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 namespace CosmicRadioTV\Podcast\Controllers;  | 
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| 11 | class Episodes extends Controller  | 
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| 12 | { | 
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| 13 | public $implement = [  | 
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| 14 | 'Backend.Behaviors.FormController',  | 
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| 15 | 'Backend.Behaviors.ListController',  | 
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| 16 | 'Backend.Behaviors.RelationController',  | 
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| 17 | ];  | 
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| 18 | |||
| 19 | public $formConfig = 'config_form.yaml';  | 
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| 20 | public $listConfig = 'config_list.yaml';  | 
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| 21 | public $relationConfig = 'config_relation.yaml';  | 
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| 22 | |||
| 23 | public $requiredPermissions = ['cosmicradiotv.podcast.access_episode*'];  | 
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| 24 | |||
| 25 | public function __construct()  | 
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| 31 | |||
| 32 | public function index_onDelete()  | 
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| 48 | |||
| 49 | View Code Duplication |     public function listExtendQuery($query, $definition = null) { | 
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| 66 | }  |