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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| 9 | class TransitionNotAllowed extends CouldNotPerformTransition implements ProvidesSolution |
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| 10 | { |
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| 11 | protected string $transitionClass; |
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| 12 | |||
| 13 | public static function make(string $modelClass, string $transitionClass): self |
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| 14 | { |
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| 15 | return (new static("The transition `{$transitionClass}` is not allowed on model `{$modelClass}` at the moment.")) |
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| 16 | ->setTransitionClass($transitionClass); |
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| 17 | } |
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| 18 | |||
| 19 | public function setTransitionClass(string $transitionClass): self |
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| 20 | { |
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| 21 | $this->transitionClass = $transitionClass; |
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| 22 | |||
| 23 | return $this; |
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| 24 | } |
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| 25 | |||
| 26 | public function getSolution(): Solution |
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| 27 | { |
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| 28 | return BaseSolution::create('Transition not allowed') |
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| 29 | ->setSolutionDescription("Review your implementation of `canTransition` in {$this->transitionClass} if this is unexpected") |
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| 30 | ->setDocumentationLinks([ |
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| 31 | 'Custom transition classes' => 'https://docs.spatie.be/laravel-model-states/v1/working-with-transitions/02-custom-transition-classes/', |
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| 32 | ]); |
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| 33 | } |
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| 34 | } |
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| 35 |