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:
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| 12 | View Code Duplication | final class CartExistsValidator extends ConstraintValidator |
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| 13 | { |
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| 14 | /** |
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| 15 | * @var OrderRepositoryInterface |
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| 16 | */ |
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| 17 | private $orderRepository; |
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| 18 | |||
| 19 | /** |
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| 20 | * @param OrderRepositoryInterface $orderRepository |
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| 21 | */ |
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| 22 | public function __construct(OrderRepositoryInterface $orderRepository) |
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| 27 | /** |
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| 28 | * {@inheritdoc} |
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| 29 | */ |
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| 30 | public function validate($token, Constraint $constraint) |
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| 36 | } |
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| 37 |