||
110 | $comment = $this->comment->update($commentId, $content); |
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111 | |||
112 | if(!$comment){ |
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113 | $this->view->renderErrors($this->comment->errors()); |
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114 | }else{ |
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115 | |||
116 | $html = $this->view->render(Config::get('VIEWS_PATH') . 'posts/comments.php', array("comments" => $comment)); |
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117 | $this->view->renderJson(array("data" => $html)); |
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118 | } |
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119 | } |
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120 | |||
121 | /** |
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122 | * get comment by Id |
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123 | * |
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124 | */ |
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125 | View Code Duplication | public function getById(){ |
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138 | |||
139 | View Code Duplication | public function delete(){ |
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151 | |||
152 | public function isAuthorized(){ |
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177 | } |
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178 |
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.