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<?php |
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namespace Spatie\EventProjector\EventHandlers; |
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use Exception; |
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trait HandlesEvents |
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{ |
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public function handlesEvents(): array |
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{ |
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return $this->handlesEvents ?? []; |
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} |
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public function handlesEvent(object $event): bool |
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{ |
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$handlesEvents = $this->handlesEvents(); |
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$eventClass = get_class($event); |
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return array_key_exists($eventClass, $handlesEvents) |
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|| $this->checkNonAssociativeEvent($handlesEvents, $eventClass); |
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} |
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public function methodNameThatHandlesEvent(object $event): string |
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{ |
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$handlesEvents = $this->handlesEvents(); |
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$eventClass = get_class($event); |
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$methodName = $this->getAssociativeMethodName($handlesEvents, $eventClass); |
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if ($methodName === '') { |
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$methodName = $this->getNonAssociativeMethodName($handlesEvents, $eventClass); |
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} |
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return $methodName; |
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} |
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public function handleException(Exception $exception) |
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{ |
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report($exception); |
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} |
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protected function checkNonAssociativeEvent(array $handlesEvents, string $eventClass): bool |
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{ |
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return array_key_exists($eventClass, array_flip($handlesEvents)); |
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} |
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protected function getAssociativeMethodName(array $handlesEvents, string $eventClass): string |
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{ |
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$methodName = $handlesEvents[$eventClass] ?? ''; |
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if ($methodName !== '') { |
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return $methodName; |
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} |
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$wildcardMethod = $handlesEvents['*'] ?? ''; |
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if ($wildcardMethod !== '') { |
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return $wildcardMethod; |
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} |
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return ''; |
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} |
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protected function getNonAssociativeMethodName(array $handlesEvents, string $eventClass): string |
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{ |
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if ($this->checkNonAssociativeEvent($handlesEvents, $eventClass)) { |
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return 'on'.ucfirst(class_basename($eventClass)); |
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} |
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return ''; |
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} |
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} |
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spatie /
laravel-event-projector
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: