EC-CUBE /
ec-cube
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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| 47 | class SaleLimitOneValidator extends ItemValidator |
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| 48 | { |
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| 49 | /** |
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| 50 | * @param ItemInterface $item |
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| 51 | * @param PurchaseContext $context |
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| 52 | * |
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| 53 | * @throws InvalidItemException |
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| 54 | */ |
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| 55 | protected function validate(ItemInterface $item, PurchaseContext $context) |
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| 56 | { |
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| 57 | if (!$item->isProduct()) { |
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| 58 | return; |
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| 59 | } |
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| 60 | |||
| 61 | $quantity = $item->getQuantity(); |
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| 62 | if (1 < $quantity) { |
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| 63 | $this->throwInvalidItemException('商品は１個しか購入できません。'); |
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| 64 | } |
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| 65 | } |
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| 66 | |||
| 67 | protected function handle(ItemInterface $item, PurchaseContext $context) |
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| 68 | { |
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| 69 | $item->setQuantity(1); |
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| 70 | } |
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| 71 | } |
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| 72 |
