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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| 25 | class Catalog extends \Model { | 
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| 26 | static $cols = [  | 
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| 27 | 'name' => ['type' => 'text'],  | 
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| 28 | 'weight' => ['type' => 'number'],  | 
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| 29 | 'parent_id' => ['type' => 'select', 'source' => 'relation', 'relation' => 'parent', 'extraValues' => ['0' => 'Нет родителя']],  | 
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| 30 | 'icon_file_id' => ['type' => 'image'],  | 
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| 31 | 'items_count' => ['type' => 'number'],  | 
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| 32 | 'childsMgr' => ['type' => 'dataManager', 'relation' => 'childs'],  | 
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| 33 | 'categoriesMgr' => ['type' => 'dataManager', 'relation' => 'categories'],  | 
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| 34 | ];  | 
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| 35 | static $labels = [  | 
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| 36 | 'name' => 'Название',  | 
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| 37 | 'weight' => 'Вес соритровки',  | 
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| 38 | 'parent_id' => 'Родитель',  | 
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| 39 | 'icon_file_id' => 'Иконка',  | 
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| 40 | 'childsMgr' => 'Дочерние каталоги',  | 
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| 41 | 'categoriesMgr' => 'Категории товаров',  | 
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| 42 | ];  | 
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| 43 | static $dataManagers = [  | 
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| 44 | 'manager' => [  | 
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| 45 | 'filters' => ['name', 'parent_id'],  | 
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| 46 | 'cols' => ['name', 'icon_file_id', 'childsMgr', 'categoriesMgr'],  | 
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| 47 | 'sortMode' => true  | 
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| 48 | ]  | 
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| 49 | ];  | 
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| 50 | static $forms = [  | 
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| 51 | 'manager' => [  | 
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| 52 | 'map' => [  | 
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| 53 | ['name', 'icon_file_id'],  | 
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| 54 | ['categoriesMgr'],  | 
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| 55 | ['childsMgr'],  | 
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| 56 | |||
| 57 | ]  | 
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| 58 | ]  | 
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| 59 | ];  | 
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| 60 | |||
| 61 |     public function calcItemsCount($save = true) { | 
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| 74 | |||
| 75 | View Code Duplication |     static function relations() { | 
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| 97 | }  | 
            
The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using
the property is implicitly global.
To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2.