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<?php
namespace Illuminate\Database\Eloquent;
use Illuminate\Support\Arr;
trait BroadcastsEvents
{
/**
* Boot the event broadcasting trait.
*
* @return void
*/
public static function bootBroadcastsEvents()
{
static::created(function ($model) {
$model->broadcastCreated();
});
static::updated(function ($model) {
$model->broadcastUpdated();
});
if (method_exists(static::class, 'bootSoftDeletes')) {
static::softDeleted(function ($model) {
$model->broadcastTrashed();
});
static::restored(function ($model) {
$model->broadcastRestored();
});
}
static::deleted(function ($model) {
$model->broadcastDeleted();
});
}
/**
* Broadcast that the model was created.
*
* @param \Illuminate\Broadcasting\Channel|\Illuminate\Contracts\Broadcasting\HasBroadcastChannel|array|null $channels
* @return \Illuminate\Broadcasting\PendingBroadcast
*/
public function broadcastCreated($channels = null)
{
return $this->broadcastIfBroadcastChannelsExistForEvent(
$this->newBroadcastableModelEvent('created'), 'created', $channels
);
}
/**
* Broadcast that the model was updated.
*
* @param \Illuminate\Broadcasting\Channel|\Illuminate\Contracts\Broadcasting\HasBroadcastChannel|array|null $channels
* @return \Illuminate\Broadcasting\PendingBroadcast
*/
public function broadcastUpdated($channels = null)
{
return $this->broadcastIfBroadcastChannelsExistForEvent(
$this->newBroadcastableModelEvent('updated'), 'updated', $channels
);
}
/**
* Broadcast that the model was trashed.
*
* @param \Illuminate\Broadcasting\Channel|\Illuminate\Contracts\Broadcasting\HasBroadcastChannel|array|null $channels
* @return \Illuminate\Broadcasting\PendingBroadcast
*/
public function broadcastTrashed($channels = null)
{
return $this->broadcastIfBroadcastChannelsExistForEvent(
$this->newBroadcastableModelEvent('trashed'), 'trashed', $channels
);
}
/**
* Broadcast that the model was restored.
*
* @param \Illuminate\Broadcasting\Channel|\Illuminate\Contracts\Broadcasting\HasBroadcastChannel|array|null $channels
* @return \Illuminate\Broadcasting\PendingBroadcast
*/
public function broadcastRestored($channels = null)
{
return $this->broadcastIfBroadcastChannelsExistForEvent(
$this->newBroadcastableModelEvent('restored'), 'restored', $channels
);
}
/**
* Broadcast that the model was deleted.
*
* @param \Illuminate\Broadcasting\Channel|\Illuminate\Contracts\Broadcasting\HasBroadcastChannel|array|null $channels
* @return \Illuminate\Broadcasting\PendingBroadcast
*/
public function broadcastDeleted($channels = null)
{
return $this->broadcastIfBroadcastChannelsExistForEvent(
$this->newBroadcastableModelEvent('deleted'), 'deleted', $channels
);
}
/**
* Broadcast the given event instance if channels are configured for the model event.
*
* @param mixed $instance
* @param string $event
* @param mixed $channels
* @return \Illuminate\Broadcasting\PendingBroadcast|null
*/
protected function broadcastIfBroadcastChannelsExistForEvent($instance, $event, $channels = null)
{
if (! static::$isBroadcasting) {
return;
}
if (! empty($this->broadcastOn($event)) || ! empty($channels)) {
return broadcast($instance->onChannels(Arr::wrap($channels)));
}
}
/**
* Create a new broadcastable model event event.
*
* @param string $event
* @return mixed
*/
public function newBroadcastableModelEvent($event)
{
return tap($this->newBroadcastableEvent($event), function ($event) {
$event->connection = property_exists($this, 'broadcastConnection')
? $this->broadcastConnection
: $this->broadcastConnection();
$event->queue = property_exists($this, 'broadcastQueue')
? $this->broadcastQueue
: $this->broadcastQueue();
$event->afterCommit = property_exists($this, 'broadcastAfterCommit')
? $this->broadcastAfterCommit
: $this->broadcastAfterCommit();
});
}
/**
* Create a new broadcastable model event for the model.
*
* @param string $event
* @return \Illuminate\Database\Eloquent\BroadcastableModelEventOccurred
*/
protected function newBroadcastableEvent($event)
{
return new BroadcastableModelEventOccurred($this, $event);
}
/**
* Get the channels that model events should broadcast on.
*
* @param string $event
* @return \Illuminate\Broadcasting\Channel|array
*/
public function broadcastOn($event)
{
return [$this];
}
/**
* Get the queue connection that should be used to broadcast model events.
*
* @return string|null
*/
public function broadcastConnection()
{
//
}
/**
* Get the queue that should be used to broadcast model events.
*
* @return string|null
*/
public function broadcastQueue()
{
//
}
/**
* Determine if the model event broadcast queued job should be dispatched after all transactions are committed.
*
* @return bool
*/
public function broadcastAfterCommit()
{
return false;
}
}
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