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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| 14 | class Category extends Model |
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| 15 | { |
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| 16 | use Validatable; |
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| 17 | |||
| 18 | /** |
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| 19 | * Constant for card active status |
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| 20 | * |
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| 21 | * @var bool |
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| 22 | */ |
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| 23 | const ACTIVE = true; |
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| 24 | /** |
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| 25 | * Constant for card inactive status |
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| 26 | * |
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| 27 | * @var int |
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| 28 | */ |
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| 29 | const INACTIVE = false; |
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| 30 | |||
| 31 | /** |
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| 32 | * Timestamp enabled. |
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| 33 | * |
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| 34 | * @var bool |
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| 35 | */ |
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| 36 | public $timestamps = true; |
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| 37 | |||
| 38 | /** |
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| 39 | * Name of database table. |
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| 40 | * |
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| 41 | * @var string |
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| 42 | */ |
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| 43 | protected $table = 'card_category'; |
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| 44 | |||
| 45 | /** |
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| 46 | * List of allowed columns to be used in $this->fill(). |
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| 47 | * |
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| 48 | * @var array |
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| 49 | */ |
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| 50 | protected $fillable = ['title', 'description', 'parent', 'active', 'color']; |
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| 51 | |||
| 52 | /** |
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| 53 | * Get collection of cards in the category. |
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| 54 | */ |
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| 55 | public function cards() |
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| 59 | |||
| 60 | /** |
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| 61 | * Get collection of children categories |
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| 62 | */ |
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| 63 | public function children() |
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| 67 | |||
| 68 | /** |
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| 69 | * Get the parent category |
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| 70 | */ |
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| 71 | public function parent() |
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| 75 | |||
| 76 | /** |
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| 77 | * Get number of cards in a category |
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| 78 | * |
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| 79 | * @return int |
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| 80 | */ |
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| 81 | public function countCards() |
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| 85 | |||
| 86 | /** |
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| 87 | * Get collection of validation rules for model attributes |
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| 88 | * |
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| 89 | * @return array |
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| 90 | */ |
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| 91 | protected function getRules(): array |
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| 97 | |||
| 98 | /** |
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| 99 | * Scope to filter by active categories |
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| 100 | * |
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| 101 | * @param Builder $query |
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| 102 | * @return Builder |
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| 103 | */ |
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| 104 | public function scopeActive(Builder $query): Builder |
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| 108 | |||
| 109 | /** |
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| 110 | * Score to filter by LIKE search |
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| 111 | * |
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| 112 | * @param Builder $query |
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| 113 | * @param string $keyword |
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| 114 | * @return Builder |
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| 115 | */ |
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| 116 | View Code Duplication | public function scopeSearch(Builder $query, string $keyword): Builder |
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| 123 | } |
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| 124 |
This check looks for accesses to local static members using the fully qualified name instead of
self::.While this is perfectly valid, the fully qualified name of
Certificate::TRIPLEDES_CBCcould just as well be replaced byself::TRIPLEDES_CBC. Referencing local members withself::assured the access will still work when the class is renamed, makes it perfectly clear that the member is in fact local and will usually be shorter.