Clockwork\DataSource\EloquentDataSource::listenToEvents PHP Method

    public function listenToEvents()
    {
        if (class_exists('Illuminate\\Database\\Events\\QueryExecuted')) {
            // Laravel 5.2
            $this->eventDispatcher->listen('Illuminate\\Database\\Events\\QueryExecuted', [$this, 'registerQuery']);
        } else {
            // Laravel 5.1
            $this->eventDispatcher->listen('illuminate.query', [$this, 'registerLegacyQuery']);
        }
    }