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<?php |
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namespace Spatie\EventProjector\Console; |
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use Illuminate\Console\Command; |
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use Illuminate\Support\Collection; |
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use Spatie\EventProjector\EventProjectionist; |
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use Spatie\EventProjector\Models\StoredEvent; |
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use Spatie\EventProjector\Projectors\Projector; |
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use Spatie\EventProjector\Exceptions\InvalidEventHandler; |
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class ReplayEventsCommand extends Command |
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{ |
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protected $signature = 'event-projector:replay-events |
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{--projector=*} : The projector that should receive the event |
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{--only-new-events} : Only replay events that were not handled yet'; |
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protected $description = 'Replay stored events'; |
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/** @var \Spatie\EventProjector\EventProjectionist */ |
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protected $eventProjectionist; |
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/** @var string */ |
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protected $storedEventModelClass; |
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public function __construct(EventProjectionist $eventProjectionist, string $storedEventModelClass) |
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{ |
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parent::__construct(); |
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$this->eventProjectionist = $eventProjectionist; |
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$this->storedEventModelClass = $storedEventModelClass; |
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} |
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public function handle() |
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{ |
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if (!$this->commandShouldRun()) { |
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return; |
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} |
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$projectors = $this->getProjectors(); |
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if ($projectors->isEmpty()) { |
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$this->warn('No projectors found to replay events to...'); |
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return; |
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} |
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$afterEventId = $this->determineAfterEventId($projectors); |
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if ($afterEventId === StoredEvent::getMaxId()) { |
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$this->warn("There are no events to replay."); |
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} |
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$afterEventId === 0 |
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? $this->comment('Replaying all events...') |
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: $this->comment("Replaying events after stored event id {$afterEventId}..."); |
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$this->emptyLine(); |
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$bar = $this->output->createProgressBar(StoredEvent::count()); |
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$onEventReplayed = function () use ($bar) { |
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$bar->advance(); |
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}; |
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$this->eventProjectionist->replayEvents($projectors, $afterEventId, $onEventReplayed); |
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$bar->finish(); |
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$this->emptyLine(2); |
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$this->comment('All done!'); |
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} |
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protected function getProjectors(): Collection |
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{ |
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$onlyCallProjectors = $this->option('projector'); |
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$this->guardAgainstNonExistingProjectors($onlyCallProjectors); |
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$allProjectors = $this->eventProjectionist->getProjectors(); |
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if (count($onlyCallProjectors) === 0) { |
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return $allProjectors; |
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} |
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return $allProjectors |
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->filter(function ($projector) use ($onlyCallProjectors) { |
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if (!is_string($projector)) { |
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$projector = get_class($projector); |
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} |
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return in_array($projector, $onlyCallProjectors); |
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}); |
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} |
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protected function guardAgainstNonExistingProjectors(array $onlyCallProjectors) |
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{ |
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foreach ($onlyCallProjectors as $projector) { |
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if (!class_exists($projector)) { |
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throw InvalidEventHandler::doesNotExist($projector); |
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} |
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} |
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} |
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protected function emptyLine(int $amount = 1) |
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{ |
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foreach (range(1, $amount) as $i) { |
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$this->line(''); |
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} |
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} |
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protected function commandShouldRun(): bool |
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{ |
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if (count($this->option('projector') ?? []) === 0) { |
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if (!$confirmed = $this->confirm('Are you sure you want to replay the events to all projectors?')) { |
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$this->warn('No events replayed!'); |
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return false; |
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} |
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} |
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return true; |
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} |
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protected function determineAfterEventId(Collection $projectors): int |
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{ |
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//TODO: add test |
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if (!$this->hasOption('only-new-events')) { |
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return 0; |
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} |
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return $projectors |
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->map(function ($projector) { |
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if (is_string($projector)) { |
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$projector = app($projector); |
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} |
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return $projector; |
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}) |
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->map(function (Projector $projector) { |
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return $projector->getLastProcessedEventId(); |
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}) |
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->min(); |
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} |
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} |
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spatie /
laravel-event-projector
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.