Viewing file:  EventListCommand.php (2.35 KB) -rw-r--r--
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<?php
namespace Illuminate\Foundation\Console;
use Illuminate\Console\Command;
use Illuminate\Foundation\Support\Providers\EventServiceProvider;
use Illuminate\Support\Str;
class EventListCommand extends Command
{
/**
* The name and signature of the console command.
*
* @var string
*/
protected $signature = 'event:list {--event= : Filter the events by name}';
/**
* The console command description.
*
* @var string
*/
protected $description = "List the application's events and listeners";
/**
* Execute the console command.
*
* @return mixed
*/
public function handle()
{
$events = $this->getEvents();
if (empty($events)) {
return $this->error("Your application doesn't have any events matching the given criteria.");
}
$this->table(['Event', 'Listeners'], $events);
}
/**
* Get all of the events and listeners configured for the application.
*
* @return array
*/
protected function getEvents()
{
$events = [];
foreach ($this->laravel->getProviders(EventServiceProvider::class) as $provider) {
$providerEvents = array_merge_recursive($provider->shouldDiscoverEvents() ? $provider->discoverEvents() : [], $provider->listens());
$events = array_merge_recursive($events, $providerEvents);
}
if ($this->filteringByEvent()) {
$events = $this->filterEvents($events);
}
return collect($events)->map(function ($listeners, $event) {
return ['Event' => $event, 'Listeners' => implode(PHP_EOL, $listeners)];
})->sortBy('Event')->values()->toArray();
}
/**
* Filter the given events using the provided event name filter.
*
* @param array $events
* @return array
*/
protected function filterEvents(array $events)
{
if (! $eventName = $this->option('event')) {
return $events;
}
return collect($events)->filter(function ($listeners, $event) use ($eventName) {
return Str::contains($event, $eventName);
})->toArray();
}
/**
* Determine whether the user is filtering by an event name.
*
* @return bool
*/
protected function filteringByEvent()
{
return ! empty($this->option('event'));
}
}
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