'array', 'queued_at' => 'datetime', 'sent_at' => 'datetime', 'delivered_at' => 'datetime', 'read_at' => 'datetime', 'failed_at' => 'datetime', 'next_retry_at' => 'datetime', ]; } public function message() { return $this->belongsTo(NotificationMessage::class, 'notification_message_id'); } public function channelConfig() { return $this->belongsTo(NotificationChannel::class, 'notification_channel_id'); } }